Verificar o MPLS nos Switches Catalyst 9000
Contents
Introduction
Este documento descreve como configurar e validar Multiprotocol Label Switching (MPLS) Layer 3 Virtual Private Network (VPN) nos switches da série Catalyst 9000.
Prerequisites
Requirements
A Cisco recomenda que você tenha conhecimento destes tópicos:
- Encaminhamento de IP
- BGP (Border Gateway Protocol)
- MPLS
Componentes Utilizados
As informações neste documento são baseadas nestas versões de software e hardware:
- C9500 no Cisco IOS® XE 16.12.4
- C9300 no Cisco IOS® XE 16.12.4
- C3850 no Cisco IOS® XE 16.9.6
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. Se a rede estiver ativa, certifique-se de que você entenda o impacto potencial de qualquer comando.
Informações de Apoio
As VPNs de Camada 3 do MPLS (L3VPN) usam um modelo ponto-a-ponto que usa o BGP para distribuir informações relacionadas à VPN. Uma VPN MPLS consiste em um conjunto de sites que são interconectados por meio de uma rede central de provedor MPLS. Em cada local do cliente, um ou mais dispositivos de borda do cliente (CE) se conectam a um ou mais dispositivos de borda (PE).
No roteamento convencional da camada 3, à medida que um pacote atravessa a rede, cada switch extrai todas as informações relevantes para encaminhar o pacote do cabeçalho da camada 3. Essas informações são usadas como um índice para uma pesquisa na tabela de roteamento para determinar o próximo salto do pacote.
No caso mais comum, o único campo relevante no cabeçalho é o campo de endereço de destino, mas em alguns casos, outros campos de cabeçalho também podem ser relevantes. Como resultado, a análise do cabeçalho deve ser feita independentemente em cada switch pelo qual o pacote passa. Além disso, uma consulta complicada da tabela também deve ser feita em cada switch.
Na comutação de rótulo, a análise do cabeçalho da Camada 3 é feita apenas uma vez. O cabeçalho da Camada 3 é mapeado em um comprimento fixo, um valor não estruturado chamado alabel.
Muitos cabeçalhos diferentes podem mapear para o mesmo rótulo, desde que esses cabeçalhos sempre resultem na mesma escolha do próximo salto. Na verdade, um rótulo representa uma classe de equivalência de encaminhamento (FEC) ou seja, um conjunto de pacotes que, por mais diferentes que sejam, podem ser indistinguíveis pela função de encaminhamento.
A escolha inicial de um rótulo não precisa se basear exclusivamente no conteúdo do cabeçalho do pacote da Camada 3; por exemplo, as decisões de encaminhar pacotes em saltos subsequentes também podem ser baseadas em outros fatores.
Quando um rótulo é atribuído, um cabeçalho de rótulo curto é adicionado na parte frontal do pacote da Camada 3. Esse cabeçalho é transportado pela rede como parte do pacote. Em saltos subsequentes em cada switch MPLS na rede, os rótulos são trocados e as decisões são tomadas por meio da pesquisa da tabela de encaminhamento MPLS para o rótulo transportado no cabeçalho do pacote. Portanto, o cabeçalho do pacote não precisa ser reavaliado durante o trânsito do pacote pela rede. Como o rótulo é de comprimento fixo e não estruturado, o processo de pesquisa da tabela de encaminhamento MPLS é simples e rápido.
Cada roteador de switching de rótulo (LSR) na rede toma uma decisão independente e local sobre qual valor de rótulo usar para representar uma classe de equivalência de encaminhamento. Essa associação é conhecida como associação de rótulo. Cada LSR informa aos seus vizinhos sobre os vínculos de rótulo que fez. Essa consciência das associações de rótulo por switches vizinhos é facilitada por estes protocolos:
-
Protocolo de Distribuição de Rótulo (LDP - Label Distribution Protocol) - Permite que LSRs pares em uma rede MPLS troquem informações de rótulo para suportar encaminhamento salto a salto em uma rede MPLS
-
Border Gateway Protocol (BGP) - Usado para suportar VPNs (Virtual Private Networks) MPLS
Quando um pacote rotulado é enviado do LSR A ao LSR B, o valor do rótulo transportado pelo pacote IP é o valor do rótulo que o LSR B atribuiu para representar a classe de equivalência de encaminhamento do pacote. Assim, o valor do rótulo muda conforme o pacote IP atravessa a rede.
Como usar este guia
O guia é dividido em dois cenários e uma seção de validação da escala de hardware é apresentada no final do documento:
- adjacência de salto único dentro do núcleo MPLS
- Adjacências de multi-caminho de custo igual (ECMP) dentro do núcleo MPLS
- como verificar o uso de TCAM para problemas de escala
Cada cenário abrange a verificação de prefixos e rótulos para cada dispositivo MPLS.
Terminology
| MPLS |
Multi-Protocol Label Switching |
Uma tecnologia de encaminhamento de pacotes de alto desempenho que integra o desempenho e os recursos de gerenciamento de tráfego da comutação da camada de enlace de dados (Camada 2) com a escalabilidade, flexibilidade e desempenho do roteamento da camada de rede (Camada 3). |
| PE |
Borda do provedor (switch/roteador) |
O dispositivo de borda da rede do provedor que recebe prefixos IP de um cliente CE e os passa para a nuvem MPLS. |
| CE |
Borda do cliente (switch/roteador) |
Um dispositivo nas instalações do cliente conectado ao roteador de borda do provedor de uma rede IP/MPLS do provedor de serviços. |
| LDP |
protocolo RDP |
O LDP é um protocolo que gera e troca automaticamente rótulos entre roteadores. Cada roteador gera localmente rótulos para seus prefixos e depois anuncia os valores de rótulo para seus vizinhos. |
| LSPA |
Rótulo de matriz de caminho do switch |
O conjunto de rótulos para alcançar um destino MPLS específico. Em um L3VPN típico, você pode ter o rótulo IGP + VPN. Se houver um túnel TE, você terá o rótulo TE + IGP + VPN. O Catalyst 9000 pode suportar até 6 rótulos, e esse conjunto de rótulos é chamado de LSPA. |
| ID da pilha de etiquetas |
ID da pilha de etiquetas |
R índice exclusivo para identificar uma pilha de rótulos (umPermite o compartilhamento LSPA). |
| Rótulo |
Rótulo |
O rótulo MPLS usado para pesquisa. Vários rótulos formam uma pilha de rótulos. |
| ID do prefixo |
Identificador de prefixo |
O Catalyst 9000 cria um recurso global para cada prefixo (há tantas IDs de prefixo quanto há rotas no caso de alocação de rótulo por prefixo). |
| EM |
Correspondência exata |
Uma entrada na memória Hash que é uma correspondência 1:1 (rota de host, host diretamente conectado). |
| LPM |
Maior correspondência de prefixo |
Qualquer rota que seja /31 ou menor (as rotas /32 são do tipo EM). |
| TCAM |
Memória ternária endereçável de conteúdo |
Um tipo de memória que armazena e consulta entradas com três entradas diferentes: 0, 1 e X. Esse tipo de memória deve ser usado nos casos em que pode haver várias correspondências para a mesma entrada, e o Hash resultante para cada uma não é exclusivo. Esta tabela inclui uma máscara ou um valor "X" que lhe permite saber se corresponde ou não a esta entrada. |
| CAM |
Memória endereçável de conteúdo |
Termo geral para memória de hardware (Hash/TCAM). |
| RIB |
Base de informações de roteamento |
a tabela de roteamento vista em 'show ip route' |
| FIB |
Base de Informações de Encaminhamento |
tabela simplificada com prefixos adicionados pelas tabelas RIB e ARP com um ponteiro para a tabela ADJ |
| Diretamente conectado |
Rota diretamente conectada |
Um prefixo de host conectado localmente (ARP adjacente) |
| Conectado Indiretamente |
Rota conectada indiretamente |
Uma rota que passa por um próximo salto remoto para alcançar |
| ADJ |
Adjacência (tabela) |
armazena informações do próximo salto usadas para reescrever pacotes |
| EM |
Correspondência exata |
Hosts conectados, prefixos de host /32 indiretos |
| TCAM |
Memória ternária endereçável de conteúdo |
Prefixos indiretos /31 ou menores |
| ALIMENTADO |
Driver do mecanismo de encaminhamento |
A camada ASIC (hardware) |
| FMAN-FP |
Gerenciador de encaminhamento - Plano de encaminhamento |
O FMAN-FP gerencia objetos de software que adicionam, excluem ou modificam informações do FED |
| SI |
Índice da estação |
Índice da estação = informação de reescrita de pacote (RI = Rewrite Index) e informações de interface de saída (DI = Destination Index) |
| RI |
Reescrever índice |
Informações de regravação de endereço MAC para encaminhamento da camada 3 para a adjacência do próximo salto |
| DI |
Índice de destino |
Índice que aponta para a interface de saída |
Configurar e verificar
Cenário 1. L3VPN com adjacência de salto único no núcleo MPLS
Topologia de referência
Para a finalidade deste exemplo, os switches Catalyst 9300 funcionam como dispositivos PE, o Catalyst 9500 na função Virtual Stackwise como o dispositivo P e os switches Catalyst 3850 funcionam como dispositivos CE.
Detalhes da configuração
Configuração do C3850-CE-1
hostname C3850-CE-1
!
interface Loopback0
ip address 192.168.3.1 255.255.255.0
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.1 255.255.255.252
!
router eigrp 420
network 10.0.0.0 0.0.0.3
network 192.168.3.0 0.0.0.255
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.2
Configuração do C9300-PE-1
hostname C9300-PE-1
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.2 255.255.255.255
!
interface GigabitEthernet1/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.2 255.255.255.252
!
interface GigabitEthernet1/0/2
no switchport
ip address 10.0.0.5 255.255.255.252
!
router eigrp 420
!
address-family ipv4 vrf RED
network 10.0.0.0 0.0.0.3
autonomous-system 420
exit-address-family
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.4 remote-as 69420
neighbor 192.168.1.4 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.4 activate
neighbor 192.168.1.4 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 420
exit-address-family
Configuração do C9500-P
hostname C9500-P
!
interface Loopback0
ip address 192.168.1.3 255.255.255.255
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.6 255.255.255.252
!
interface TenGigabitEthernet1/0/2
no switchport
ip address 10.0.0.13 255.255.255.252
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
Configuração do C9300-CE-2
hostname C9300-PE-2
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.4 255.255.255.255
!
interface GigabitEthernet2/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.21 255.255.255.252
!
interface GigabitEthernet2/0/2
no switchport
ip address 10.0.0.14 255.255.255.252
!
router eigrp 400
!
address-family ipv4 vrf RED
network 10.0.0.20 0.0.0.3
autonomous-system 400
exit-address-family
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.2 remote-as 69420
neighbor192.168.1.2 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.2 activate
neighbor 192.168.1.2 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 400
exit-address-family
Configuração do C3850-CE-2
hostname C3850-CE-2
!
interface Loopback0
ip address 192.168.2.1 255.255.255.0
!
interface TenGigabitEthernet2/0/1
no switchport
ip address 10.0.0.22 255.255.255.252
!
router eigrp 400
network 10.0.0.20 0.0.0.3
network 192.168.2.0 0.0.0.255
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.21
Verificação básica
Antes da validação da programação MPLS, há requisitos básicos que precisam ser validados:
- A conectividade PE a PE está presente
- Validar o caminho comutado por rótulo (LSP) entre os PEs
- Validar adjacência de BGPv4 entre PEs
- Validar rótulos de VPNv4 e LDP
- Validar Tabela de Encaminhamento MPLS
Validar a conectividade PE a PE
Você pode fazer ping no loopback PE remoto e na origem do loopback local, mas isso não confirma se o LSP (Label Switched Path, caminho comutado por rótulo de MPLS) é bom, pois os endereços IP de loopback são anunciados na parte inferior.
C9300-PE-1#ping 192.168.1.4 source 192.168.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.4, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
Known via "ospf 420", distance 110, metric 3, type intra area
Last update from 10.0.0.10 on GigabitEthernet1/0/3, 00:55:58 ago
Routing Descriptor Blocks:
* 10.0.0.6, from 192.168.1.4, 00:55:58 ago, via GigabitEthernet1/0/2
Route metric is 3, traffic share count is 1
Validar o LSP
Você pode usar um traceroute MPLS do loopback PE para PE para validar o LSP e todos os rótulos LDP MPLS ao longo do caminho.
C9300-PE-1#traceroute mpls ipv4 192.168.1.4/32 source 192.168.1.2 Tracing MPLS Label Switched Path to 192.168.1.4/32, timeout is 2 seconds Codes: '!' - success, 'Q' - request not sent, '.' - timeout, 'L' - labeled output interface, 'B' - unlabeled output interface, 'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch, 'M' - malformed request, 'm' - unsupported tlvs, 'N' - no label entry, 'P' - no rx intf label prot, 'p' - premature termination of LSP, 'R' - transit router, 'I' - unknown upstream index, 'l' - Label switched with FEC change, 'd' - see DDMAP for return code, 'X' - unknown return code, 'x' - return code 0 Type escape sequence to abort. 0 10.0.0.5 MRU 1500 [Labels: 17 Exp: 0] L 1 10.0.0.6 MRU 1500 [Labels: explicit-null Exp: 0] 8 ms ! 2 10.0.0.14 2 ms
Se você não tiver acesso ao CE ou a um dispositivo atrás do CE e quiser demonstrar que há imposição/disposição de rótulo VPNv4 e LDP bem-sucedida, você pode tentar fazer ping a partir da interface voltada para CE no VRF em um PE para a outra interface voltada para CE no VRF no PE remoto.
C9300-PE-1#ping vrf RED 10.0.0.21 source 10.0.0.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.21, timeout is 2 seconds: Packet sent with a source address of 10.0.0.2 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms
Validar adjacência de VPNv4 de BGP entre PEs
C9300-PE-1#show bgp vpnv4 unicast all neighbors 192.168.1.4
BGP neighbor is 192.168.1.4, remote AS 69420, internal link
BGP version 4, remote router ID 192.168.1.4
BGP state = Established, up for 00:57:37
Last read 00:00:41, last write 00:00:41, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Address family VPNv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 6 6
Keepalives: 62 63
Route Refresh: 0 0
Total: 69 70
Do log neighbor state changes (via global configuration)
Default minimum time between advertisement runs is 0 seconds
<snip>
C9300-PE-2#show bgp vpnv4 unicast all neighbors 192.168.1.2
BGP neighbor is 192.168.1.2, remote AS 69420, internal link
BGP version 4, remote router ID 192.168.1.2
BGP state = Established, up for 01:01:00
Last read 00:00:13, last write 00:00:37, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Address family VPNv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 6 6
Keepalives: 67 66
Route Refresh: 0 0
Total: 74 73
Do log neighbor state changes (via global configuration)
Default minimum time between advertisement runs is 0 seconds
A adjacência remota de PE VPNv4 está ativa e um prefixo foi recebido
C9300-PE-1#show bgp vpnv4 unicast all summary BGP router identifier 192.168.1.2, local AS number 69420 BGP table version is 7, main routing table version 7 4 network entries using 1024 bytes of memory 4 path entries using 544 bytes of memory 4/4 BGP path/bestpath attribute entries using 1216 bytes of memory 4 BGP extended community entries using 1000 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 3784 total bytes of memory BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs 4 networks peaked at 16:19:10 Jun 1 2021 UTC (01:32:00.716 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 192.168.1.4 4 69420 108 108 7 0 0 01:34:52 2
C9300-PE-2#show bgp vpnv4 unicast all summary BGP router identifier 192.168.1.4, local AS number 69420 BGP table version is 7, main routing table version 7 4 network entries using 1024 bytes of memory 4 path entries using 544 bytes of memory 4/4 BGP path/bestpath attribute entries using 1216 bytes of memory 4 BGP extended community entries using 1000 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 3784 total bytes of memory BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs 4 networks peaked at 16:18:31 Jun 1 2021 UTC (01:37:30.404 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 192.168.1.2 4 69420 114 114 7 0 0 01:40:22 2
Verifique quais prefixos são trocados no VRF específico
C9300-PE-1#show ip bgp vpnv4 vrf RED
BGP table version is 10, local router ID is 192.168.1.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
*> 10.0.0.0/30 0.0.0.0 0 32768 ?
*>i 10.0.0.20/30 192.168.1.4 0 100 0 ?
*> 192.168.1.0 10.0.0.1 130816 32768 ?
*>i 192.168.2.0 192.168.1.4 130816 100 0 ?
C9300-PE-2#show ip bgp vpnv4 vrf RED
BGP table version is 9, local router ID is 192.168.1.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
*>i 10.0.0.0/30 192.168.1.2 0 100 0 ?
*> 10.0.0.20/30 0.0.0.0 0 32768 ?
*>i 192.168.1.0 192.168.1.2 130816 100 0 ?
*> 192.168.2.0 10.0.0.22 130816 32768 ?
Validar rótulos de VPNv4 e LDP:
Verifique o rótulo VPNv4 usado para acessar os prefixos no VRF
C9300-PE-1#show ip bgp vpnv4 vrf RED labels Network Next Hop In label/Out label Route Distinguisher: 69:69 (RED) 10.0.0.0/30 0.0.0.0 20/nolabel(RED) 10.0.0.20/30 192.168.1.4 nolabel/20 192.168.1.0 10.0.0.1 21/nolabel 192.168.2.1/32 192.168.1.4 nolabel/21 <-- VPNv4 label that is imposed to reach 192.168.2.0
C9300-PE-1#show ip route vrf RED 192.168.2.1
Routing Table: RED
Routing entry for 192.168.2.0/24
Known via "bgp 69420", distance 200, metric 130816, type internal
Last update from 192.168.1.4 01:31:56 ago
Routing Descriptor Blocks:
* 192.168.1.4 (default), from 192.168.1.4, 01:31:56 ago
Route metric is 130816, traffic share count is 1
AS Hops 0
MPLS label: 21 <-- VPNv4 label that matches the previous output
MPLS Flags: MPLS Required
C9300-PE-2#show ip bgp vpnv4 vrf RED labels Network Next Hop In label/Out label Route Distinguisher: 69:69 (RED) 10.0.0.0/30 192.168.1.2 nolabel/20 10.0.0.20/30 0.0.0.0 20/nolabel(RED) 192.168.1.0 192.168.1.2 nolabel/21 192.168.2.0. 10.0.0.22 21/nolabel <-- VPNv4 label that is advertised to reach 192.168.2.0 C9300-PE-2#show ip route vrf RED 192.168.2.1 Routing Table: RED Routing entry for 192.168.2.0/24 Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal Redistributing via eigrp 400, bgp 69420 Advertised by bgp 69420 Last update from 10.0.0.22 on GigabitEthernet2/0/1, 01:34:42 ago Routing Descriptor Blocks: * 10.0.0.22, from 10.0.0.22, 01:34:42 ago, via GigabitEthernet2/0/1 <-- CE-facing interface in the VRF Route metric is 130816, traffic share count is 1 Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit Reliability 255/255, minimum MTU 1500 bytes Loading 1/255, Hops 1
Verifique as etiquetas LDP utilizadas
C9300-PE-1#show mpls forwarding-table 192.168.1.4 Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 19 17 192.168.1.4/32 0 Gi1/0/2 10.0.0.6 <-- 17 is the LDP label imposed to reach PE at 192.168.1.4 through Gi1/0/2 C9300-PE-2#show mpls forwarding-table 192.168.1.2 Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 17 16 192.168.1.2/32 0 Gi2/0/2 10.0.0.13 <-- 16 is the LDP label imposed to reach PE at 192.168.1.4 through Gi2/0/2
Validar a Tabela de Encaminhamento MPLS
C9300-PE-1#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
16 Pop Label 192.168.1.3/32 0 Gi1/0/2 10.0.0.6
17 Pop Label 10.0.0.16/30 0 Gi1/0/2 10.0.0.6
18 Pop Label 10.0.0.12/30 0 Gi1/0/2 10.0.0.6
19 17 192.168.1.4/32 0 Gi1/0/2 10.0.0.6
20 No Label 10.0.0.0/30[V] 1982 aggregate/RED
21 No Label 192.168.3.0/24[V] \
0 Gi1/0/1 10.0.0.1
C9300-PE-2#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
16 Pop Label 192.168.1.3/32 0 Gi2/0/2 10.0.0.13
Pop Label 192.168.1.3/32 0 Gi2/0/3 10.0.0.17
17 16 192.168.1.2/32 164 Gi2/0/2 10.0.0.13
16 192.168.1.2/32 1224 Gi2/0/3 10.0.0.17
18 Pop Label 10.0.0.4/30 0 Gi2/0/2 10.0.0.13
Pop Label 10.0.0.4/30 0 Gi2/0/3 10.0.0.17
20 No Label 10.0.0.20/30[V] 0 aggregate/RED
21 No Label 192.168.2.0/24[V] \
1440 Gi2/0/1 10.0.0.22
Confirme os rótulos internos (VPNv4) e externos (LDP) usados para acessar cada prefixo especificado no VRF
C9300-PE-1#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.1/32, epoch 0, flags [rib defined all labels]
recursive via 192.168.1.4 label 21 <-- VPNv4 label
nexthop 10.0.0.6 GigabitEthernet1/0/2 label 17-(local:19) <-- 17 is the LDP label that is be imposed to reach the remote PE,
19 is the local LDP label advertised to the P router
C9300-PE-2#show ip cef vrf RED 192.168.3.0/24 detail
192.168.1.1/32, epoch 0, flags [rib defined all labels]
recursive via 192.168.1.2 label 22 <-- VPNv4 label
nexthop 10.0.0.13 GigabitEthernet2/0/2 label 16-(local:17) <-- 16 is the LDP label that is be imposed to reach the remote PE,
17 is the local LDP label advertised to the P router
Verificar Estatísticas do Object-Manager
Nos cenários ideais, não há objetos pendentes
C9300-PE-1#show platform software object-manager switch active f0 statistics Forwarding Manager Asynchronous Object Manager Statistics Object update: Pending-issue: 0, Pending-acknowledgement: 0 Batch begin: Pending-issue: 0, Pending-acknowledgement: 0 Batch end: Pending-issue: 0, Pending-acknowledgement: 0 Command: Pending-acknowledgement: 0 Total-objects: 491 Stale-objects: 0 Resolve-objects: 0 Childless-delete-objects: 0 Error-objects: 0 Paused-types: 0
9500-P#show platform software object-manager switch active f0 statistics Forwarding Manager Asynchronous Object Manager Statistics Object update: Pending-issue: 0, Pending-acknowledgement: 0 Batch begin: Pending-issue: 0, Pending-acknowledgement: 0 Batch end: Pending-issue: 0, Pending-acknowledgement: 0 Command: Pending-acknowledgement: 0 Total-objects: 491 Stale-objects: 0 Resolve-objects: 0 Childless-delete-objects: 0 Error-objects: 0 Paused-types: 0
C9300-PE-2#show platform software object-manager switch active f0 statistics Forwarding Manager Asynchronous Object Manager Statistics Object update: Pending-issue: 0, Pending-acknowledgement: 0 Batch begin: Pending-issue: 0, Pending-acknowledgement: 0 Batch end: Pending-issue: 0, Pending-acknowledgement: 0 Command: Pending-acknowledgement: 0 Total-objects: 482 Stale-objects: 0 Resolve-objects: 0 Childless-delete-objects: 0 Error-objects: 0 Paused-types: 0
Programação de prefixo
A próxima seção aborda a programação de prefixos nos roteadores MPLS, C9300-PE-1, C9500-P e C9300-PE-2.
Programação de prefixo C9300-PE-1
***Software Prefix Programming***
C9300-PE-1#show ip route vrf RED 192.168.2.1 Routing Table: RED Routing entry for 192.168.2.0/24 Known via "bgp 69420", distance 200, metric 130816, type internal Last update from 192.168.1.4 20:21:40 ago Routing Descriptor Blocks: * 192.168.1.4 (default), from 192.168.1.4, 20:21:40 ago <-- Remote PE reachable in the global routing table Route metric is 130816, traffic share count is 1 AS Hops 0 MPLS label: 21 <-- VPNv4 label MPLS Flags: MPLS Required
C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
Known via "ospf 420", distance 110, metric 3, type intra area
Last update from 10.0.0.6 on GigabitEthernet1/0/2, 21:27:11 ago
Routing Descriptor Blocks:
* 10.0.0.6, from 192.168.1.4, 21:27:11 ago, via GigabitEthernet1/0/2 <-- Next-hop 10.0.0.6 via Gi1/0/2 to reach
Route metric is 3, traffic share count is 1
***FMAN RP Prefix Programming***
C9300-PE-1#show ip vrf detail VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command Old CLI format, supports IPv4 only Flags: 0xC Interfaces: Gi1/0/1 Address family ipv4 unicast (Table ID = 0x2): Flags: 0x0 Export VPN route-target communities RT:69:69 Import VPN route-target communities RT:69:69 No import route-map No global export route-map No export route-map VRF label distribution protocol: not configured VRF label allocation mode: per-prefix
C9300-PE-1#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 <-- Index value is the VRF ID from previous command Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.2.0/24 OBJ_LABEL 0x14 C9300-PE-1#show platform software mpls switch active r0 label index 0x14 <-- Utilize the Index value from previous command Label OCE 0x14 -> OBJ_LABEL (0x17) <-- Utilized in next command Flags: Real, Number of labels in the OCE: 1 Label values: 0x15 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480636fb0 C9300-PE-1#show platform software mpls switch active r0 label index 0x17 <-- Utilize the OBJ_LABEL value from previous command Label OCE 0x17 -> OBJ_ADJACENCY (0x46) <-- Utilized in next command Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348062f858 C9300-PE-1#show platform software adjacency switch active r0 index 0x46 <-- Utilize the OBJ_ADJACENCY value from previous command Number of adjacency objects: 6 Adjacency id: 0x46 (70) Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG <-- Egress interface Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 <-- MAC ending in DDE4 is the DMAC, MAC ending in D1D6 is SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.6 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x3480636280
***FMAN FP Prefix Programming*** C9300-PE-1#show ip vrf detail VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command Old CLI format, supports IPv4 only Flags: 0xC Interfaces: Gi1/0/1 Address family ipv4 unicast (Table ID = 0x2): Flags: 0x0 Export VPN route-target communities RT:69:69 Import VPN route-target communities RT:69:69 No import route-map No global export route-map No export route-map VRF label distribution protocol: not configured VRF label allocation mode: per-prefix C9300-PE-1#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 detail <-- Index value is the VRF ID from previous command Forwarding Table 192.168.2.0/24 -> OBJ_LABEL (0x14), urpf: 15 <-- Utilized in next command Prefix Flags: unknown aom id: 648, HW handle: (nil) (created) C9300-PE-1#show platform software mpls switch active f0 label index 0x14 <-- Utilize the OBJ_LABEL value from the previous command Label OCE 0x14 -> OBJ_LABEL (0x17) <-- Utilized in next command Flags: Real, Number of labels in the OCE: 1 Label values: 0x15 Backup flags: Pop, UHP, backup label 0x100001 aom id: 647, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software mpls switch active f0 label index 0x17 <-- Utilize the OBJ_LABEL value from the previous command Label OCE 0x17 -> OBJ_ADJACENCY (0x46) <-- Utilized in next command Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 aom id: 664, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software adjacency switch active f0 index 0x46 <-- Utilize the OBJ_ADJACENCY value from the previous command Number of adjacency objects: 6 Adjacency id: 0x46 (70) Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG <-- Egress interface Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 <-- MAC ending in DDE4 is the DMAC, MAC ending in D1D6 is SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.6 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 522, HW handle: (nil) (created)
***FED Prefix Programming***
C9300-PE-1#show platform software fed switch active ip route vrf-name RED 192.168.2.0/24 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 2 192.168.2.0/24 0x7feeeca12bb8 0x0 0 0 lspa0x2 2021/06/14 17:13:59.644 <-- HTM value significant for next command FIB: prefix_hdl:0x5000002a, mpls_ecr_prefix_hdl:0 ========== OCE chain ===== LABEL:objid:20 link_type:MPLS local_label:1048577 outlabel:(21, 0) <-- VPNv4 Label flags:0x1:(REAL,) pdflags:0x80:(INSTALL_HW_OK,RECIR_ADJ,) adj_handle:0x5100003d <-- adj_handle and local_adj_hdl values must match unsupported recursion:0 olbl_changed 0 local_adj:1 modify_cnt:1 bwalk_cnt:0 subwalk_cnt:1 collapsed_oce:0 AAL: id:1358954557 lbl:19 smac:0000.0000.0000 dmac:0000.0000.0000 <-- Label 19 matches the local transport label sub_type:0 link_type:0 adj_flags:0x10 label_type:0 rewrite_type:PSH2(121) vlan_id:0 vrf_id:0 ri:0x7feeeca9acf8, ri_id:0x46 phdl:0, ref_cnt:2 <-- ri_id and ri_idx values must match si:0x7feeeca6ab98, si_id:0xb6, di_id:0x5013 LABEL:objid:23 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Label 19 is the local transport label, Label 17 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x50000034 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1342177332 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4 <-- Matches the next-hop information to reach 192.168.2.0/24 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7feeecd6d238, ri_id:0x3e phdl:0x9f00004b, ref_cnt:1 si:0x7feeecd706d8, si_id:0x4013, di_id:0x535f <-- di_id utilized in subsequent commands ADJ:objid:70 {link_type:MPLS ifnum:0x36, si:0x94000021, } =============== MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0xab000003 AAL:LSPA: id:2868903939 num_path:1 prefix_id:0x2 delete_hw_hdl_cnt:0 cookie[64]: 15000000000000000000000000000000000000000000000000000000000000004600000000000000000000000000000000000000000000000000000000000000 status:ok vpn_lbl:21 local_adj_hdl:0x5100003d hw_hdl:0x7feeecab2d48 ri_idx:0x46 <-- vpn_lbl matches the VPNv4 label,adj_handle and local_adj_hdl values must match,ri_id and ri_idx values must match =============== C9300-PE-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7feeeca12bb8 1 <-- Utilize HTM value from previous command Handle:0x7feeeca12bb8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7feeeca2af28 Features sharing this resource:Cookie length: 12 01 02 a8 c0 00 00 02 d0 07 00 00 00 Detailed Resource Information (ASIC# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7feeeca2af28) Absolute Index: 66036 Time Stamp: 160003 KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0 MASK - vrf:0 mtr:0 prefix:0.0.0.255 rcp_redirect_index:0x0 FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:182 destined_to_us:0 hw_stats_idx:0 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0x2 SRC-AD = learning_violation:0 need_to_learn:0 locally_connected:0 staticentryViolation:0 rpfValid:1 rpfLe:0 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:0 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0 port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0 ============================================================== C9300-PE-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x535f 0x535f <-- Utilize the di_id from the previous command ASIC#0: index = 0x535f pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x535f pmap = 0x00000000 0x00000002 <-- Looking at 0x00000002, in binary that is 0000 0000 0000 0000 0000 0000 0000 0010 = Port 1 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9300-PE-1#show plat soft fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet1/0/2 0x36 1 0 1 1 0 6 7 2 2 NIF Y <-- Port 1 is the egress port, Gi1/0/2
Programação de prefixo C9500-P
***Software Prefix Programming***
C9500-P#show ip route 192.168.1.4 Routing entry for 192.168.1.4/32 Known via "ospf 420", distance 110, metric 2, type intra area Last update from 10.0.0.14 on TenGigabitEthernet1/0/2, 1d21h ago Routing Descriptor Blocks: * 10.0.0.14, from 192.168.1.4, 1d21h ago, via TenGigabitEthernet1/0/2 <-- Next-hop to reach 192.168.1.4 Route metric is 2, traffic share count is 1 C9500-P#show ip cef 192.168.1.4 detail 192.168.1.4/32, epoch 4 dflt local label info: global/17 [0x3] nexthop 10.0.0.14 TenGigabitEthernet1/0/2 label explicit-null-(local:17)
***FMAN RP Prefix Programming*** C9500-P#show platform software ip switch active r0 cef prefix 192.168.1.4/32 Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.1.4/32 OBJ_LABEL 0x16 <-- Value used in next command C9500-P#show platform software mpls switch active r0 label index 0x16 <-- Utilize the OBJ_LABEL value from previous command Label OCE 0x16 -> OBJ_ADJACENCY (0x49) <-- Value used in next command Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x34806492f0 C9500-P#show platform software adjacency switch active r0 index 0x49 <-- Utilize OBJ_ADJACENCY value from previous command Number of adjacency objects: 8 Adjacency id: 0x49 (73) Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending in DDD6 is the SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.14 <-- Next-hop IP IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x3480647760
***FMAN FP Prefix Programming*** C9500-P#show platform software ip switch active f0 cef prefix 192.168.1.4/32 detail Forwarding Table 192.168.1.4/32 -> OBJ_LABEL (0x16), urpf: 21 <-- Used in subsequent command Prefix Flags: unknown aom id: 567, HW handle: (nil) (created) C9500-P#show platform software mpls switch active f0 label index 0x16 <-- Utilize the OBJ_LABEL value from previous command Label OCE 0x16 -> OBJ_ADJACENCY (0x49) <-- Used in subsequent command Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 589, CPP handle: 0xdeadbeef (created) C9500-P#show platform software adjacency switch active f0 index 0x49 <-- Utilize the OBJ_ADJACENCY from previous command Number of adjacency objects: 8 Adjacency id: 0x49 (73) Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending in DDD6 is the SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.14 <-- Next-hop IP IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 535, HW handle: (nil) (created)
*** FED Prefix Programming*** C9500-P#show platform software fed switch active ip route 192.168.1.4/32 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 0 192.168.1.4/32 0x7f790c4cf0e8 0x0 0 0 2021/06/14 22:10:54.150 <-- HTM value significant for next command FIB: prefix_hdl:0x6a000020, mpls_ecr_prefix_hdl:0 ========== OCE chain ===== LABEL:objid:22 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xb9000037 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:3103785015 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 <-- Matches the next-hop information to reach 192.168.1.4/32 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f790c4cdfd8, ri_id:0x38 phdl:0x76000058, ref_cnt:1 si:0x7f790c4c22f8, si_id:0x400b, di_id:0x2 <-- di_id utilized in subsequent commands ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x2d000027, } =============== MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0 =============== C9500-P#show platform hardware fwd-asic abstraction print-resource-handle 0x7f790c4cf0e8 1 <-- Utilize the HTM value from previous command Handle:0x7f790c4cf0e8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f790c4cf2f8 Features sharing this resource:Cookie length: 12 04 01 a8 c0 00 00 00 d0 07 00 00 00 Detailed Resource Information (ASIC# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7f790c4cf2f8) Absolute Index: 126650 Time Stamp: 40 KEY - vrf:0 mtr:0 prefix:192.168.1.4 rcp_redirect_index:0x0 MASK - vrf:0 mtr:0 prefix:0.0.0.0 rcp_redirect_index:0x0 FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:16395 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0 SRC-AD = learning_violation:0 need_to_learn:0 locally_connected:0 staticentryViolation:0 rpfValid:1 rpfLe:38 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0 port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0 ============================================================== C9500-P#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x2 0x2 <-- Utilize the di_id value from the previous command ASIC#0: index = 0x2 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x2 pmap = 0x00000000 0x00000002 <-- 0x00000002 in binary is 0000 0000 0000 0000 0000 0000 0000 = Port 1 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9500-P#show platform software fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active TenGigabitEthernet1/0/2 0x42 1 0 1 1 0 10 1 2 2 NIF Y <-- Port 1 is the egress port, TenGig1/0/2
Programação de prefixo C9300-PE-2
***Software Prefix Programming***
C9300-PE-2#show ip route vrf RED 192.168.2.1 Routing Table: RED Routing entry for 192.168.2.0/24 Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal Redistributing via eigrp 400, bgp 69420 Advertised by bgp 69420 Last update from 10.0.0.22 on GigabitEthernet2/0/1, 1d21h ago Routing Descriptor Blocks: * 10.0.0.22, from 10.0.0.22, 1d21h ago, via GigabitEthernet2/0/1 <-- Next-hop reachable in the VRF Route metric is 130816, traffic share count is 1 Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit Reliability 255/255, minimum MTU 1500 bytes Loading 1/255, Hops 1 C9300-PE-2#show ip route vrf RED 10.0.0.22 Routing Table: RED Routing entry for 10.0.0.20/30 Known via "connected", distance 0, metric 0 (connected, via interface) Redistributing via eigrp 400, bgp 69420 Advertised by bgp 69420 Routing Descriptor Blocks: * directly connected, via GigabitEthernet2/0/1 <-- Next-hop directly connected Route metric is 0, traffic share count is 1 C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail 192.168.2.0/24, epoch 0 QOS: Precedence routine (0) dflt local label info: other/21 [0x2] nexthop 10.0.0.22 GigabitEthernet2/0/1
***FMAN RP Prefix Programming*** C9300-PE-2#show ip vrf detail VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command Old CLI format, supports IPv4 only Flags: 0xC Interfaces: Gi2/0/1 Address family ipv4 unicast (Table ID = 0x2): Flags: 0x0 Export VPN route-target communities RT:69:69 Import VPN route-target communities RT:69:69 No import route-map No global export route-map No export route-map VRF label distribution protocol: not configured VRF label allocation mode: per-prefix C9300-PE-2#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.2.0/24 OBJ_ADJACENCY 0x19 C9300-PE-2#show platform software adjacency switch active r0 index 0x19 <-- Utilize the Index value from previous command Number of adjacency objects: 6 Adjacency id: 0x19 (25) Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 <-- MAC ending in C9C2 is DMAC, MAC ending in AE42 is SMAC, 0x800 is the IP ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: no-l3-inject Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.22 IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x348062f118
***FMAN FP Prefix Programming*** C9300-PE-2#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 detail Forwarding Table 192.168.2.0/24 -> OBJ_ADJACENCY (0x19), urpf: 30 <-- Utilized in next command Prefix Flags: unknown aom id: 665, HW handle: (nil) (created) QPPB precedence: 0 C9300-PE-2#show platform software adjacency switch active f0 index 0x19 <-- Utilize the OBJ_ADJACENCY from previous command Number of adjacency objects: 6 Adjacency id: 0x19 (25) Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: no-l3-inject Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.22 IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 659, HW handle: (nil) (created)
***FED Prefix Programming*** C9300-PE-2#show platform software fed switch active ip route vrf-name RED 192.168.2.0/24 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 2 192.168.2.0/24 0x7f7fb4a25648 0x0 0 0 2021/06/14 17:04:13.460 <-- HTM value significant for next command FIB: prefix_hdl:0x6e00002a, mpls_ecr_prefix_hdl:0 ========== OCE chain ===== ADJ:objid:25 {link_type:IP ifnum:0x35, si:0x3300003e, IPv4: 10.0.0.22 } =============== MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0 =============== C9300-PE-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f7fb4a25648 1 <-- Utilize HTM value from previous command Handle:0x7f7fb4a25648 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f7fb4a10e58 Features sharing this resource:Cookie length: 12 01 02 a8 c0 00 00 02 d0 07 00 00 00 Detailed Resource Information (ASIC# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7f7fb4a10e58) Absolute Index: 66036 Time Stamp: 164911 KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0 MASK - vrf:0 mtr:0 prefix:0.0.0.255 rcp_redirect_index:0x0 FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:182 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0 SRC-AD = learning_violation:0 need_to_learn:0 locally_connected:0 staticentryViolation:0 rpfValid:1 rpfLe:37 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0 port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0 ============================================================== C9300-PE-2#show platform software fed switch active ip adj IPV4 Adj entries dest if_name dst_mac si_hdl ri_hdl pd_flags adj_id Last-modified ---- ------- ------- ------ ------ -------- ----- ------------------------ 10.0.0.22 GigabitEthernet2/0/1 0072.78c8.c9c2 0x7f7fb4a44048 0x7f7fb4b089d8 0x0 0x19 2021/06/14 16:59:43.447 <-- si_hdl used in next command C9300-PE-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f7fb4a44048 1 <-- Utilize the si_hdl value from previous command Handle:0x7f7fb4a44048 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1 priv_ri/priv_si Handle: 0x7f7fb4b089d8Hardware Indices/Handles: index0:0xb6 mtu_index/l3u_ri_index0:0x0 index1:0xb6 mtu_index/l3u_ri_index1:0x0 Features sharing this resource:66 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 25 00 00 00 00 00 00 00 00 00 00 00 08 00 00 72 78 c8 c9 c2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Detailed Resource Information (ASIC# 0) ---------------------------------------- Station Index (SI) [0xb6] RI = 0x2b DI = 0x5338 stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: CD Detailed Resource Information (ASIC# 1) ---------------------------------------- Station Index (SI) [0xb6] RI = 0x2b DI = 0x5338 stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD ============================================================== C9300-PE-2#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5338 0x5338 <-- Utilize the DI value from previous command ASIC#0: index = 0x5338 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x5338 pmap = 0x00000000 0x00000001 <-- 0x00000001 in binary is 0000 0000 0000 0000 0000 0000 0000 0001 = Port 0 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9300-PE-2#show platform software fed switch active ifm map Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet2/0/1 0x35 1 0 1 0 0 26 6 1 97 NIF Y <-- Port 0 is the egress port, Gi2/0/1
Programação de rótulo do VPNv4
A próxima seção aborda a programação de rótulos de VPNv4 nos roteadores PE MPLS, C9300-PE-1 e C9300-PE-2. O C9500 não encaminha no rótulo do VPNv4, portanto, não há saída do C9500.
Programação de etiquetas de VPNv4 do C9300-PE-1:
Verifique o prefixo local no PE, não o prefixo remoto.
***Software VPNv4 Label Programming***
C9300-PE-1#show ip cef vrf RED 192.168.3.0/24 detail 192.168.3.0/24, epoch 0 QOS: Precedence routine (0) dflt local label info: other/22 [0x2] <-- VPNv4 label associated with the local prefix nexthop 10.0.0.1 GigabitEthernet1/0/1
*** FMAN RP VPNv4 Label Programming*** C9300-PE-1#show platform software mpls switch active r0 eos index 24 <-- Utilize the objid from the FED command EOS Choice 0x18, Number of paths: 2 Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL Next Object Index: 0,0x17 OM handle: 0x3480631760
***FMAN FP VPNv4 Label Programming*** C9300-PE-1#show platform software mpls switch active f0 eos index 24 <-- Utilize the objid from the FED command EOS Choice 0x18, Number of paths: 2 Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL Next Object Index: 0,0x17 aom id: 5748, CPP handle: 0xdeadbeef (created), flags: 0 <-- Utilized in subsequent command C9300-PE-1#show platform software object-manager switch active f0 object 5748 <-- Utilize the aom id from previous command Object identifier: 5748 Description: EOS Choice 0x18 Status: Done, Epoch: 0, Client data: 0x63150908 C9300-PE-1#show platform software object-manager switch active f0 object 5748 parents <-- Utilize the aom id Object identifier: 7 Description: Special Object adj_drop Status: Done Object identifier: 5746 Description: label 0x17 Status: Done
***FED VPNv4 Label Programming*** C9300-PE-1#show platform software fed switch active mpls forwarding label 22 detail LENTRY:label:22 nobj:(EOS, 24) lentry_hdl:0x800000a modify_cnt:1 backwalk_cnt:0 lspa_handle:0 AAL: id:134217738 lbl:22 eos0:[adj_hdl:0, hw_hdl:0x7fa4c4d72e08] eos1:[adj_hdl:0x6e00003e, hw_hdl:0x7fa4c4d72c58] deagg_vrf_id = 0 lspa_handle:0 EOS:objid:24 local_label:0 flags:0:() pdflags:0 <-- Utilized in previous commands nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 23) modify:0 bwalk:0 LABEL:objid:23 link_type:IP local_label:22 outlabel:(1048577, 0) flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0x6e00003e unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1845493822 lbl:0 smac:a0f8.4911.d1e4 dmac:0072.78c8.06e4 sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135) vlan_id:0 vrf_id:0 ri:0x7fa4c4a81af8, ri_id:0x44 phdl:0xf1000024, ref_cnt:1 si:0x7fa4c4d83da8, si_id:0x4012, di_id:0x5338 ADJ:objid:113 {link_type:IP ifnum:0x35, si:0x2000003a, IPv4: 10.0.0.1 }
Verifique o rótulo VPNv4 C9300-PE-2:
Verifique o prefixo local para o PE, não o prefixo remoto
***Software VPNv4 Label Programming***
C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail 192.168.2.0/24, epoch 0 QOS: Precedence routine (0) dflt local label info: other/21 [0x2] <-- VPNv4 label associated with local prefix nexthop 10.0.0.22 GigabitEthernet2/0/1
*** FMAN RP VPNv4 Label Programming*** C9300-PE-2#show platform software mpls switch active r0 eos index 61 <-- Use the objid from the FED command EOS Choice 0x3d, Number of paths: 2 Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL Next Object Index: 0,0x3b OM handle: 0x348063f2f8
*** FMAN FP VPNv4 Label Programming*** C9300-PE-2#show platform software mpls switch active f0 eos index 61 <-- Use the objid from the FED command EOS Choice 0x3d, Number of paths: 2 Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL Next Object Index: 0,0x3b aom id: 3541, CPP handle: 0xdeadbeef (created), flags: 0 <-- Utilized in subsequent command C9300-PE-2#show platform software object-manager switch active f0 object 3541 <-- Use the aom id from previous command Object identifier: 3541 Description: EOS Choice 0x3d Status: Done, Epoch: 0, Client data: 0x11079188 C9300-PE-2#show platform software object-manager switch active f0 object 3541 parents <-- Use the aom id from previous command Object identifier: 7 Description: Special Object adj_drop Status: Done Object identifier: 3540 Description: label 0x3b Status: Done
*** FED VPNv4 Label Programming*** C9300-PE-2#show platform software fed switch active mpls forwarding label 21 detail LENTRY:label:21 nobj:(EOS, 61) lentry_hdl:0x69000009 modify_cnt:3 backwalk_cnt:0 lspa_handle:0 AAL: id:1761607689 lbl:21 eos0:[adj_hdl:0, hw_hdl:0x7fe8f8a71bd8] eos1:[adj_hdl:0x49000040, hw_hdl:0x7fe8f8a72458] deagg_vrf_id = 0 lspa_handle:0 EOS:objid:61 local_label:0 flags:0:() pdflags:0 <-- Utilized in previous commands nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 59) modify:0 bwalk:0 LABEL:objid:59 link_type:IP local_label:21 outlabel:(1048577, 0) flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0x49000040 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1224736832 lbl:0 smac:70d3.79be.ae42 dmac:0072.78c8.c9c2 sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135) vlan_id:0 vrf_id:0 ri:0x7fe8f8a8ab98, ri_id:0x44 phdl:0xf1000024, ref_cnt:1 si:0x7fe8f8a6ae08, si_id:0x4006, di_id:0x5338 ADJ:objid:25 {link_type:IP ifnum:0x35, si:0x800003e, IPv4: 10.0.0.22 }
Programação de etiqueta LDP
A próxima seção aborda a programação de rótulo de LDP nos roteadores MPLS, C9300-PE-1, C9500-P e C9300-PE-2.
O rótulo LDP (externo) é o que o rótulo de rede MPLS comuta os pacotes. Valide o rótulo LDP local anunciado ao PE remoto. Não valide o rótulo LDP remoto.
Programação de etiqueta LDP do C9300-PE-1:
Valide o rótulo LDP local anunciado ao PE remoto, não valide o rótulo LDP remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
***Software LDP Label Programming***
C9300-PE-1#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 Pop Label 192.168.1.3/32 0 Gi1/0/2 10.0.0.6 18 Pop Label 10.0.0.12/30 0 Gi1/0/2 10.0.0.6 19 17 192.168.1.4/32 0 Gi1/0/2 10.0.0.6 <-- LDP Label 19 is advertised to Remote PE 192.168.1.4, validate LDP label 19 20 No Label 10.0.0.0/30[V] 1890 aggregate/RED 22 No Label 192.168.3.0/24[V] \ 1982 Gi1/0/1 10.0.0.1
***FMAN RP LDP Label Programming*** C9300-PE-1#show platform software mpls switch active r0 label index 59 Label OCE 0x3b -> OBJ_ADJACENCY (0x46) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x34805f3dc8 ***FMAN FP LDP Label Programming*** C9300-PE-1#show platform software mpls switch active f0 label index 59 Label OCE 0x3b -> OBJ_ADJACENCY (0x46) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 aom id: 7065, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software object-manager switch active f0 object 7065 Object identifier: 7065 Description: label 0x3b Status: Done, Epoch: 0, Client data: 0x63152218 C9300-PE-1#show platform software object-manager switch active f0 object 7065 parents Object identifier: 511 Description: adj 0x46, Flags None Status: Done ***FED LDP Label Programming***
C9300-PE-1#show platform software fed switch active mpls forwarding label 19 detail LENTRY:label:19 nobj:(LABEL, 59) lentry_hdl:0xef000007 modify_cnt:7 backwalk_cnt:0 lspa_handle:0 AAL: id:4009754631 lbl:19 eos0:[adj_hdl:0x91000056, hw_hdl:0x7fa4c4d6cae8] eos1:[adj_hdl:0x91000056, hw_hdl:0x7fa4c4d6c8e8] deagg_vrf_id = 0 lspa_handle:0 LABEL:objid:59 link_type:MPLS local_label:19 outlabel:(17, 0) flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x91000056 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:2432696406 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7fa4c4d75fa8, ri_id:0x26 phdl:0x9f00004b, ref_cnt:1 si:0x7fa4c4d5f6c8, si_id:0x4013, di_id:0x535f ADJ:objid:70 {link_type:MPLS ifnum:0x36, si:0x25000021, }
Programação de etiqueta LDP do C9500:
Valide o rótulo LDP local anunciado ao PE remoto, não valide o rótulo LDP remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
***Software LDP Label Programming***
C9500-P#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 explicit-n 192.168.1.2/32 23409 Te1/0/1 10.0.0.5 <-- LDP label 16 is advertised to reach PE 192.168.1.2 17 explicit-n 192.168.1.4/32 23345 Te1/0/2 10.0.0.14 <-- LDP label 17 is advertised to reach PE 192.168.1.4
***FMAN RP LDP Label Programming*** C9500-P#show platform software mpls switch active r0 label index 23 <-- Use the obj id from the FED command Label OCE 0x17 -> OBJ_ADJACENCY (0x3f) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480645150 ***FMAN FP LDP Label Programming*** C9500-P#show platform software mpls switch active f0 label index 23 <-- Use the obj id from the FED command Label OCE 0x17 -> OBJ_ADJACENCY (0x3f) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 654, CPP handle: 0xdeadbeef (created) C9500-P#show platform software object-manager switch active f0 object 654 <-- Use the aom id from the previous command Object identifier: 654 Description: label 0x17 Status: Done, Epoch: 0, Client data: 0x4b41c08 C9500-P#show platform software object-manager switch active f0 object 654 parents <-- Use the aom id from the previous command Object identifier: 515 Description: adj 0x3f, Flags None Status: Done
***FED LDP Label Programming*** C9500-P#show platform software fed switch active mpls forwarding label 16 detail LENTRY:label:16 nobj:(LABEL, 23) lentry_hdl:0xec000004 modify_cnt:6 backwalk_cnt:0 lspa_handle:0 AAL: id:3959422980 lbl:16 eos0:[adj_hdl:0xc3000055, hw_hdl:0x7f28944be3c8] eos1:[adj_hdl:0xc3000055, hw_hdl:0x7f28944be1b8] deagg_vrf_id = 0 lspa_handle:0 LABEL:objid:23 link_type:MPLS local_label:16 outlabel:(0, 0) <-- Utilized in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xc3000055 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:3271557205 lbl:0 smac:d4ad.71b5.dde4 dmac:a0f8.4911.d1d6 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f289449bf88, ri_id:0x44 phdl:0xe9000057, ref_cnt:1 si:0x7f2894489b58, si_id:0x4009, di_id:0x1 ADJ:objid:63 {link_type:MPLS ifnum:0x41, si:0x57000023, }
***Software LDP Label Programming*** C9500-P#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 explicit-n 192.168.1.2/32 23409 Te1/0/1 10.0.0.5 17 explicit-n 192.168.1.4/32 23345 Te1/0/2 10.0.0.14
***FMAN RP LDP Label Programming*** C9500-P#show platform software mpls switch active r0 label index 64 <-- Use the obj id from the FED command Label OCE 0x40 -> OBJ_ADJACENCY (0x49) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480641d08
***FMAN FP LDP Label Programming*** C9500-P#show platform software mpls switch active f0 label index 64 <-- Use the obj id from the FED command Label OCE 0x40 -> OBJ_ADJACENCY (0x49) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 657, CPP handle: 0xdeadbeef (created) C9500-P#show platform software object-manager switch active f0 object 657 <-- Use the aom id value from previous command Object identifier: 657 Description: label 0x40 Status: Done, Epoch: 0, Client data: 0x4b523f8 C9500-P#show platform software object-manager switch active f0 object 657 parents<-- Use the aom id value from previous command Object identifier: 535 Description: adj 0x49, Flags None Status: Done
***FED LDP Label Programming*** C9500-P#show platform software fed switch active mpls forwarding label 17 detail LENTRY:label:17 nobj:(LABEL, 64) lentry_hdl:0x8d000005 modify_cnt:6 backwalk_cnt:0 lspa_handle:0 AAL: id:2365587461 lbl:17 eos0:[adj_hdl:0xcc000037, hw_hdl:0x7f2894480438] eos1:[adj_hdl:0xcc000037, hw_hdl:0x7f2894480228] deagg_vrf_id = 0 lspa_handle:0 LABEL:objid:64 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Utilized in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xcc000037 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:3422552119 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f2894498008, ri_id:0x38 phdl:0x76000058, ref_cnt:1 si:0x7f2894498478, si_id:0x400b, di_id:0x2 ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x3d000027, }
Programação de etiqueta LDP do C9300-PE-2:
Valide o rótulo LDP local anunciado ao PE remoto, não valide o rótulo LDP remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
***Software LDP Label Programming***
C9300-PE-2#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 Pop Label 192.168.1.3/32 0 Gi2/0/2 10.0.0.13 17 16 192.168.1.2/32 630 Gi2/0/2 10.0.0.13 <-- LDP label 17 is advertised to Remote PE 192.168.1.2 18 Pop Label 10.0.0.4/30 0 Gi2/0/2 10.0.0.13 20 No Label 10.0.0.20/30[V] 1260 aggregate/RED 21 No Label 192.168.2.0/24[V] \ 2070 Gi2/0/1 10.0.0.22 C9300-PE-2#show platform software mpls switch active r0 label index 82 <-- Utilize the obj id value from the FED Command Label OCE 0x52 -> OBJ_ADJACENCY (0x46) Flags: Real, Number of labels in the OCE: 1 Label values: 0x10 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348063ad00 C9300-PE-2#show platform software mpls switch active f0 label index 82 <-- Utilize the obj id value from the FED Command Label OCE 0x52 -> OBJ_ADJACENCY (0x46) Flags: Real, Number of labels in the OCE: 1 Label values: 0x10 Backup flags: Pop, UHP, backup label 0x100001 aom id: 3624, CPP handle: 0xdeadbeef (created) <-- Used in next commands C9300-PE-2#show platform software object-manager switch active f0 object 3624 <-- Utilize the aom id value Object identifier: 3624 Description: label 0x52 Status: Done, Epoch: 0, Client data: 0x11071668 C9300-PE-2#show platform software object-manager switch active f0 object 3624 parents <-- Utilize the aom id value Object identifier: 496 Description: adj 0x46, Flags None Status: Done C9300-PE-2#show platform software fed switch active mpls forwarding label 17 detail LENTRY:label:17 nobj:(LABEL, 82) lentry_hdl:0x44000005 modify_cnt:6 backwalk_cnt:0 lspa_handle:0 AAL: id:1140850693 lbl:17 eos0:[adj_hdl:0x5f000032, hw_hdl:0x7fe8f8a52798] eos1:[adj_hdl:0x5f000032, hw_hdl:0x7fe8f8a52588] deagg_vrf_id = 0 lspa_handle:0 LABEL:objid:82 link_type:MPLS local_label:17 outlabel:(16, 0) <-- Used in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x5f000032 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1593835570 lbl:0 smac:70d3.79be.ae71 dmac:d4ad.71b5.ddd6 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7fe8f8a93c78, ri_id:0x3a phdl:0x9f00004b, ref_cnt:1 si:0x7fe8f8a91188, si_id:0x4011, di_id:0x535f ADJ:objid:70 {link_type:MPLS ifnum:0x36, si:0xaa000021, }
Cenário 2. L3VPN com ECMP entre PEs e roteadores P
Topologia de referência
Para o propósito deste exemplo, os switches Catalyst 3850 funcionam como dispositivos CE, os switches Catalyst 9300 funcionam como dispositivos PE, o Catalyst 9500 na função Virtual Stackwise como o dispositivo P. O EIGRP é executado entre os dispositivos CE e PE, OSPF e adjacências LDP no núcleo MPLS, com uma adjacência de VPNv4 do iBGP entre os dispositivos PE. No núcleo do MPLS, há ECMP entre os dispositivos PE e P.
Detalhes da configuração
Configuração do C3850-CE-1
hostname C3850-CE-1
!
interface Loopback0
ip address 192.168.3.1 255.255.255.0
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.1 255.255.255.252
!
router eigrp 420
network 10.0.0.0 0.0.0.3
network 192.168.3.0
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.2
Configuração do C9300-PE-1
hostname C9300-PE-1
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.2 255.255.255.255
!
interface GigabitEthernet1/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.2 255.255.255.252
!
interface GigabitEthernet1/0/2
no switchport
ip address 10.0.0.5 255.255.255.252
!
interface GigabitEthernet1/0/3
no switchport
ip address 10.0.0.9 255.255.255.252
!
router eigrp 420
!
address-family ipv4 vrf RED
network 10.0.0.0 0.0.0.3
autonomous-system 420
exit-address-family
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.4 remote-as 69420
neighbor 192.168.1.4 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.4 activate
neighbor 192.168.1.4 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 420
exit-address-family
Configuração do C9500-P
hostname C9500-P
!
interface Loopback0
ip address 192.168.1.3 255.255.255.255
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.6 255.255.255.252
!
interface TenGigabitEthernet1/0/2
no switchport
ip address 10.0.0.13 255.255.255.252
!
interface TenGigabitEthernet2/0/1
no switchport
ip address 10.0.0.10 255.255.255.252
!
interface TenGigabitEthernet2/0/2
no switchport
ip address 10.0.0.17 255.255.255.252
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
Configuração do C9300-PE-2
hostname C9300-PE-2
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.4 255.255.255.255
!
interface GigabitEthernet2/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.21 255.255.255.252
!
interface GigabitEthernet2/0/2
no switchport
ip address 10.0.0.14 255.255.255.252
!
interface GigabitEthernet2/0/3
no switchport
ip address 10.0.0.18 255.255.255.252
!
router eigrp 400
!
address-family ipv4 vrf RED
network 10.0.0.20 0.0.0.3
autonomous-system 400
exit-address-family
!
router ospf 420
passive-interface GigabitEthernet2/0/24
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.2 remote-as 69420
neighbor 192.168.1.2 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.2 activate
neighbor 192.168.1.2 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 400
exit-address-family
Configuração do C3850-CE-2
hostname C3850-CE-2
!
interface Loopback0
ip address 192.168.2.1 255.255.255.0
!
interface TenGigabitEthernet2/0/1
no switchport
ip address 10.0.0.22 255.255.255.252
!
router eigrp 400
network 10.0.0.20 0.0.0.3
network 192.168.2.0
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.21
Validação básica
Antes da validação da programação MPLS, há requisitos básicos que precisam ser validados:
- A conectividade PE a PE está presente
- Validar o caminho comutado por rótulo (LSP) entre os PEs
- Validar adjacência de BGPv4 entre PEs
- Validar rótulos de VPNv4 e LDP
- Validar Tabela de Encaminhamento MPLS
Validar conectividade PE a PE
Você pode fazer ping no loopback PE remoto e na origem do loopback local, mas isso não confirma se o LSP (Label Switched Path, caminho comutado por rótulo de MPLS) é bom, pois os endereços IP de loopback são anunciados na parte inferior.
C9300-PE-1#ping 192.168.1.4 source 192.168.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.4, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
Known via "ospf 420", distance 110, metric 3, type intra area
Last update from 10.0.0.10 on GigabitEthernet1/0/3, 18:39:30 ago
Routing Descriptor Blocks:
10.0.0.10, from 192.168.1.4, 18:39:30 ago, via GigabitEthernet1/0/3
Route metric is 3, traffic share count is 1
* 10.0.0.6, from 192.168.1.4, 18:39:30 ago, via GigabitEthernet1/0/2
Route metric is 3, traffic share count is 1
Validar o LSP
Você pode usar um traceroute MPLS do loopback PE para PE para validar o LSP e todos os rótulos LDP MPLS ao longo do caminho.
C9300-PE-1#traceroute mpls ipv4 192.168.1.4/32 source 192.168.1.2 Tracing MPLS Label Switched Path to 192.168.1.4/32, timeout is 2 seconds Codes: '!' - success, 'Q' - request not sent, '.' - timeout, 'L' - labeled output interface, 'B' - unlabeled output interface, 'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch, 'M' - malformed request, 'm' - unsupported tlvs, 'N' - no label entry, 'P' - no rx intf label prot, 'p' - premature termination of LSP, 'R' - transit router, 'I' - unknown upstream index, 'l' - Label switched with FEC change, 'd' - see DDMAP for return code, 'X' - unknown return code, 'x' - return code 0 Type escape sequence to abort. 0 10.0.0.5 MRU 1500 [Labels: 17 Exp: 0] L 1 10.0.0.6 MRU 1500 [Labels: explicit-null Exp: 0] 7 ms ! 2 10.0.0.18 1 ms
Se você não tiver acesso ao CE ou a um dispositivo atrás do CE e quiser demonstrar que há imposição/disposição de rótulo VPNv4 e LDP bem-sucedida, você pode tentar fazer ping a partir da interface voltada para CE no VRF em um PE para a outra interface voltada para CE no VRF no PE remoto.
C9300-PE-1#ping vrf RED 10.0.0.21 source 10.0.0.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.21, timeout is 2 seconds: Packet sent with a source address of 10.0.0.2 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
Validar adjacência de VPNv4 BGP entre PEs
C9300-PE-1#show bgp vpnv4 unicast all neighbors 192.168.1.4
BGP neighbor is 192.168.1.4, remote AS 69420, internal link
BGP version 4, remote router ID 192.168.1.4
BGP state = Established, up for 18:40:49
Last read 00:00:40, last write 00:00:47, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Address family VPNv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 4 4
Keepalives: 1237 1233
Route Refresh: 0 0
Total: 1242 1238
Do log neighbor state changes (via global configuration)
Default minimum time between advertisement runs is 0 seconds
<snip>
C9300-PE-2#show bgp vpnv4 unicast all neighbors 192.168.1.2
BGP neighbor is 192.168.1.2, remote AS 69420, internal link
BGP version 4, remote router ID 192.168.1.2
BGP state = Established, up for 18:41:36
Last read 00:00:42, last write 00:00:32, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Address family VPNv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 4 4
Keepalives: 1234 1238
Route Refresh: 0 0
Total: 1239 1243
Do log neighbor state changes (via global configuration)
Default minimum time between advertisement runs is 0 seconds
A adjacência remota de PE VPNv4 está ativa e um prefixo foi recebido
C9300-PE-1#show bgp vpnv4 unicast all summary BGP router identifier 192.168.1.2, local AS number 69420 BGP table version is 7, main routing table version 7 4 network entries using 1024 bytes of memory 4 path entries using 544 bytes of memory 4/4 BGP path/bestpath attribute entries using 1216 bytes of memory 4 BGP extended community entries using 1000 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 3784 total bytes of memory BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs 4 networks peaked at 18:49:56 Jun 23 2021 UTC (18:41:06.070 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 192.168.1.4 4 69420 1240 1244 7 0 0 18:41:59 2 C9300-PE-2#show bgp vpnv4 unicast all summary BGP router identifier 192.168.1.4, local AS number 69420 BGP table version is 7, main routing table version 7 4 network entries using 1024 bytes of memory 4 path entries using 544 bytes of memory 4/4 BGP path/bestpath attribute entries using 1216 bytes of memory 4 BGP extended community entries using 1000 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 3784 total bytes of memory BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs 4 networks peaked at 18:49:37 Jun 23 2021 UTC (18:41:06.851 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 192.168.1.2 4 69420 1244 1240 7 0 0 18:42:17 2
Verifique quais prefixos são trocados no VRF específico
C9300-PE-1#show ip bgp vpnv4 vrf RED
BGP table version is 7, local router ID is 192.168.1.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
*> 10.0.0.0/30 0.0.0.0 0 32768 ?
*>i 10.0.0.20/30 192.168.1.4 0 100 0 ?
*>i 192.168.2.0 192.168.1.4 130816 100 0 ?
*> 192.168.3.0 10.0.0.1 130816 32768 ?
C9300-PE-2#show ip bgp vpnv4 vrf RED
BGP table version is 7, local router ID is 192.168.1.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
*>i 10.0.0.0/30 192.168.1.2 0 100 0 ?
*> 10.0.0.20/30 0.0.0.0 0 32768 ?
*> 192.168.2.0 10.0.0.22 130816 32768 ?
*>i 192.168.3.0 192.168.1.2 130816 100 0 ?
Validar rótulos de VPNv4 e LDP
C9300-PE-1#show ip bgp vpnv4 vrf RED labels
Network Next Hop In label/Out label
Route Distinguisher: 69:69 (RED)
10.0.0.0/30 0.0.0.0 20/nolabel(RED)
10.0.0.20/30 192.168.1.4 nolabel/20
192.168.2.0 192.168.1.4 nolabel/21 <-- VPNv4 label that is be imposed to reach 192.168.20
192.168.3.0 10.0.0.1 21/nolabel
C9300-PE-1#show ip route vrf RED 192.168.2.1
Routing Table: RED
Routing entry for 192.168.2.0/24
Known via "bgp 69420", distance 200, metric 130816, type internal
Last update from 192.168.1.4 18:41:56 ago
Routing Descriptor Blocks:
* 192.168.1.4 (default), from 192.168.1.4, 18:41:56 ago
Route metric is 130816, traffic share count is 1
AS Hops 0
MPLS label: 21 <-- VPNv4 label that matches the previous output
MPLS Flags: MPLS Required
C9300-PE-2#show ip bgp vpnv4 vrf RED labels
Network Next Hop In label/Out label
Route Distinguisher: 69:69 (RED)
10.0.0.0/30 192.168.1.2 nolabel/20
10.0.0.20/30 0.0.0.0 20/nolabel(RED)
192.168.2.0 10.0.0.22 21/nolabel <-- VPNv4 label that is advertised to reach 192.168.2.0
192.168.3.0 192.168.1.2 nolabel/21
C9300-PE-2#show ip route vrf RED 192.168.2.1
Routing Table: RED
Routing entry for 192.168.2.0/24
Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal
Redistributing via eigrp 400, bgp 69420
Advertised by bgp 69420
Last update from 10.0.0.22 on GigabitEthernet2/0/1, 18:45:04 ago
Routing Descriptor Blocks:
* 10.0.0.22, from 10.0.0.22, 18:45:04 ago, via GigabitEthernet2/0/1 <-- CE-facing interface in the VRF
Route metric is 130816, traffic share count is 1
Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
Verifique as etiquetas LDP utilizadas
C9300-PE-1#show mpls forwarding-table 192.168.1.4
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
19 17 192.168.1.4/32 0 Gi1/0/2 10.0.0.6 <-- 17 is the LDP label imposed to reach PE at 192.168.1.4 through Gi1/0/2
17 192.168.1.4/32 0 Gi1/0/3 10.0.0.10 <-- 17 is the LDP label imposed to reach PE at 192.168.1.4 through Gi1/0/3
C9300-PE-2#show mpls forwarding-table 192.168.1.2
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
17 16 192.168.1.2/32 0 Gi2/0/2 10.0.0.13 <-- 16 is the LDP label imposed to reach PE at 192.168.1.2 through Gi2/0/2
16 192.168.1.2/32 0 Gi2/0/3 10.0.0.17 <-- 16 is the LDP label imposed to reach PE at 192.168.1.2 through Gi2/0/3
Validar a Tabela de Encaminhamento MPLS
C9300-PE-1#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
16 Pop Label 192.168.1.3/32 0 Gi1/0/2 10.0.0.6
Pop Label 192.168.1.3/32 0 Gi1/0/3 10.0.0.10
17 Pop Label 10.0.0.16/30 0 Gi1/0/2 10.0.0.6
Pop Label 10.0.0.16/30 0 Gi1/0/3 10.0.0.10
18 Pop Label 10.0.0.12/30 0 Gi1/0/2 10.0.0.6
Pop Label 10.0.0.12/30 0 Gi1/0/3 10.0.0.10
19 17 192.168.1.4/32 0 Gi1/0/2 10.0.0.6
17 192.168.1.4/32 0 Gi1/0/3 10.0.0.10
20 No Label 10.0.0.0/30[V] 630 aggregate/RED
21 No Label 192.168.3.0/24[V] \
0 Gi1/0/1 10.0.0.1
C9300-PE-2#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
16 Pop Label 192.168.1.3/32 0 Gi2/0/2 10.0.0.13
Pop Label 192.168.1.3/32 0 Gi2/0/3 10.0.0.17
17 16 192.168.1.2/32 0 Gi2/0/2 10.0.0.13
16 192.168.1.2/32 0 Gi2/0/3 10.0.0.17
18 Pop Label 10.0.0.4/30 0 Gi2/0/2 10.0.0.13
Pop Label 10.0.0.4/30 0 Gi2/0/3 10.0.0.17
19 Pop Label 10.0.0.8/30 0 Gi2/0/2 10.0.0.13
Pop Label 10.0.0.8/30 0 Gi2/0/3 10.0.0.17
20 No Label 10.0.0.20/30[V] 630 aggregate/RED
21 No Label 192.168.2.0/24[V] \
0 Gi2/0/1 10.0.0.22
Confirme os rótulos internos (VPNv4) e externos (LDP) usados para acessar cada prefixo especificado no VRF
C9300-PE-1#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0, flags [rib defined all labels]
recursive via 192.168.1.4 label 21 <-- VPNv4 label
nexthop 10.0.0.6 GigabitEthernet1/0/2 label 17-(local:19) <-- 17 is the LDP label that is imposed to reach the remote PE, 19 is the local LDP label advertised to the P router
nexthop 10.0.0.10 GigabitEthernet1/0/3 label 17-(local:19)<-- 17 is the LDP label that is imposed to reach the remote PE, 19 is the local LDP label advertised to the P router
C9300-PE-2#show ip cef vrf RED 192.168.3.0/24 detail
192.168.3.0/24, epoch 0, flags [rib defined all labels]
recursive via 192.168.1.2 label 21 <-- VPNv4 label
nexthop 10.0.0.13 GigabitEthernet2/0/2 label 16-(local:17) <-- 16 is the LDP label that is imposed to reach the remote PE, 17 is the local LDP label advertised to the P router
nexthop 10.0.0.17 GigabitEthernet2/0/3 label 16-(local:17) <-- 16 is the LDP label that is imposed to reach the remote PE, 17 is the local LDP label advertised to the P router
Verificar Estatísticas do Object-Manager:
Nos cenários ideais, não há objetos pendentes
C9300-PE-1#show platform software object-manager switch active f0 statistics Forwarding Manager Asynchronous Object Manager Statistics Object update: Pending-issue: 0, Pending-acknowledgement: 0 Batch begin: Pending-issue: 0, Pending-acknowledgement: 0 Batch end: Pending-issue: 0, Pending-acknowledgement: 0 Command: Pending-acknowledgement: 0 Total-objects: 491 Stale-objects: 0 Resolve-objects: 0 Childless-delete-objects: 0 Error-objects: 0 Paused-types: 0
9500-P#show platform software object-manager switch active f0 statistics Forwarding Manager Asynchronous Object Manager Statistics Object update: Pending-issue: 0, Pending-acknowledgement: 0 Batch begin: Pending-issue: 0, Pending-acknowledgement: 0 Batch end: Pending-issue: 0, Pending-acknowledgement: 0 Command: Pending-acknowledgement: 0 Total-objects: 491 Stale-objects: 0 Resolve-objects: 0 Childless-delete-objects: 0 Error-objects: 0 Paused-types: 0
C9300-PE-2#show platform software object-manager switch active f0 statistics Forwarding Manager Asynchronous Object Manager Statistics Object update: Pending-issue: 0, Pending-acknowledgement: 0 Batch begin: Pending-issue: 0, Pending-acknowledgement: 0 Batch end: Pending-issue: 0, Pending-acknowledgement: 0 Command: Pending-acknowledgement: 0 Total-objects: 482 Stale-objects: 0 Resolve-objects: 0 Childless-delete-objects: 0 Error-objects: 0 Paused-types: 0
Programação de prefixo
A próxima seção aborda a programação de prefixos nos roteadores MPLS, C9300-PE-1, C9500-P e C9300-PE-2.
Programação de prefixo C9300-PE-1
***Software Prefix Programming***
C9300-PE-1#show ip route vrf RED 192.168.2.1 Routing Table: RED Routing entry for 192.168.2.0/24 Known via "bgp 69420", distance 200, metric 130816, type internal Last update from 192.168.1.4 19:21:45 ago Routing Descriptor Blocks: * 192.168.1.4 (default), from 192.168.1.4, 19:21:45 ago <-- Remote PE reachable in the global routing table Route metric is 130816, traffic share count is 1 AS Hops 0 MPLS label: 21 <-- VPNv4 label MPLS Flags: MPLS Required C9300-PE-1#show ip route 192.168.1.4 Routing entry for 192.168.1.4/32 Known via "ospf 420", distance 110, metric 3, type intra area Last update from 10.0.0.10 on GigabitEthernet1/0/3, 19:23:17 ago Routing Descriptor Blocks: 10.0.0.10, from 192.168.1.4, 19:23:17 ago, via GigabitEthernet1/0/3 <-- Next-hop to reach 192.168.1.4 Route metric is 3, traffic share count is 1 * 10.0.0.6, from 192.168.1.4, 19:23:17 ago, via GigabitEthernet1/0/2 <-- Next-hop to reach 192.168.1.4 Route metric is 3, traffic share count is 1
***FMAN RP Prefix Programming*** C9300-PE-1#show ip vrf detail VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command Old CLI format, supports IPv4 only Flags: 0xC Interfaces: Gi1/0/1 Address family ipv4 unicast (Table ID = 0x2): Flags: 0x0 Export VPN route-target communities RT:69:69 Import VPN route-target communities RT:69:69 No import route-map No global export route-map No export route-map VRF label distribution protocol: not configured VRF label allocation mode: per-prefix C9300-PE-1#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 <-- Index value is the VRF ID from previous command Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.2.0/24 OBJ_LABEL 0x78 C9300-PE-1#show platform software mpls switch active r0 label index 0x78 <-- Utilize the Index value from previous command Label OCE 0x78 -> OBJ_LOADBALANCE (0x70) <-- Utilized in next command Flags: Real, Number of labels in the OCE: 1 Label values: 0x15 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480644d88 C9300-PE-1#show platform software loadinfo switch active r0 index 0x70 <-- Utilize the OBJ_LOADBALANCE value from previous command Number of loadinfo objects: 8 Index: 0x70, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16 Anti-polarising Factor: 0xf4a19ba0 Next Object Type: OBJ_LABEL, OBJ_LABEL Next obj handle: 0x6e, 0x6f Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 OM handle: 0x3480641fb8 C9300-PE-1#show platform software mpls switch active r0 label index 0x6e <-- Utilize the obj handle value from previous command Label OCE 0x6e -> OBJ_ADJACENCY (0x4b) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x34806420d0 C9300-PE-1#show platform software mpls switch active r0 label index 0x6f <-- Utilize the obj handle value from previous command Label OCE 0x6f -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480642268 C9300-PE-1#show platform software adjacency switch active r0 index 0x4b <-- Utilize the OBJ_ADJACENCY value from previous command Number of adjacency objects: 10 Adjacency id: 0x4b (75) Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 <-- MAC ending in DDE4 is the DMAC, MAC ending in D1D6 is SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.6 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x34806375f8 C9300-PE-1#show platform software adjacency switch active r0 index 0x4e <-- Utilize the OBJ_ADJACENCY value from previous command Number of adjacency objects: 10 Adjacency id: 0x4e (78) Interface: GigabitEthernet1/0/3, IF index: 55, Link Type: MCP_LINK_TAG Encap: d4:ad:71:b5:dd:c2:a0:f8:49:11:d1:d8:88:47 <-- MAC ending DDC2 is the DMAC, MAC ending in D1D8 is the SMAC, 8847 is the MPLS ETPYE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.10 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x3480638200
***FMAN FP Prefix Programming*** C9300-PE-1#show ip vrf detail VRF RED (VRF Id = 2); default RD 69:69; default VPNID Old CLI format, supports IPv4 only Flags: 0xC Interfaces: Gi1/0/1 Address family ipv4 unicast (Table ID = 0x2): Flags: 0x0 Export VPN route-target communities RT:69:69 Import VPN route-target communities RT:69:69 No import route-map No global export route-map No export route-map VRF label distribution protocol: not configured VRF label allocation mode: per-prefix C9300-PE-1#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 detail <-- Index value is the VRF ID from previous command Forwarding Table 192.168.2.0/24 -> OBJ_LABEL (0x78), urpf: 118 Prefix Flags: unknown aom id: 618, HW handle: (nil) (created) C9300-PE-1#show platform software mpls switch active f0 label index 0x78 <-- Use the OBJ_LABEL value from previous command Label OCE 0x78 -> OBJ_LOADBALANCE (0x70) Flags: Real, Number of labels in the OCE: 1 Label values: 0x15 Backup flags: Pop, UHP, backup label 0x100001 aom id: 617, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software object-manager switch active f0 object 617 parents <-- Use the aom id from previous command Object identifier: 600 Description: LB 0x70 Status: Done C9300-PE-1#show platform software loadinfo switch active f0 index 0x70 <-- Use the LB value from previous command Number of loadinfo objects: 8 Index: 0x70, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16 Anti-polarising Factor: 0xf4a19ba0 Next Object Type: OBJ_LABEL, OBJ_LABEL Next obj handle: 0x6e, 0x6f Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 aom id: 600, HW handle: (nil) C9300-PE-1#show platform software mpls switch active f0 label index 0x6e <-- Use the obj handle values from previous commands Label OCE 0x6e -> OBJ_ADJACENCY (0x4b) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 aom id: 598, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software mpls switch active f0 label index 0x6f <-- Use the obj handle values from previous command Label OCE 0x6f -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 aom id: 599, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software adjacency switch active f0 index 0x4b <-- Use the OBJ_ADJACENCY value from previous command Number of adjacency objects: 10 Adjacency id: 0x4b (75) Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.6 IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 531, HW handle: (nil) (created) C9300-PE-1#show platform software adjacency switch active f0 index 0x4e <-- Use the OBJ_ADJACENCY value from previous command Number of adjacency objects: 10 Adjacency id: 0x4e (78) Interface: GigabitEthernet1/0/3, IF index: 55, Link Type: MCP_LINK_TAG Encap: d4:ad:71:b5:dd:c2:a0:f8:49:11:d1:d8:88:47 Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.10 IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 535, HW handle: (nil) (created)
***FED Prefix Programming*** C9300-PE-1#show platform software fed switch active ip route vrf-name RED 192.168.2.0/24 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 2 192.168.2.0/24 0x7fbae8d86228 0x0 0 0 lspa0x2 2021/06/23 18:50:13.079 <-- HTM value significant for next command FIB: prefix_hdl:0x50000026, mpls_ecr_prefix_hdl:0 ========== OCE chain ===== LABEL:objid:120 link_type:IP local_label:1048577 outlabel:(21, 0) <-- VPNv4 label flags:0x1:(REAL,) pdflags:0x80:(INSTALL_HW_OK,RECIR_ADJ,) adj_handle:0xcb00003c <-- adj_handle and local_adj_hdl values must match unsupported recursion:0 olbl_changed 0 local_adj:1 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:3405774908 lbl:19 smac:0000.0000.0000 dmac:0000.0000.0000 <-- Label 19 matches the local transport label sub_type:0 link_type:0 adj_flags:0x10 label_type:0 rewrite_type:PSH2(121) vlan_id:0 vrf_id:0 ri:0x7fbae8d73648, ri_id:0x46 phdl:0, ref_cnt:2 <-- ri_id and ri_idx values must match si:0x7fbae8d834d8, si_id:0xb6, di_id:0x5013 LB:obj_id:112 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:19 path_inhw:2 ecrh:0x7d000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:2097152002 af:0 ecr_type:0 ref:7 ecrh:0x7fbae8a99268(28:2) hwhdl:3903427176 ::0x7fbae8a98b98,0x7fbae8a9ad48,0x7fbae8a98b98,0x7fbae8a9ad48 Sw Enh ECR scale: objid:112 llabel:19 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0x7d000002 ecr_hwhdl:0x7fbae8a99268 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:4278190135 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:1744830509 sih:0x7fbae8a98b98(179) di_id:20499 rih:0x7fbae8a985d8(33) adj_lentry [eos0:0x7fbae8d7bf48 eos1:0x7fbae8d76e88] ecr_adj: id:1392508984 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:2013265966 sih:0x7fbae8a9ad48(180) di_id:20499 rih:0x7fbae8a9a788(46) adj_lentry [eos0:0x7fbae8d7c1b8 eos1:0x7fbae8d77158] ecr_prefix_adj: id:2164260921 (ref:1) sih:0x7fbae8d7df08(181) di_id:20499 rih:0x7fbae8d7db98(68) LABEL:objid:110 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Label 19 is the local transport label, Label 17 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xff000037 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:4278190135 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4 <-- Matches next-hop information to reach 192.168.2.0/24 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7fbae8d78c48, ri_id:0x40 phdl:0x9f00004b, ref_cnt:1 si:0x7fbae8d78fd8, si_id:0x4013, di_id:0x535f <-- di_id utilized in subsequent commands ADJ:objid:75 {link_type:MPLS ifnum:0x36, si:0x22000023, } LABEL:objid:111 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Label 19 is the local transport label, Label 17 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x53000038 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1392508984 lbl:0 smac:a0f8.4911.d1d8 dmac:d4ad.71b5.ddc2 <-- Matches next-hop information to reach 192.168.2.0/24 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7fbae8d7d0a8, ri_id:0x42 phdl:0x8400004c, ref_cnt:1 si:0x7fbae8d7a908, si_id:0x4014, di_id:0x5360 <-- di_id utilized in subsequent commands ADJ:objid:78 {link_type:MPLS ifnum:0x37, si:0x74000026, } =============== MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0xa7000002 AAL:LSPA: id:2801795074 num_path:1 prefix_id:0x2 delete_hw_hdl_cnt:0 cookie[64]: 15000000000000000000000000000000000000000000000000000000000000004600000000000000000000000000000000000000000000000000000000000000 status:ok vpn_lbl:21 local_adj_hdl:0xcb00003c hw_hdl:0x7fbae8d86018 ri_idx:0x46 <-- vpn_lbl matches the VPNv4 label, adj_handle and local_adj_hdl values must match, ri_id and ri_idx must match =============== C9300-PE-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7fbae8d86228 1 <-- Utilize the HTM value from previous command Handle:0x7fbae8d86228 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7fbae8d71f58 Detailed Resource Information (ASIC# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7fbae8d71f58) Absolute Index: 92181 Time Stamp: 1 KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0 MASK - vrf:255 mtr:0 prefix:255.255.255.0 rcp_redirect_index:0x0 FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:182 destined_to_us:0 hw_stats_idx:0 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0x2 SRC-AD = learning_violation:1 need_to_learn:1 locally_connected:0 staticentryViolation:0 rpfValid:1 rpfLe:0 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:0 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0 port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0 ============================================================== C9300-PE-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x535f 0x535f <-- Utilize the di_id from the previous command ASIC#0: index = 0x535f pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x535f pmap = 0x00000000 0x00000002 <-- Looking at 0x00000002, in binary that is 0000 0000 0000 0000 000 0000 0000 0010 = Port 1 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9300-PE-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5360 0x5360 <-- Utilize the di_id from the previous command ASIC#0: ASIC#0: index = 0x5360 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x5360 pmap = 0x00000000 0x00000004 <-- Looking at 0x00000004, in binary that is 0000 0000 0000 0000 0000 0000 0000 0100 = Port 2 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9300-PE-1#show platform software fed switch active ifm map Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet1/0/2 0x36 1 0 1 1 0 6 7 2 2 NIF Y <-- Port 1 is an egress port, Gi1/0/2 GigabitEthernet1/0/3 0x37 1 0 1 2 0 28 8 3 3 NIF Y <-- Port 2 is an egress port, Gi1/0/3
Programação de prefixo C9500
***Software Prefix Programming***
C9500-P#show ip route 192.168.1.4 Routing entry for 192.168.1.4/32 Known via "ospf 420", distance 110, metric 2, type intra area Last update from 10.0.0.18 on TenGigabitEthernet2/0/2, 20:15:25 ago Routing Descriptor Blocks: 10.0.0.18, from 192.168.1.4, 20:15:25 ago, via TenGigabitEthernet2/0/2 <-- Next-hop towards 192.168.1.4 Route metric is 2, traffic share count is 1 * 10.0.0.14, from 192.168.1.4, 20:15:25 ago, via TenGigabitEthernet1/0/2 <-- Next-hop towards 192.168.1.4 Route metric is 2, traffic share count is 1 C9500-P#show ip cef 192.168.1.4 detail 192.168.1.4/32, epoch 4, per-destination sharing dflt local label info: global/17 [0x3] nexthop 10.0.0.14 TenGigabitEthernet1/0/2 label explicit-null-(local:17) <-- Explicit null to reach 192.168.1.4 nexthop 10.0.0.18 TenGigabitEthernet2/0/2 label explicit-null-(local:17) <-- Explicit null to reach 192.168.1.4
***FMAN RP Prefix Programming*** C9500-P#show platform software ip switch active r0 cef prefix 192.168.1.4/32 Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.1.4/32 OBJ_LOADBALANCE 0x6a C9500-P#show platform software loadinfo switch active r0 index 0x6a <-- Use the OBJ_LOADBALANCE value from previous command Number of loadinfo objects: 4 Index: 0x6a, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16 Anti-polarising Factor: 0x57a70068 Next Object Type: OBJ_LABEL, OBJ_LABEL Next obj handle: 0x68, 0x69 Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 OM handle: 0x348064de58 C9500-P#show platform software mpls switch active r0 label index 0x68 <-- Use the obj handle values from the previous command Label OCE 0x68 -> OBJ_ADJACENCY (0x49) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348064df70 C9500-P#show platform software mpls switch active r0 label index 0x69 Label OCE 0x69 -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348064e108 C9500-P#show platform software adjacency switch active r0 index 0x49 <-- Use the OBJ_ADJACENCY values from previous commands Number of adjacency objects: 16 Adjacency id: 0x49 (73) Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending is B5DD is SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.14 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x3480647700 C9500-P#show platform software adjacency switch active r0 index 0x4e <-- Use the OBJ_ADJACENCY values from previous commands Number of adjacency objects: 16 Adjacency id: 0x4e (78) Interface: TenGigabitEthernet2/0/2, IF index: 68, Link Type: MCP_LINK_TAG Encap: 70:d3:79:be:ae:61:d4:ad:71:b5:dd:f1:88:47 <-- MAC ending in AE61 is DMAC, MAC ending in B5DD is SMAC, 8847 is MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.18 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x3480648f68
***FMAN FP Prefix Programming*** C9500-P#show platform software ip switch active f0 cef prefix 192.168.1.4/32 Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.1.4/32 OBJ_LOADBALANCE 0x6a C9500-P#show platform software loadinfo switch active f0 index 0x6a <-- Use the OBJ_LOADBALANCE value from previous command Number of loadinfo objects: 4 Index: 0x6a, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16 Anti-polarising Factor: 0x57a70068 Next Object Type: OBJ_LABEL, OBJ_LABEL Next obj handle: 0x68, 0x69 Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 aom id: 578, HW handle: (nil) C9500-P#show platform software mpls switch active f0 label index 0x68 <-- Use the obj handle values from previous command Label OCE 0x68 -> OBJ_ADJACENCY (0x49) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 576, CPP handle: 0xdeadbeef (created) C9500-P#show platform software mpls switch active f0 label index 0x69 <-- Use the obj handle values from previous command Label OCE 0x69 -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 577, CPP handle: 0xdeadbeef (created) C9500-P#show platform software adjacency switch active f0 index 0x49 <-- Use the OBJ_ADJACENCY values from previous commands Number of adjacency objects: 16 Adjacency id: 0x49 (73) Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending in DDD6 is the SMAC, 8847 is the MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.14 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 536, HW handle: (nil) (created) C9500-P#show platform software adjacency switch active f0 index 0x4e <-- Use the OBJ_ADJACENCY values from previous commands Number of adjacency objects: 16 Adjacency id: 0x4e (78) Interface: TenGigabitEthernet2/0/2, IF index: 68, Link Type: MCP_LINK_TAG Encap: 70:d3:79:be:ae:61:d4:ad:71:b5:dd:f1:88:47 <-- MAC ending in AE61 is the DMAC, MAC ending in DDF1 is the SMAC, 8847 is the MPLS ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: unknown Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.18 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 545, HW handle: (nil) (created)
***FED Prefix Programming*** C9500-P#show platform software fed switch active ip route 192.168.1.4/32 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 0 192.168.1.4/32 0x7f0b284c1118 0x0 0 0 2021/06/23 18:47:01.761 <-- HTM value important for subsequent command FIB: prefix_hdl:0x9b000020, mpls_ecr_prefix_hdl:0xdd00003a ========== OCE chain ===== LB:obj_id:106 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0x44000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:1140850690 af:0 ecr_type:0 ref:2 ecrh:0x7f0b284a3998(28:2) hwhdl:675953048 ::0x7f0b284b4268,0x7f0b284a1d78,0x7f0b284b4268,0x7f0b284a1d78 Sw Enh ECR scale: objid:106 llabel:17 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0x44000002 ecr_hwhdl:0x7f0b284a3998 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:4127195192 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:1207959601 sih:0x7f0b284b4268(181) di_id:23709 rih:0x7f0b284b3ca8(31) adj_lentry [eos0:0x7f0b284c38e8 eos1:0x7f0b284cd858] ecr_adj: id:1157627961 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:67108914 sih:0x7f0b284a1d78(182) di_id:23709 rih:0x7f0b284b47d8(44) adj_lentry [eos0:0x7f0b284c3af8 eos1:0x7f0b284cdb28] ecr_prefix_adj: id:3707764794 (ref:1) sih:0x7f0b284c5028(184) di_id:23709 rih:0x7f0b284c4c48(60) LABEL:objid:104 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xf6000038 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:4127195192 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 <-- Matches the next-hop information to reach 192.168.1.4/32 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0b284ceaa8, ri_id:0x38 phdl:0x76000058, ref_cnt:1 si:0x7f0b284ceeb8, si_id:0x400b, di_id:0x2 <-- Used in subsequent commands ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x1f000028, } LABEL:objid:105 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x45000039 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1157627961 lbl:0 smac:d4ad.71b5.ddf1 dmac:70d3.79be.ae61 <-- Matches the next-hop information to reach 192.168.1.4/32 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0b284c4588, ri_id:0x3a phdl:0x5500005a, ref_cnt:1 si:0x7f0b284d0548, si_id:0x400c, di_id:0x62 <-- Used in subsequent commands ADJ:objid:78 {link_type:MPLS ifnum:0x44, si:0x4900002a, } =============== MPLS info: mpls_ecr_scale_prefix_adj:0xdd00003a, mpls_lspa_hdl:0 =============== C9500-P#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f0b284c1118 1 <-- Use the HTM value from previous command Handle:0x7f0b284c1118 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f0b284c1328 Features sharing this resource:Cookie length: 12 04 01 a8 c0 00 00 00 d0 07 00 00 00 Detailed Resource Information (ASIC# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7f0b284c1328) Absolute Index: 126650 Time Stamp: 1 KEY - vrf:0 mtr:0 prefix:192.168.1.4 rcp_redirect_index:0x0 MASK - vrf:0 mtr:0 prefix:0.0.0.0 rcp_redirect_index:0x0 FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:184 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0 SRC-AD = learning_violation:0 need_to_learn:0 locally_connected:0 staticentryViolation:0 rpfValid:1 rpfLe:2 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:1 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0 port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0 ============================================================== C9500-P#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x2 0x2 <-- Use the di_id values from previous command ASIC#0: index = 0x2 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x2 pmap = 0x00000000 0x00000002 <-- Looking at 0x00000002, in binary that is 0000 0000 0000 0000 0000 0000 0000 0010 = Port 1 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9500-P#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x62 0x62 ASIC#0: index = 0x62 pmap = 0x00000000 0x00008000 <-- Looking at 0x00008000, in binary that is 0000 0000 0000 0000 1000 0000 0000 0000 = Port 15 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x62 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9500-P#show platform software fed switch standby ip route 192.168.1.4/32 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 0 192.168.1.4/32 0x7f57c0545938 0x0 0 0 2021/06/23 18:46:51.399 <-- HTM value used in subsequent command FIB: prefix_hdl:0x29000020, mpls_ecr_prefix_hdl:0x8f000039 ========== OCE chain ===== LB:obj_id:106 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0xf1000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:4043309058 af:0 ecr_type:0 ref:2 ecrh:0x7f57c04d2148(28:2) hwhdl:3226280264 ::0x7f57c0547538,0x7f57c05497d8,0x7f57c0547538,0x7f57c05497d8 Sw Enh ECR scale: objid:106 llabel:17 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0xf1000002 ecr_hwhdl:0x7f57c04d2148 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:201326647 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:3925868592 sih:0x7f57c0547538(181) di_id:23717 rih:0x7f57c0546f18(31) adj_lentry [eos0:0x7f57c04c8a08 eos1:0x7f57c04d07f8] ecr_adj: id:738197560 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:3070230577 sih:0x7f57c05497d8(182) di_id:23717 rih:0x7f57c0547838(44) adj_lentry [eos0:0x7f57c04c8c18 eos1:0x7f57c04d0ac8] ecr_prefix_adj: id:2399141945 (ref:1) sih:0x7f57c04c8788(184) di_id:23717 rih:0x7f57c04c8508(60) LABEL:objid:104 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xc000037 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:201326647 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 <-- Matches next-hop information to reach 192.168.1.4/32 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f57c04d18e8, ri_id:0x38 phdl:0x76000058, ref_cnt:1 si:0x7f57c04d1b18, si_id:0x400b, di_id:0x2 <-- di_id utilized in subsequent commands ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0xdf000027, } LABEL:objid:105 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x2c000038 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:738197560 lbl:0 smac:d4ad.71b5.ddf1 dmac:70d3.79be.ae61 <-- Matches next-hop information to reach 192.168.1.4/32 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f57c04da418, ri_id:0x3a phdl:0x5500005a, ref_cnt:1 si:0x7f57c04da838, si_id:0x400c, di_id:0x62 <-- di_id utilized in subsequent commands ADJ:objid:78 {link_type:MPLS ifnum:0x44, si:0xfa000029, } =============== MPLS info: mpls_ecr_scale_prefix_adj:0x8f000039, mpls_lspa_hdl:0 =============== C9500-P#show platform hardware fed switch standby fwd-asic resource asic all destination-index range 0x62 0x62 ASIC#0: index = 0x62 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x62 pmap = 0x00000000 0x00000002 <-- Looking at 0x000000002, in binary that is 0000 0000 0000 0000 0000 0000 0000 0010 = Port 1 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9500-P#show platform hardware fed switch standby fwd-asic resource asic all destination-index range 0x2 0x2 ASIC#0: index = 0x2 pmap = 0x00000000 0x00008000 <-- Looking at 0x00008000, in binary that is 0000 0000 0000 0000 1000 0000 0000 0000 = Port 15 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x2 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9500-P#show platform software fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active TenGigabitEthernet1/0/2 0x42 1 0 1 1 0 10 1 2 2 NIF Y <-- Port 1 is an egres port, TenGi1/0/2 TenGigabitEthernet1/0/16 0x18 0 0 0 15 0 8 11 16 2360 NIF Y <-- Port 15 is the SVL C9500-P#show platform software fed switch standby ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active TenGigabitEthernet2/0/2 0x44 1 0 1 1 0 10 1 2 98 NIF Y <-- Port 1 is an egres port, TenGi2/0/2 TenGigabitEthernet2/0/16 0x33 0 0 0 15 0 8 11 16 2360 NIF Y <-- Port 15 is the SVL
Verifique os prefixos C9300-PE-2
***Software Prefix Programming***
C9300-PE-2#show ip route vrf RED 192.168.2.0 Routing Table: RED Routing entry for 192.168.2.0/24 Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal Redistributing via eigrp 400, bgp 69420 Advertised by bgp 69420 Last update from 10.0.0.22 on GigabitEthernet2/0/1, 21:35:22 ago Routing Descriptor Blocks: * 10.0.0.22, from 10.0.0.22, 21:35:22 ago, via GigabitEthernet2/0/1 <-- Next-hop to reach 192.168.2.0/24 Route metric is 130816, traffic share count is 1 Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit Reliability 255/255, minimum MTU 1500 bytes Loading 1/255, Hops 1 C9300-PE-2#show ip route vrf RED 10.0.0.22 Routing Table: RED Routing entry for 10.0.0.20/30 Known via "connected", distance 0, metric 0 (connected, via interface) Redistributing via eigrp 400, bgp 69420 Advertised by bgp 69420 Routing Descriptor Blocks: * directly connected, via GigabitEthernet2/0/1 Route metric is 0, traffic share count is 1 C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail 192.168.2.0/24, epoch 0 QOS: Precedence routine (0) dflt local label info: other/21 [0x2] <-- VPNv4 Label nexthop 10.0.0.22 GigabitEthernet2/0/1
***FMAN RP Prefix Programming*** C9300-PE-2#show ip vrf detail VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID used in next command Old CLI format, supports IPv4 only Flags: 0xC Interfaces: Gi2/0/1 Address family ipv4 unicast (Table ID = 0x2): Flags: 0x0 Export VPN route-target communities RT:69:69 Import VPN route-target communities RT:69:69 No import route-map No global export route-map No export route-map VRF label distribution protocol: not configured VRF label allocation mode: per-prefix C9300-PE-2#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 <-- Use the VRF ID from previous command Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.2.0/24 OBJ_ADJACENCY 0x3a C9300-PE-2#show platform software adjacency switch active r0 index 0x3a <-- Use the OBJ_ADJACENCY value from previous command Number of adjacency objects: 10 Adjacency id: 0x3a (58) Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 <-- MAC ending in C9C2 is the DMAC, MAC ending in AE42 is SMAC, 0800 is IP ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: no-l3-inject Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.22 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 OM handle: 0x348062b578
***FMAN FP Prefix Programming*** C9300-PE-2#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 Forwarding Table Prefix/Len Next Object Index ---------------------------------------------------------------- 192.168.2.0/24 OBJ_ADJACENCY 0x3a C9300-PE-2#show platform software adjacency switch active f0 index 0x3a <-- Use the OBJ_ADJACENCY value from previous command Number of adjacency objects: 10 Adjacency id: 0x3a (58) Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 <-- MAC ending in C9C2 is the DMAC, MAC ending in AE42 is SMAC, 0800 is IP ETYPE Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500 Flags: no-l3-inject Incomplete behavior type: None Fixup: unknown Fixup_Flags_2: unknown Nexthop addr: 10.0.0.22 <-- Next-hop IP address IP FRR MCP_ADJ_IPFRR_NONE 0 aom id: 477, HW handle: (nil) (created)
***FED Prefix Programming*** C9300-PE-2#show platform hardware fed switch active ip route vrf-name RED 192.168.2.0/24 vrf dest htm flags SGT DGID MPLS Last-modified --- ---- --- ----- --- ---- ---- ------------------------ 2 192.168.2.0/24 0x7f0650a7e3e8 0x0 0 0 2021/06/23 18:46:56.801 <-- HTM value used in subsequent command FIB: prefix_hdl:0x38000016, mpls_ecr_prefix_hdl:0 ========== OCE chain ===== ADJ:objid:58 {link_type:IP ifnum:0x35, si:0x9700001b, IPv4: 10.0.0.22 } <-- objid relevant in subsequent command, 10.0.0.22 is the next-hop IP =============== MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0 =============== C9300-PE-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f0650a7e3e8 1 <-- Use the HTM value from previous command Handle:0x7f0650a7e3e8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f0650ba4028 Detailed Resource Information (ASIC# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7f0650ba4028) Absolute Index: 92180 Time Stamp: 1 KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0 MASK - vrf:255 mtr:0 prefix:255.255.255.0 rcp_redirect_index:0x0 (SI value used later) FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:173 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0 SRC-AD = learning_violation:1 need_to_learn:1 locally_connected:0 staticentryViolation:0 rpfValid:1 rpfLe:37 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0 port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0 ============================================================== C9300-PE-2#show platform software fed switch active ip adj IPV4 Adj entries dest if_name dst_mac si_hdl ri_hdl pd_flags adj_id Last-modified ---- ------- ------- ------ ------ -------- ----- ------------------------ 10.0.0.22 GigabitEthernet2/0/1 0072.78c8.c9c2 0x7f0650a32858 0x7f0650a1af48 0x0 0x3a 2021/06/23 18:46:52.956 C9300-PE-2#show ip arp vrf RED 10.0.0.22 Protocol Address Age (min) Hardware Addr Type Interface Internet 10.0.0.22 131 0072.78c8.c9c2 ARPA GigabitEthernet2/0/1 <-- dst_mac matches the ARP entry C9300-PE-2#show platform hardware fed fwd-asic abstraction print-resource-handle 0x7f0650a32858 1 <-- Use the HTM value from previous command Handle:0x7f0650a32858 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1 priv_ri/priv_si Handle: 0x7f0650a1af48Hardware Indices/Handles: index0:0xad mtu_index/l3u_ri_index0:0x0 index1:0xad mtu_index/l3u_ri_index1:0x0 Features sharing this resource:66 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 25 00 00 00 00 00 00 00 00 00 00 00 08 00 00 72 78 c8 c9 c2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Detailed Resource Information (ASIC# 0) ---------------------------------------- Station Index (SI) [0xad] RI = 0x18 DI = 0x5338 stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: CD Detailed Resource Information (ASIC# 1) ---------------------------------------- Station Index (SI) [0xad] RI = 0x18 DI = 0x5338 stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD ============================================================== C9300-PE-2#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5338 0x5338 <-- Use the DI value from previous command ASIC#0: index = 0x5338 pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 ASIC#1: index = 0x5338 pmap = 0x00000000 0x00000001 <-- Looking at 0x00000001, in binary that is 0000 0000 0000 0000 0000 0000 0000 0001 = Port 0 (Zero based, count right to left) cmi = 0x0 rcp_pmap = 0x0 al_rsc_cmi CPU Map Index (CMI) [0] ctiLo0 = 0 ctiLo1 = 0 ctiLo2 = 0 cpuQNum0 = 0 cpuQNum1 = 0 cpuQNum2 = 0 npuIndex = 0 stripSeg = 0 copySeg = 0 C9300-PE-2#show platform software fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet2/0/1 0x35 1 0 1 0 0 26 6 1 97 NIF Y <-- Port 0 is the egress port, Gi2/0/1
Programação de rótulo do VPNv4
A próxima seção aborda a programação de rótulos de VPNv4 nos roteadores PE MPLS, C9300-PE-1 e C9300-PE-2. O C9500=P não encaminha no rótulo VPNv4, portanto não há saída do C9500-P.
Programação de etiquetas de VPNv4 do C9300-PE-1:
Verifique o prefixo local no PE, não o prefixo remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
***Software VPNv4 Label Programming***
C9300-PE-1#show ip cef vrf RED 192.168.3.0/24 detail 192.168.3.0/24, epoch 0 QOS: Precedence routine (0) dflt local label info: other/21 [0x2] <-- VPNv4 label assocaited with the local prefix nexthop 10.0.0.1 GigabitEthernet1/0/1
***FMAN RP VPNv4 Label Programming*** C9300-PE-1#show platform software mpls switch active r0 eos index 117 <-- Utilize the objid from the FED command EOS Choice 0x75, Number of paths: 2 Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL Next Object Index: 0,0x74 OM handle: 0x3480644470 ***FMAN FP VPNv4 Label Programming*** C9300-PE-1#show platform software mpls switch active f0 eos index 117 <-- Utilize the objid from the FED command EOS Choice 0x75, Number of paths: 2 Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL Next Object Index: 0,0x74 aom id: 612, CPP handle: 0xdeadbeef (created), flags: 0 C9300-PE-1#show platform software object-manager switch active f0 object 612 <-- Use the aom id from previous command Object identifier: 612 Description: EOS Choice 0x75 Status: Done, Epoch: 0, Client data: 0xe05e9318 C9300-PE-1#show platform software object-manager switch active f0 object 612 parents <-- Use the aom id from previous command Object identifier: 7 Description: Special Object adj_drop Status: Done Object identifier: 611 Description: label 0x74 Status: Done
***FED VPNv4 Label Programming*** C9300-PE-1#show platform software fed switch active mpls forwarding label 21 detail LENTRY:label:21 nobj:(EOS, 117) lentry_hdl:0x8b000009 modify_cnt:0 backwalk_cnt:0 lspa_handle:0 AAL: id:2332033033 lbl:21 eos0:[adj_hdl:0, hw_hdl:0x7fbae8d87428] eos1:[adj_hdl:0x4300003b, hw_hdl:0x7fbae8d87278] deagg_vrf_id = 0 lspa_handle:0 EOS:objid:117 local_label:0 flags:0:() pdflags:0 <-- Utilized in previous commands nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 116) modify:0 bwalk:0 LABEL:objid:116 link_type:IP local_label:21 outlabel:(1048577, 0) flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0x4300003b unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1124073531 lbl:0 smac:a0f8.4911.d1e4 dmac:0072.78c8.06e4 sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135) vlan_id:0 vrf_id:0 ri:0x7fbae8d811b8, ri_id:0x3e phdl:0xf1000024, ref_cnt:1 si:0x7fbae8d72078, si_id:0x4012, di_id:0x5338 ADJ:objid:58 {link_type:IP ifnum:0x35, si:0x1900001b, IPv4: 10.0.0.1 }
Verificar rótulos de VPNv4 do C9300-PE-2
Verifique o prefixo local para o PE, não o prefixo remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0
QOS: Precedence routine (0)
dflt local label info: other/21 [0x2] <-- VPNv4 label associated with the local prefix
nexthop 10.0.0.22 GigabitEthernet2/0/1
C9300-PE-2#show platform software mpls switch active r0 eos index 118 <-- Utilize the objid value from the FED command
EOS Choice 0x76, Number of paths: 2
Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
Next Object Index: 0,0x75
OM handle: 0x34806402d0
C9300-PE-2#show platform software mpls switch active f0 eos index 118 <-- Utilize the objid value from the FED command
EOS Choice 0x76, Number of paths: 2
Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
Next Object Index: 0,0x75
aom id: 589, CPP handle: 0xdeadbeef (created), flags: 0
C9300-PE-2#show platform software object-manager switch active f0 object 589 <-- Utilize the aom id from the previous command
Object identifier: 589
Description: EOS Choice 0x76
Status: Done, Epoch: 0, Client data: 0x248cac8
C9300-PE-2#show platform software object-manager switch active f0 object 589 parents <-- Utilize the aom id from the previous command
Object identifier: 7
Description: Special Object adj_drop
Status: Done
Object identifier: 588
Description: label 0x75
Status: Done
C9300-PE-2#show platform software fed switch active mpls forwarding label 21 detail
LENTRY:label:21 nobj:(EOS, 118) lentry_hdl:0x63000009
modify_cnt:0 backwalk_cnt:0
lspa_handle:0
AAL: id:1660944393 lbl:21
eos0:[adj_hdl:0, hw_hdl:0x7f0650a40408]
eos1:[adj_hdl:0xcb00003a, hw_hdl:0x7f0650a401f8]
deagg_vrf_id = 0 lspa_handle:0
EOS:objid:118 local_label:0 flags:0:() pdflags:0
nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 117) modify:0 bwalk:0
LABEL:objid:117 link_type:IP local_label:21 outlabel:(1048577, 0)
flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0xcb00003a
unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
AAL: id:3405774906 lbl:0 smac:70d3.79be.ae42 dmac:0072.78c8.c9c2
sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135)
vlan_id:0 vrf_id:0 ri:0x7f0650a3f2a8, ri_id:0x48 phdl:0xf1000024, ref_cnt:1
si:0x7f0650a3d5e8, si_id:0x400a, di_id:0x5338
ADJ:objid:58 {link_type:IP ifnum:0x35, si:0x9700001b, IPv4: 10.0.0.22 }
Programação de etiqueta LDP
A próxima seção aborda a programação de rótulo de LDP nos roteadores MPLS, C9300-PE-1, C9500-P e C9300-PE-2.
O rótulo LDP (externo) é o que o rótulo de rede MPLS comuta os pacotes. Valide o rótulo LDP local anunciado ao PE remoto. Não valide o rótulo LDP remoto.
Programação de etiqueta LDP do C9300-PE-1:
Valide o rótulo LDP local anunciado ao PE remoto, não valide o rótulo LDP remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
***Software LDP Label Programming***
C9300-PE-1#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 Pop Label 192.168.1.3/32 0 Gi1/0/2 10.0.0.6 Pop Label 192.168.1.3/32 0 Gi1/0/3 10.0.0.10 17 Pop Label 10.0.0.16/30 0 Gi1/0/2 10.0.0.6 Pop Label 10.0.0.16/30 0 Gi1/0/3 10.0.0.10 18 Pop Label 10.0.0.12/30 0 Gi1/0/2 10.0.0.6 Pop Label 10.0.0.12/30 0 Gi1/0/3 10.0.0.10 19 17 192.168.1.4/32 0 Gi1/0/2 10.0.0.6 <-- LDP label 19 is advertised to reach PE 192.168.1.4 17 192.168.1.4/32 0 Gi1/0/3 10.0.0.10 20 No Label 10.0.0.0/30[V] 630 aggregate/RED 21 No Label 192.168.3.0/24[V] \ 0 Gi1/0/1 10.0.0.1
***FMAN RP LDP Label Programming*** C9300-PE-1#show platform software mpls switch active r0 label index 110 <-- Use the objid value from the FED commands Label OCE 0x6e -> OBJ_ADJACENCY (0x4b) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x34806420d0 C9300-PE-1#show platform software mpls switch active r0 label index 111 <-- Use the objid value from the FED commands Label OCE 0x6f -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480642268
***FMAN FP LDP Label Programming*** C9300-PE-1#show platform software mpls switch active f0 label index 110 <-- Use the objid value from the FED commands Label OCE 0x6e -> OBJ_ADJACENCY (0x4b) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 aom id: 598, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software mpls switch active f0 label index 111 <-- Use the objid value from the FED commands Label OCE 0x6f -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0x11 Backup flags: Pop, UHP, backup label 0x100001 aom id: 599, CPP handle: 0xdeadbeef (created) C9300-PE-1#show platform software object-manager switch active f0 object 598 <-- Utilize the aom id from previous commands Object identifier: 598 Description: label 0x6e Status: Done, Epoch: 0, Client data: 0xe05e6d78 C9300-PE-1#show platform software object-manager switch active f0 object 598 parents <-- Utilize the aom id from previous commands Object identifier: 531 Description: adj 0x4b, Flags None Status: Done C9300-PE-1#show platform software object-manager switch active f0 object 599 <-- Utilize the aom id from previous commands Object identifier: 599 Description: label 0x6f Status: Done, Epoch: 0, Client data: 0xe05e6f78 C9300-PE-1#show platform software object-manager switch active f0 object 599 parents <-- Utilize the aom id from previous commands Object identifier: 535 Description: adj 0x4e, Flags None Status: Done C9300-PE-1#show platform software fed switch active mpls forwarding label 19 detail LENTRY:label:19 nobj:(LB, 112) lentry_hdl:0x9000007 modify_cnt:1 backwalk_cnt:0 lspa_handle:0 AAL: id:150994951 lbl:19 eos0:[adj_hdl:0x7d000002, hw_hdl:0x7fbae8d778b8] eos1:[adj_hdl:0x7d000002, hw_hdl:0x7fbae8d776a8] deagg_vrf_id = 0 lspa_handle:0 LB:obj_id:112 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:19 path_inhw:2 ecrh:0x7d000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:2097152002 af:0 ecr_type:0 ref:7 ecrh:0x7fbae8a99268(28:2) hwhdl:3903427176 ::0x7fbae8a98b98,0x7fbae8a9ad48,0x7fbae8a98b98,0x7fbae8a9ad48 Sw Enh ECR scale: objid:112 llabel:19 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0x7d000002 ecr_hwhdl:0x7fbae8a99268 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:4278190135 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:1744830509 sih:0x7fbae8a98b98(179) di_id:20499 rih:0x7fbae8a985d8(33) adj_lentry [eos0:0x7fbae8d7bf48 eos1:0x7fbae8d76e88] ecr_adj: id:1392508984 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:2013265966 sih:0x7fbae8a9ad48(180) di_id:20499 rih:0x7fbae8a9a788(46) adj_lentry [eos0:0x7fbae8d7c1b8 eos1:0x7fbae8d77158] ecr_prefix_adj: id:2164260921 (ref:1) sih:0x7fbae8d7df08(181) di_id:20499 rih:0x7fbae8d7db98(68) LABEL:objid:110 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Used in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xff000037 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:4278190135 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7fbae8d78c48, ri_id:0x40 phdl:0x9f00004b, ref_cnt:1 si:0x7fbae8d78fd8, si_id:0x4013, di_id:0x535f ADJ:objid:75 {link_type:MPLS ifnum:0x36, si:0x22000023, } LABEL:objid:111 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Used in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x53000038 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1392508984 lbl:0 smac:a0f8.4911.d1d8 dmac:d4ad.71b5.ddc2 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7fbae8d7d0a8, ri_id:0x42 phdl:0x8400004c, ref_cnt:1 si:0x7fbae8d7a908, si_id:0x4014, di_id:0x5360 ADJ:objid:78 {link_type:MPLS ifnum:0x37, si:0x74000026, }
Programação de etiqueta LDP do C9500-P:
Valide o rótulo LDP local anunciado ao PE remoto, não valide o rótulo LDP remoto. Verifique o rótulo de uma perspectiva de FED e depois faça o retrocesso para FMAN RP e FMAN FP.
***Software LDP Label Programming***
C9500-P#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 explicit-n 192.168.1.2/32 1240 Te1/0/1 10.0.0.5 <-- LDP Label 16 advertised to reach PE 192.168.1.2 explicit-n 192.168.1.2/32 226537 Te2/0/1 10.0.0.9 17 explicit-n 192.168.1.4/32 610 Te1/0/2 10.0.0.14 <-- LDP LAbel 17 advertised to reach PE 192.168.1.4 explicit-n 192.168.1.4/32 227592 Te2/0/2 10.0.0.18
***FMAN RP LDP Label Programming*** C9500-P#show platform software mpls switch active r0 label index 94 Label OCE 0x5e -> OBJ_ADJACENCY (0x3f) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348064c530 C9500-P#show platform software mpls switch active r0 label index 95 Label OCE 0x5f -> OBJ_ADJACENCY (0x44) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348064c6c8 C9500-P#show platform software mpls switch active r0 label index 104 Label OCE 0x68 -> OBJ_ADJACENCY (0x49) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348064df70 C9500-P#show platform software mpls switch active r0 label index 105 Label OCE 0x69 -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x348064e108
***FMAN FP LDP Label Programming*** C9500-P#show platform software mpls switch active f0 label index 94 Label OCE 0x5e -> OBJ_ADJACENCY (0x3f) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 564, CPP handle: 0xdeadbeef (created) C9500-P#show platform software mpls switch active f0 label index 95 Label OCE 0x5f -> OBJ_ADJACENCY (0x44) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 565, CPP handle: 0xdeadbeef (created) C9500-P#show platform software mpls switch active f0 label index 104 Label OCE 0x68 -> OBJ_ADJACENCY (0x49) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 576, CPP handle: 0xdeadbeef (created) C9500-P#show platform software mpls switch active f0 label index 105 Label OCE 0x69 -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0 Backup flags: Pop, UHP, backup label 0x100001 aom id: 577, CPP handle: 0xdeadbeef (created) C9500-P#show platform software object-manager switch active f0 object 564 Object identifier: 564 Description: label 0x5e Status: Done, Epoch: 0, Client data: 0x4f737108 C9500-P#show platform software object-manager switch active f0 object 564 parents Object identifier: 515 Description: adj 0x3f, Flags None Status: Done C9500-P#show platform software object-manager switch active f0 object 565 Object identifier: 565 Description: label 0x5f Status: Done, Epoch: 0, Client data: 0x4f737448 C9500-P#show platform software object-manager switch active f0 object 565 parents Object identifier: 525 Description: adj 0x44, Flags None Status: Done C9500-P#show platform software object-manager switch active f0 object 576 Object identifier: 576 Description: label 0x68 Status: Done, Epoch: 0, Client data: 0x4f6d4bf8 C9500-P#show platform software object-manager switch active f0 object 576 parents Object identifier: 536 Description: adj 0x49, Flags None Status: Done C9500-P#show platform software object-manager switch active f0 object 577 Object identifier: 577 Description: label 0x69 Status: Done, Epoch: 0, Client data: 0x4f737f78 C9500-P#show platform software object-manager switch active f0 object 577 parents Object identifier: 545 Description: adj 0x4e, Flags None Status: Done
***FED LDP Label Programming*** C9500-P#show platform software fed switch active mpls forwarding label 16 detail LENTRY:label:16 nobj:(LB, 96) lentry_hdl:0xeb000004 modify_cnt:2 backwalk_cnt:0 lspa_handle:0 AAL: id:3942645764 lbl:16 eos0:[adj_hdl:0x44000002, hw_hdl:0x7f0b284b4d98] eos1:[adj_hdl:0x44000002, hw_hdl:0x7f0b284b4be8] deagg_vrf_id = 0 lspa_handle:0 LB:obj_id:96 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:16 path_inhw:2 ecrh:0x44000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:1140850690 af:0 ecr_type:0 ref:2 ecrh:0x7f0b284a3998(28:2) hwhdl:675953048 ::0x7f0b284b4268,0x7f0b284a1d78,0x7f0b284b4268,0x7f0b284a1d78 Sw Enh ECR scale: objid:96 llabel:16 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0x44000002 ecr_hwhdl:0x7f0b284a3998 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:1610612787 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:1207959601 sih:0x7f0b284b4268(181) di_id:23709 rih:0x7f0b284b3ca8(31) adj_lentry [eos0:0x7f0b284a32d8 eos1:0x7f0b284a3cc8] ecr_adj: id:805306420 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:67108914 sih:0x7f0b284a1d78(182) di_id:23709 rih:0x7f0b284b47d8(44) adj_lentry [eos0:0x7f0b284c1608 eos1:0x7f0b284a2138] ecr_prefix_adj: id:3976200245 (ref:1) sih:0x7f0b284c2bf8(183) di_id:23709 rih:0x7f0b284c2888(50) LABEL:objid:94 link_type:MPLS local_label:16 outlabel:(0, 0) flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x60000033 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1610612787 lbl:0 smac:d4ad.71b5.dde4 dmac:a0f8.4911.d1d6 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0b284a2cd8, ri_id:0x2e phdl:0xe9000057, ref_cnt:1 si:0x7f0b284a3048, si_id:0x4009, di_id:0x1 ADJ:objid:63 {link_type:MPLS ifnum:0x41, si:0x2d000023, } LABEL:objid:95 link_type:MPLS local_label:16 outlabel:(0, 0) flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x30000034 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:805306420 lbl:0 smac:d4ad.71b5.ddc2 dmac:a0f8.4911.d1d8 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0b284a57c8, ri_id:0x30 phdl:0x67000059, ref_cnt:1 si:0x7f0b284a6008, si_id:0x400a, di_id:0x61 ADJ:objid:68 {link_type:MPLS ifnum:0x43, si:0xef000026, } C9500-P#show platform software fed switch active mpls forwarding label 17 detail LENTRY:label:17 nobj:(LB, 106) lentry_hdl:0xf6000005 modify_cnt:1 backwalk_cnt:0 lspa_handle:0 AAL: id:4127195141 lbl:17 eos0:[adj_hdl:0x44000002, hw_hdl:0x7f0b284ce2f8] eos1:[adj_hdl:0x44000002, hw_hdl:0x7f0b284ce0e8] deagg_vrf_id = 0 lspa_handle:0 LB:obj_id:106 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0x44000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:1140850690 af:0 ecr_type:0 ref:2 ecrh:0x7f0b284a3998(28:2) hwhdl:675953048 ::0x7f0b284b4268,0x7f0b284a1d78,0x7f0b284b4268,0x7f0b284a1d78 Sw Enh ECR scale: objid:106 llabel:17 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0x44000002 ecr_hwhdl:0x7f0b284a3998 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:4127195192 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:1207959601 sih:0x7f0b284b4268(181) di_id:23709 rih:0x7f0b284b3ca8(31) adj_lentry [eos0:0x7f0b284c38e8 eos1:0x7f0b284cd858] ecr_adj: id:1157627961 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:67108914 sih:0x7f0b284a1d78(182) di_id:23709 rih:0x7f0b284b47d8(44) adj_lentry [eos0:0x7f0b284c3af8 eos1:0x7f0b284cdb28] ecr_prefix_adj: id:3707764794 (ref:1) sih:0x7f0b284c5028(184) di_id:23709 rih:0x7f0b284c4c48(60) LABEL:objid:104 link_type:MPLS local_label:17 outlabel:(0, 0) flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xf6000038 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:4127195192 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0b284ceaa8, ri_id:0x38 phdl:0x76000058, ref_cnt:1 si:0x7f0b284ceeb8, si_id:0x400b, di_id:0x2 ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x1f000028, } LABEL:objid:105 link_type:MPLS local_label:17 outlabel:(0, 0) flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x45000039 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:1157627961 lbl:0 smac:d4ad.71b5.ddf1 dmac:70d3.79be.ae61 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0b284c4588, ri_id:0x3a phdl:0x5500005a, ref_cnt:1 si:0x7f0b284d0548, si_id:0x400c, di_id:0x62 ADJ:objid:78 {link_type:MPLS ifnum:0x44, si:0x4900002a, }
Programação de etiqueta LDP do C9300-PE-2:
Valide o rótulo LDP local anunciado ao PE remoto, não valide o rótulo LDP remoto. Comece verificando a etiqueta da perspectiva do FED e depois faça um retrocesso para FMAN RP e FMAN FP.
***Software LDP Label Programming***
C9300-PE-2#show mpls forwarding-table Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 Pop Label 192.168.1.3/32 0 Gi2/0/2 10.0.0.13 Pop Label 192.168.1.3/32 0 Gi2/0/3 10.0.0.17 17 16 192.168.1.2/32 0 Gi2/0/2 10.0.0.13 <-- LDP Label 17 is advertised to Remote PE 192.168.1.2 16 192.168.1.2/32 0 Gi2/0/3 10.0.0.17 18 Pop Label 10.0.0.4/30 0 Gi2/0/2 10.0.0.13 Pop Label 10.0.0.4/30 0 Gi2/0/3 10.0.0.17 19 Pop Label 10.0.0.8/30 0 Gi2/0/2 10.0.0.13 Pop Label 10.0.0.8/30 0 Gi2/0/3 10.0.0.17 20 No Label 10.0.0.20/30[V] 630 aggregate/RED 21 No Label 192.168.2.0/24[V] \ 0 Gi2/0/1 10.0.0.22 ***FMAN RP Label Programming***
C9300-PE-2#show platform software mpls switch active r0 label index 106 <-- Use the objid values from the FED commands Label OCE 0x6a -> OBJ_ADJACENCY (0x4b) Flags: Real, Number of labels in the OCE: 1 Label values: 0x10 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480637358 C9300-PE-2#show platform software mpls switch active r0 label index 107 <-- Use the objid values from the FED commands Label OCE 0x6b -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0x10 Backup flags: Pop, UHP, backup label 0x100001 OM handle: 0x3480638c10
***FMAN FP LDP Label Programming*** C9300-PE-2#show platform software mpls switch active f0 label index 106 Label OCE 0x6a -> OBJ_ADJACENCY (0x4b) Flags: Real, Number of labels in the OCE: 1 Label values: 0x10 Backup flags: Pop, UHP, backup label 0x100001 aom id: 548, CPP handle: 0xdeadbeef (created) C9300-PE-2#show platform software mpls switch active f0 label index 107 Label OCE 0x6b -> OBJ_ADJACENCY (0x4e) Flags: Real, Number of labels in the OCE: 1 Label values: 0x10 Backup flags: Pop, UHP, backup label 0x100001 aom id: 549, CPP handle: 0xdeadbeef (created) C9300-PE-2#show platform software object-manager switch active f0 object 548 <-- Use the aom id value from the previous commands Object identifier: 548 Description: label 0x6a Status: Done, Epoch: 0, Client data: 0x24843d8 C9300-PE-2#show platform software object-manager switch active f0 object 548 parents <-- Use the aom id value from the previous commands Object identifier: 509 Description: adj 0x4b, Flags None Status: Done C9300-PE-2#show platform software object-manager switch active f0 object 549 <-- Use the aom id value from the previous commands Object identifier: 549 Description: label 0x6b Status: Done, Epoch: 0, Client data: 0x2484518 C9300-PE-2#show platform software object-manager switch active f0 object 549 parents <-- Use the aom id value from the previous commands Object identifier: 513 Description: adj 0x4e, Flags None Status: Done
***FED LDP Label Programming*** C9300-PE-2#show platform software fed switch active mpls forwarding label 17 detail LENTRY:label:17 nobj:(LB, 108) lentry_hdl:0x64000005 modify_cnt:1 backwalk_cnt:0 lspa_handle:0 AAL: id:1677721605 lbl:17 eos0:[adj_hdl:0xa0000002, hw_hdl:0x7f0650a5c8e8] eos1:[adj_hdl:0xa0000002, hw_hdl:0x7f0650a5b908] deagg_vrf_id = 0 lspa_handle:0 LB:obj_id:108 link_type:IP num_choices:2 Flags:0 mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0xa0000002 old_ecrh:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0 bwalk:[req:0 in_prog:0 nested:0] AAL: ecr:id:2684354562 af:0 ecr_type:0 ref:7 ecrh:0x7f0650a62888(28:2) hwhdl:1353066632 ::0x7f0650a60998,0x7f0650a630d8,0x7f0650a60998,0x7f0650a630d8 Sw Enh ECR scale: objid:108 llabel:17 eos:1 #adjs:2 mixed_adj:0 reprogram_hw:0 ecrhdl:0xa0000002 ecr_hwhdl:0x7f0650a62888 mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0 ecr_adj: id:436207667 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:2113929262 sih:0x7f0650a60998(178) di_id:20507 rih:0x7f0650a60378(50) adj_lentry [eos0:0x7f0650a877d8 eos1:0x7f0650a1cf78] ecr_adj: id:3976200246 is_mpls_adj:1 l3adj_flags:0x100000 recirc_adj_id:1509949487 sih:0x7f0650a630d8(179) di_id:20507 rih:0x7f0650a62b18(51) adj_lentry [eos0:0x7f0650a87a48 eos1:0x7f0650a1d188] ecr_prefix_adj: id:2919235640 (ref:1) sih:0x7f0650a87558(180) di_id:20507 rih:0x7f0650a871d8(68) LABEL:objid:106 link_type:MPLS local_label:17 outlabel:(16, 0) <-- Used in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x1a000033 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:436207667 lbl:0 smac:70d3.79be.ae71 dmac:d4ad.71b5.ddd6 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0650a67d48, ri_id:0x3a phdl:0x9f00004b, ref_cnt:1 si:0x7f0650a65408, si_id:0x4010, di_id:0x535f ADJ:objid:75 {link_type:MPLS ifnum:0x36, si:0x35000023, } LABEL:objid:107 link_type:MPLS local_label:17 outlabel:(16, 0) <-- Used in previous commands flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xed000036 unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0 AAL: id:3976200246 lbl:0 smac:70d3.79be.ae61 dmac:d4ad.71b5.ddf1 sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119) vlan_id:0 vrf_id:0 ri:0x7f0650a6f4f8, ri_id:0x40 phdl:0x8400004c, ref_cnt:1 si:0x7f0650a73088, si_id:0x4013, di_id:0x5360 ADJ:objid:78 {link_type:MPLS ifnum:0x37, si:0xa2000025, }
Solucionar problemas de escala de hardware
Esta seção disponibiliza informações para a solução de problemas de configuração.
Syslogs de hardware MPLS
Se você ficar sem um recurso específico, como rótulos MPLS, a mensagem SYSLOG será gerada pelo sistema.
Pontos principais a serem lembrados
- O RÓTULO MPLS é usado para a disposição do rótulo. (Este recurso é consumido quando os prefixos são aprendidos de um CE local)
- O LSPA é usado para imposição de rótulo. (Este recurso é consumido quando os prefixos são aprendidos de um PE remoto)
| Mensagem de registro MPLS | Definição | Ação de Recuperação |
| %FED_L3_ERRMSG-3-RSRC_ERR: Switch 1 R0/0: alimentado: falha ao alocar recurso de hardware para entrada de fib devido à exaustão do recurso de hardware |
O hardware reservado para prefixos IP está sem espaço (EM ou TCAM) |
Execute uma destas ações para reduzir o número de prefixos aprendidos pelo PE local ou remoto: 1. Resuma os prefixos em CE 2. Alterar o modo de alocação de rótulo de per-prefix para per-vrf |
| %FED_L3_ERRMSG-3-mpls_out_of_resource: Switch 1 R0/0: alimentação: Sem recurso para MPLS LABEL ENTRY. Falha ao programar o rótulo local:8205 (8192/8192) no hardware |
Alocação de rótulo local: o hardware reservado para rótulos locais de MPLS está sem espaço (EM ou TCAM) |
Execute uma destas ações para reduzir o número de rótulos usados no PE local: 1. Resuma os prefixos no CE local ou no PE local 2. Alterar o modo de alocação de rótulo de per-prefix para per-vrf no PE local |
| %FED_L3_ERRMSG-3-MPLS_LENTRY_PAUSE: Switch 1 R0/0: alimentação: Limite crítico atingido para o recurso MPLS LABEL ENTRY. Criação de entrada PAUSADA. |
Alocação de rótulo local: O hardware reservado para as etiquetas locais de MPLS está sem espaço (EM ou TCAM) |
Execute uma destas ações para reduzir o número de rótulos usados no PE local: 1. Resuma os prefixos no CE local ou no PE local 2. Alterar o modo de alocação de rótulo de per-prefix para per-vrf no PE local |
| %FED_L3_ERRMSG-3-mpls_out_of_resource: Switch 1 R0/0: alimentação: Sem recurso para LSPA MPLS. Falha ao programar no hardware |
Alocação remota de rótulo: o hardware reservado para rótulos remotos LSPA ficou sem espaço |
Execute uma destas ações para reduzir o número de rótulos usados em PE remoto: 1. Resuma prefixos em CE remoto ou PE remoto 2. Alterar o modo de alocação de rótulo de per-prefix para per-vrf no PE remoto |
Comandos de validação de hardware
O comando show platform hardware fed ative fwd-asic resource tcam use é o primeiro lugar que você deseja avaliar se tem um problema de escala de hardware. Ele exibe informações por ASIC.
Esta seção mostra um prefixo de aprendizagem PE do BGP em Vrf MPLS com os parâmetros descritos aqui:
- A alocação de rótulo por prefixo padrão é usada
- PE é C9300-48U com Cisco IOS-XE 17.3.4
- CE é Ixia como um vizinho de BGP que anuncia prefixos a uma interface em VRF MPLS
- O comprimento do prefixo usado é /28. Assim, a plataforma usa TCAM para comprimentos de prefixo /31 ou menor
- Esta plataforma usa memória EM para rótulos MPLS/BGP primeiro e depois transborda para TCAM se EM ficar cheio
Topologia
Uso de recursos da linha de base
Antes da adição de qualquer prefixo, há uma utilização básica:
- Essa linha de base foi tomada depois que os vizinhos LDP MPLS foram formados na tabela global
- Nessa linha de base, os prefixos VPNv4 são adicionados ao VRF MPLS
- Seus números de linha de base podem variar. Depende do que já está programado no switch
C9300-48U#show version | inc IOS
Cisco IOS XE Software, Version 17.03.04
Cisco IOS Software [Amsterdam], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.3.4, RELEASE SOFTWARE (fc3)
C9300-48U#show platform hardware fed switch active fwd-asic resource tcam utilization Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable CAM Utilization for ASIC [0] Table Subtype Dir Max Used %Used V4 V6 MPLS Other ------------------------------------------------------------------------------------------------------ Mac Address Table EM I 32768 20 0.06% 0 0 0 20 Mac Address Table TCAM I 1024 21 2.05% 0 0 0 21 L3 Multicast EM I 8192 0 0.00% 0 0 0 0 L3 Multicast TCAM I 512 9 1.76% 3 6 0 0 L2 Multicast EM I 8192 0 0.00% 0 0 0 0 L2 Multicast TCAM I 512 11 2.15% 3 8 0 0 IP Route Table EM I 24576 23 0.09% 14 0 9 0 <-- 23 EM (hash) base usage IP Route Table TCAM I 8192 25 0.31% 12 10 2 1 <-- 25 TCAM base usage
C9300-48U#show platform software fed switch active mpls summary | b Resource shar
Resource sharing info:
SI: 4/65536
RI: 10/65536
Well Known Index: 49/2048
Tcam: 21/57344
lv1_ecr: 0/64
lv2_ecr: 0/256
lspa: 0/16385
label_stack_id: 2/65537
vpn_spoke_id: 0/255
indirect_si: 0/255
RSM resource database stats:
Num of (L3+mpls) ADJ entries allocated: 36/131072
Num of LABEL entries allocated: 4/8192 <-- Baseline label usage = 4 (label entries allocated on local PE-CE side)
Num of LSPA entries allocated: 0/8192 <-- LSPA resource used when prefix learnt from another PE, not from a local CE (The SDM template determines max value)
Num of local adjs in mpls adjs: 3
Num of SI stats allocated: 6/49152
Adjs stats allocated by MPLS:
Num of mpls adjs: 11
Num of L3 adjs: 0
Num of VPN prefix_id: 0
<...snip...>
Other MPLS resource alloc error stats: <-- reported resource allocation issues shown here
LENTRY out-of-resource errors: 0
LENTRY general errors: 0
LSPA out-of-resource errors: 0
LSPA general errors: 0
ADJ out-of-resource errors: 0
SI stats alloc error: 0
MPLS ADJ stats error: 0
MPLS ADJ stats last error rc: 0
Adicionar prefixos 1000 BGP VPNv4
Vizinho (Ixia) criado com 1000 prefixos adicionados ao VRF MPLS do CE
9300 PE local (conectado ao CE)
C9300-48U#show bgp vpnv4 unicast all summary
BGP router identifier 10.0.0.1, local AS number 65000
<...snip...> Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.0.0.5 4 65000 102 304 3001 0 0 01:28:23 0 192.168.1.2 4 65005 102 5 3001 0 0 00:00:58 1000 <-- PE learns 1000 prefixes from CE device
C9300-48U#show bgp vpnv4 unicast all | count /28
Number of lines which match regexp = 1000 <-- All 1000 prefixes are /28
C9300-48U#show platform hardware fed switch active fwd-asic resource tcam utilization Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable CAM Utilization for ASIC [0] Table Subtype Dir Max Used %Used V4 V6 MPLS Other ------------------------------------------------------------------------------------------------------ Mac Address Table EM I 32768 20 0.06% 0 0 0 20 Mac Address Table TCAM I 1024 21 2.05% 0 0 0 21 L3 Multicast EM I 8192 0 0.00% 0 0 0 0 L3 Multicast TCAM I 512 9 1.76% 3 6 0 0 L2 Multicast EM I 8192 0 0.00% 0 0 0 0 L2 Multicast TCAM I 512 11 2.15% 3 8 0 0 IP Route Table EM I 24576 2023 8.23% 14 0 2009 0 IP Route Table TCAM I 8192 1025 12.51% 1012 10 2 1
<-- 25 base + 1000 /28 prefixes = 1025 TCAM entries
<-- MPLS labels are added to EM, and each MPLS label uses 2 entries (one IPv4 prefix, and one MPLS label results in 3 entries used in hardware)
C9300-48U#show platform software fed switch active mpls summary | b Resource shar Resource sharing info: SI: 4/65536 RI: 1010/65536 Well Known Index: 49/2048 Tcam: 1021/57344 lv1_ecr: 0/64 lv2_ecr: 0/256 lspa: 0/16385 label_stack_id: 1002/65537 vpn_spoke_id: 0/255 indirect_si: 0/255 RSM resource database stats: Num of (L3+mpls) ADJ entries allocated: 1036/131072 Num of LABEL entries allocated: 1004/8192 <-- Increased by 1000 on local PE Num of LSPA entries allocated: 0/8192 <-- No prefixes learnt from remote PE, no LSPA allocated Num of local adjs in mpls adjs: 3 Num of SI stats allocated: 1006/49152 Adjs stats allocated by MPLS: Num of mpls adjs: 1011 Num of L3 adjs: 0 Num of VPN prefix_id: 0 <...snip...> Other MPLS resource alloc error stats: <-- no resource allocation issues LENTRY out-of-resource errors: 0 LENTRY general errors: 0 LSPA out-of-resource errors: 0 LSPA general errors: 0 ADJ out-of-resource errors: 0 SI stats alloc error: 0 MPLS ADJ stats error: 0 MPLS ADJ stats last error rc: 0
<-- Resources shown in baseline outputs are now increased by 1000
PE remoto 9500H (aprendido sobre MPLS)
C9500-24Y4C#show platform hardware fed active fwd-asic resource tcam utilization Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable CAM Utilization for ASIC [0] Table Subtype Dir Max Used %Used V4 V6 MPLS Other ------------------------------------------------------------------------------------------------------ Mac Address Table EM I 32768 19 0.06% 0 0 0 19 Mac Address Table TCAM I 768 21 2.73% 0 0 0 21 L3 Multicast EM I 32768 0 0.00% 0 0 0 0 L3 Multicast TCAM I 768 6 0.78% 3 3 0 0 L2 Multicast TCAM I 2304 7 0.30% 3 4 0 0 IP Route Table EM/LPM I 212992 1012 0.48% 1003 0 9 0 IP Route Table TCAM I 1536 28 1.82% 23 3 2 0
CTS Cell Matrix/VPN
Label EM O 32768 992 3.03% 0 0 992 0 <-- MPLS VPN used 992 entries
CTS Cell Matrix/VPN
Label TCAM O 768 9 1.17% 0 0 8 1
<-- 1000 /28 IPv4 prefixes learned from remote PE (On the 9500HP these /28 prefixes are be stored in EM/LPM memory, not TCAM)
<-- Hardware shared between CTS and VPN (resource is used when prefixes learned PE-PE, label imposition)
C9500-24Y4C#show platform software fed active mpls summary | b Resource shar Resource sharing info: SI: 4/131072 RI: 11/98304 Well Known Index: 48/2048 Tcam: 20/245760 lv1_ecr: 0/64 lv2_ecr: 0/256 lspa: 1000/65536 label_stack_id: 2/65537 vpn_spoke_id: 0/255 indirect_si: 0/255 RSM resource database stats: Num of (L3+mpls) ADJ entries allocated: 37/196608 Num of LABEL entries allocated: 4/45056 <-- LABEL does not increase (no prefixes learnt from a local CE) Num of LSPA entries allocated: 1000/32768 <-- LSPA usage increased by 1000 (these prefixes require label stack to reach) Num of local adjs in mpls adjs: 4 Num of SI stats allocated: 6/49152 Adjs stats allocated by MPLS: Num of mpls adjs: 12 Num of L3 adjs: 0 Num of VPN prefix_id: 1000 AL MPLS SI/RI resource alloc stats: SI allocated: 1 RI allocated: 6 SI_STATS allocated: 6 Unknowns allocs: 0 Alloc no resource: 0 Alloc errors: 0 Free errors: 0 Invalid free: 0 Free unknown: 0 Other MPLS resource alloc error stats: <-- no resource allocation issues LENTRY out-of-resource errors: 0 LENTRY general errors: 0 LSPA out-of-resource errors: 0 LSPA general errors: 0 ADJ out-of-resource errors: 0 SI stats alloc error: 0 MPLS ADJ stats error: 0 MPLS ADJ stats last error rc: 0
<-- Different resources are allocated to reach a local prefix (LABEL) versus a remote prefix (LSPA)
Rótulo MPLS e limite de escala IPv4 e correção
Na maioria dos casos, quando o recurso MPLS é usado e muitos recursos de hardware são consumidos, uma alteração na alocação de rótulo de (padrão) por prefixo para por vrf pode ajudar. Neste exemplo, considere a alocação de recursos antes e depois (neste caso, o 9500 é o dispositivo CE-PE).
### Usage with per-prefix label allocation ###
C9500-24Y4C#show platform hardware fed active fwd-asic resource tcam utilization Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable CAM Utilization for ASIC [0] Table Subtype Dir Max Used %Used V4 V6 MPLS Other ------------------------------------------------------------------------------------------------------ Mac Address Table EM I 32768 19 0.06% 0 0 0 19 Mac Address Table TCAM I 768 21 2.73% 0 0 0 21 L3 Multicast EM I 32768 0 0.00% 0 0 0 0 L3 Multicast TCAM I 768 6 0.78% 3 3 0 0 L2 Multicast TCAM I 2304 7 0.30% 3 4 0 0 IP Route Table EM/LPM I 212992 3023 1.42% 1014 0 2009 0 <-- 1 IPv4 prefix entry + 2 entries for labels (2 labels created per every 1 IPv4 prefix) IP Route Table TCAM I 1536 17 1.11% 12 3 2 0
### New usage after change to per-vrf lable allocation ###
C9500-24Y4C(config)#mpls label mode vrf MPLS protocol all-afs per-vrf
C9500-24Y4C#show bgp vpnv4 unicast all BGP table version is 164901, local router ID is 10.0.0.5 Network Next Hop Metric LocPrf Weight Path Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter, x best-external, a additional-path, c RIB-compressed, t secondary path, L long-lived-stale, Origin codes: i - IGP, e - EGP, ? - incomplete RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 1:1 (default for vrf MPLS) *> 172.30.0.0/24 192.168.3.2 2219 0 65100 65101 65102 65103 {65104} e <...snip...>
C9500-24Y4C#show bgp vpnv4 unicast all 172.30.0.0 BGP routing table entry for 1:1:172.30.0.0/24, version 163902 Paths: (1 available, best #1, table MPLS) Advertised to update-groups: 8 Refresh Epoch 1 65100 65101 65102 65103 {65104} 192.168.3.2 (via vrf MPLS) from 192.168.3.2 (192.168.3.2) Origin EGP, metric 2219, localpref 100, valid, external, best Extended Community: RT:1:1 mpls labels in/out IPv4 VRF Aggr:18116/nolabel <-- Verify you see a 'VRF Aggr' label type rx pathid: 0, tx pathid: 0x0 Updated on Dec 9 2021 19:50:22 UTC
### Usage with per-vrf label allocation ###
Allocation on both local and remote PE is dramatically reduced via change to label allocation mode
local switch (PE-CE) C9500-24Y4C#show platform hardware fed active fwd-asic resource tcam utilization Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable CAM Utilization for ASIC [0] Table Subtype Dir Max Used %Used V4 V6 MPLS Other ------------------------------------------------------------------------------------------------------ Mac Address Table EM I 32768 19 0.06% 0 0 0 19 Mac Address Table TCAM I 768 21 2.73% 0 0 0 21 L3 Multicast EM I 32768 0 0.00% 0 0 0 0 L3 Multicast TCAM I 768 6 0.78% 3 3 0 0 L2 Multicast TCAM I 2304 7 0.30% 3 4 0 0 IP Route Table EM/LPM I 212992 1025 0.48% 1014 0 11 0 <-- one local LABEL used to reach the CE learnt prefixes IP Route Table TCAM I 1536 17 1.11% 12 3 2 0 QOS ACL TCAM I 1024 45 4.39% 15 20 0 10
remote switch (PE-PE) C9300-48U#show platform hardware fed switch active fwd-asic resource tcam utilization Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable CAM Utilization for ASIC [0] Table Subtype Dir Max Used %Used V4 V6 MPLS Other ------------------------------------------------------------------------------------------------------ <...snip...> IP Route Table EM I 24576 23 0.09% 14 0 9 0 IP Route Table TCAM I 8192 1025 12.51% 1012 10 2 1 <-- Still 1:1 usage for IPv4 prefixes <...snip...> CTS Cell Matrix/VPN Label EM O 8192 1 0.01% 0 0 1 0 <-- one remote LSPA used to reach the PE learnt prefixes
Comandos para TAC
Os problemas de recursos de hardware mais comuns relacionados ao MPLS são abordados neste guia, com as etapas de correção apropriadas. No entanto, caso este guia não resolva seu problema, colete a lista de comandos mostrada e anexe-os à solicitação de serviço.
show ip route summary
show ip bgp vpnv4 all | redirect flash:bgp_vpnv4_all
show ip bgp vpnv4 all summary
show ip route vrf <vrf-name> summary
show mpls forwarding-table summary
show ip cef vrf <name> | redirect flash:sh_ip_cef_vrf_<name>
show ip cef vrf <name> summary
show platform software fed switch active ip route summary
show platform software mpls switch <all switches> f0 forwarding-table
show platform software mpls switch <all switches> f0 label
show platform software mpls switch <all switches> f0 eos
show platform software object-manager switch <all switches> f0 error-object
show platform software object-manager switch <all switches> f0 pending-issue-update
show platform software fed switch <all switches> mpls label_oce all detail
show platform software fed switch <all switches> mpls eos all det
show platform software fed switch <all switches> mpls summary
show platform software fed switch active mpls forwarding all detail
show platform software object-manager switch 1 f0 statistics
show tech-support mpls | redirect flash:sh_tech_mpls
show logging | redirect flash:sh_logging_console
show platform hard fed switch active fwd resource tcam table sghash asic 0 format 0 | redirect flash:vpn_lspa
request platform software trace archive last 30 days target flash
Informações Relacionadas
Histórico de revisões
| Revisão | Data de publicação | Comentários |
|---|---|---|
3.0 |
08-Mar-2022 |
Formatação de tabela ajustada |
2.0 |
03-Mar-2022 |
Mais uma revisão de título |
1.0 |
25-Feb-2022 |
Versão inicial |
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