O conjunto de documentação deste produto faz o possível para usar uma linguagem imparcial. Para os fins deste conjunto de documentação, a imparcialidade é definida como uma linguagem que não implica em discriminação baseada em idade, deficiência, gênero, identidade racial, identidade étnica, orientação sexual, status socioeconômico e interseccionalidade. Pode haver exceções na documentação devido à linguagem codificada nas interfaces de usuário do software do produto, linguagem usada com base na documentação de RFP ou linguagem usada por um produto de terceiros referenciado. Saiba mais sobre como a Cisco está usando a linguagem inclusiva.
A Cisco traduziu este documento com a ajuda de tecnologias de tradução automática e humana para oferecer conteúdo de suporte aos seus usuários no seu próprio idioma, independentemente da localização. Observe que mesmo a melhor tradução automática não será tão precisa quanto as realizadas por um tradutor profissional. A Cisco Systems, Inc. não se responsabiliza pela precisão destas traduções e recomenda que o documento original em inglês (link fornecido) seja sempre consultado.
Este documento descreve por que o roteador de filial secundário falha ao aprender o mapeamento de RP automático (ponto de rendezvous) e fornece etapas para resolver o problema.
Em uma configuração de roteador de borda dupla em uma filial SD-WAN, o roteador SD-WAN principal pode aprender as mensagens de mapeamento de RP automático, enquanto o roteador SD-WAN secundário não. Se o roteador SD-WAN eleito como Protocol Independent Multicast (PIM) Assert Forwarder não aprendeu os mapeamentos de RP automático, os switches downstream na filial também não receberão esses mapeamentos.
ip pim rp-address 169.1.224.1 override
ip pim autorp listener
ip pim send-rp-announce Loopback1 scope 30 group-list RP-Groups
ip pim send-rp-discovery Loopback0 scope 30
ip pim ssm range PIM-SSM-Range
dc1-9k-01#sh ip access-lists RP-Groups
Standard IP access list RP-Groups
30 permit 239.1.0.0, wildcard bits 0.0.255.255
Branch-9k#sh ip pim rp mapping
PIM Group-to-RP Mappings
Branch-9k#
Configurações PIM no switch:
Branch-9k#sh run | in pim
ip pim sparse-mode
ip pim sparse-mode
ip pim sparse-mode
ip pim autorp listener
ip pim ssm range PIM-SSM-Range
Branch-9k#
Branch-C8300-01#sh ip mfib vrf 10 224.0.1.40
Entry Flags: C - Directly Connected, S - Signal, IA - Inherit A flag,
ET - Data Rate Exceeds Threshold, K - Keepalive
DDE - Data Driven Event, HW - Hardware Installed
ME - MoFRR ECMP entry, MNE - MoFRR Non-ECMP entry, MP - MFIB
MoFRR Primary, RP - MRIB MoFRR Primary, P - MoFRR Primary
MS - MoFRR Entry in Sync, MC - MoFRR entry in MoFRR Client,
e - Encap helper tunnel flag.
I/O Item Flags: IC - Internal Copy, NP - Not platform switched,
NS - Negate Signalling, SP - Signal Present,
A - Accept, F - Forward, RA - MRIB Accept, RF - MRIB Forward,
MA - MFIB Accept, A2 - Accept backup,
RA2 - MRIB Accept backup, MA2 - MFIB Accept backup
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kbits per second
Other counts: Total/RPF failed/Other drops
I/O Item Counts: HW Pkt Count/FS Pkt Count/PS Pkt Count Egress Rate in pps
VRF 10
(*,224.0.1.40) Flags: C HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 1741/1741/0
Lspvif0, LSM/0, RPF-ID: *, Flags: F NS
Pkts: 0/0/0 Rate: 0 pps
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.1.10.3,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 29642/29642/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.1.10.4,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 29939/29939/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A NS
GigabitEthernet0/0/0.100 Flags: IC
(169.1.20.2,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 47783/47783/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.1.20.6,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 47720/47720/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.1.20.10,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 47784/47784/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.1.20.14,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 47724/47724/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.1.100.7,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 60088/60088/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.2.20.2,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 47680/47680/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
(169.2.20.6,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 47640/47640/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: IC
Branch-C8300-01#
Branch-C8300-02#sh ip mfib vrf 10 224.0.1.40
Entry Flags: C - Directly Connected, S - Signal, IA - Inherit A flag,
ET - Data Rate Exceeds Threshold, K - Keepalive
DDE - Data Driven Event, HW - Hardware Installed
ME - MoFRR ECMP entry, MNE - MoFRR Non-ECMP entry, MP - MFIB
MoFRR Primary, RP - MRIB MoFRR Primary, P - MoFRR Primary
MS - MoFRR Entry in Sync, MC - MoFRR entry in MoFRR Client,
e - Encap helper tunnel flag.
I/O Item Flags: IC - Internal Copy, NP - Not platform switched,
NS - Negate Signalling, SP - Signal Present,
A - Accept, F - Forward, RA - MRIB Accept, RF - MRIB Forward,
MA - MFIB Accept, A2 - Accept backup,
RA2 - MRIB Accept backup, MA2 - MFIB Accept backup
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kbits per second
Other counts: Total/RPF failed/Other drops
I/O Item Counts: HW Pkt Count/FS Pkt Count/PS Pkt Count Egress Rate in pps
VRF 10
(*,224.0.1.40) Flags: C HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 10549/10549/0
Lspvif0, LSM/0, RPF-ID: *, Flags: F NS
Pkts: 0/0/0 Rate: 0 pps
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.1.10.3,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A NS
GigabitEthernet0/0/0.100 Flags: F IC NS <==
Pkts: 0/0/0 Rate: 0 pps
(169.1.10.4,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A NS
GigabitEthernet0/0/0.100 Flags: F IC NS <==
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.2,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.6,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.10,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A NS
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.14,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A NS
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.2.20.2,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
(169.2.20.6,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Lspvif0, LSM/0, RPF-ID: *, Flags: A
GigabitEthernet0/0/0.100 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
Branch-C8300-02#
A flag F que está sendo definida indica que o roteador Branch-C8300-02 é o Encaminhador designado para AutoRP e para o tráfego multicast. Quando os vizinhos PIM estão no mesmo domínio de broadcast, o encaminhador PIM Assert/Designated Forwarder é escolhido. O roteador com o maior endereço IP é escolhido como PIM Assert Forwarder/Designated Forwarder. (A distância administrativa (AD) e a métrica eram as mesmas.) Neste cenário, o roteador da filial 2 tem um endereço IP mais alto em comparação ao roteador da filial 1:
Branch-C8300-01#sh run interface Gi0/0/0.100
Building configuration...
Current configuration : 336 bytes
!
interface GigabitEthernet0/0/0.100
description OSPF peering interface1
encapsulation dot1Q 100
vrf forwarding 10
ip address 169.101.10.1 255.255.255.240
no ip redirects
ip pim sparse-mode
ip nbar protocol-discovery
ip ospf network broadcast
ip ospf dead-interval 40
ip ospf 10 area 0
ip ospf cost 10
arp timeout 1200
end
Branch-C8300-02#sh run interface Gi0/0/0.100
Building configuration...
Current configuration : 336 bytes
!
interface GigabitEthernet0/0/0.100
description OSPF peering interface1
encapsulation dot1Q 100
vrf forwarding 10
ip address 169.101.10.2 255.255.255.240
no ip redirects
ip pim sparse-mode
ip nbar protocol-discovery
ip ospf network broadcast
ip ospf dead-interval 40
ip ospf 10 area 0
ip ospf cost 15
arp timeout 1200
end
Branch-C8300-01#sh ip pim vrf 10 rp mapping
PIM Group-to-RP Mappings
Group(s) 239.195.0.0/16
RP 10.125.125.1 (?), v2v1
Info source: 169.254.100.9 (?), elected via Auto-RP
Uptime: 1w0d, expires: 00:02:31
Branch-C8300-01#
Branch-C8300-02#sh ip pim vrf 10 rp mapping
PIM Group-to-RP Mappings
Branch-C8300-02#
DC-8500-01#sh ip mfib vrf 10 224.0.1.40
Entry Flags: C - Directly Connected, S - Signal, IA - Inherit A flag,
ET - Data Rate Exceeds Threshold, K - Keepalive
DDE - Data Driven Event, HW - Hardware Installed
ME - MoFRR ECMP entry, MNE - MoFRR Non-ECMP entry, MP - MFIB
MoFRR Primary, RP - MRIB MoFRR Primary, P - MoFRR Primary
MS - MoFRR Entry in Sync, MC - MoFRR entry in MoFRR Client,
e - Encap helper tunnel flag.
I/O Item Flags: IC - Internal Copy, NP - Not platform switched,
NS - Negate Signalling, SP - Signal Present,
A - Accept, F - Forward, RA - MRIB Accept, RF - MRIB Forward,
MA - MFIB Accept, A2 - Accept backup,
RA2 - MRIB Accept backup, MA2 - MFIB Accept backup
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kbits per second
Other counts: Total/RPF failed/Other drops
I/O Item Counts: HW Pkt Count/FS Pkt Count/PS Pkt Count Egress Rate in pps
VRF 10
(*,224.0.1.40) Flags: C HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 294/294/0
TenGigabitEthernet0/0/0.10 Flags: F IC NS
Pkts: 0/0/0 Rate: 0 pps
Lspvif0, LSM/1, RPF-ID: *, Flags: F NS
Pkts: 0/0/0 Rate: 0 pps
(169.1.10.4,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.2,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.6,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.10,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
(169.1.20.14,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
(169.1.100.7,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F <==
Pkts: 0/0/0 Rate: 0 pps
(169.2.20.2,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
(169.2.20.6,224.0.1.40) Flags: HW
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
TenGigabitEthernet0/0/0.10 Flags: A IC
Lspvif0, LSM/1, RPF-ID: *, Flags: F
Pkts: 0/0/0 Rate: 0 pps
Lspvif0 é a interface de túnel virtual, como túnel ponto a multiponto (P2MP), ou seja, um ponto final para vários pontos finais remotos. O túnel Lspvif0 é usado no Multicast SD-WAN. Lspvif0 é o túnel virtual que indica que os pacotes são transmitidos através da sobreposição de SD-WAN.
DC-8500-01#sh interfaces Lspvif0
Lspvif0 is up, line protocol is up
Hardware is
Interface is unnumbered. Using address of SD-WAN-system-intf (169.1.100.3)
MTU 17892 bytes, BW 10000000 Kbit/sec, DLY 5000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation LOOPBACK, loopback not set
Keepalive set (10 sec)
Last input never, output 00:00:10, output hang never
Last clearing of "show interface" counters never
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
3 packets input, 210 bytes, 0 no buffer
Received 0 broadcasts (3 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1628856 packets output, 71967520 bytes, 0 underruns
Output 0 broadcasts (1289488 IP multicasts)
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
LSM/1 na saída MFIB indica a lista de replicação anexada ao túnel Lspvif0.
De acordo com o design do Multicast SD-WAN da Cisco, o roteador DC aprende os roteadores de filial ativados para PIM através do Protocolo de Gerenciamento de Sobreposição (OMP - Overlay Management Protocol) e o IP do sistema desses roteadores de filial é adicionado à lista de replicação.
DC-8500-01#sh SD-WAN omp multicast-auto-discover
Code:
C -> chosen
I -> installed
Red -> redistributed
Rej -> rejected
L -> looped
R -> resolved
S -> stale
Ext -> extranet
Stg -> staged
IA -> On-demand inactive
Inv -> invalid
BR-R -> border-router reoriginated
TGW-R -> transport-gateway reoriginated
ADDRESS SOURCE FROM
FAMILY TENANT VPN ORIGINATOR PEER STATUS
---------------------------------------------------------
ipv4 0 10 169.1.100.3 0.0.0.0 C,Red,R
0 10 169.1.100.4 2.2.2.1 Inv,U
2.2.2.2 Inv,U
0 10 169.101.100.1 2.2.2.1 C,R
2.2.2.2 C,I,R
0 10 169.101.100.2 2.2.2.1 C,R
2.2.2.2 C,I,R
Note: Os pacotes AutoRP do roteador DC serão enviados para os roteadores Branch através do túnel BFD SD-WAN (Dataplane). O roteador DC encapsulará os pacotes AutoRP para o túnel IPsec e os encaminhará para os roteadores Branch.
DC-8500-01#sh mvpn replication lsm-id 1
Repl ID : 1FFFFF LSM ID : 1 Uptime : 1w3d
Path Set ID : 25
Replication branches: 2
IR (169.101.100.1)
Uptime : 1w3d Refcount : 2
Remote Label : 1006
IR (169.101.100.2)
Uptime : 1w3d Refcount : 2
Remote Label : 1004
DC-8500-01#sh platform software SD-WAN f0 next-hop indirect all
Show SD-WAN next-hop oce all :
OCE ID: 0xf8000d9f, OCE Type: SD-WAN_NH_INDIRECT
Indirect: client_handle 0x5649f38aaa80, ppe addr 418b02c0
nhobj_type: SD-WAN_NH_LOCAL_SLA_CLASS, nhobj_handle: 0xf80805cf
label: 1006, dst_vpn: 10, nexthop sys_ip: 169.101.100.1, sla_class: 1
A cadeia OCE indireta é a cadeia de encaminhamento interna criada quando o roteador DC aprende as rotas unicast do respectivo roteador de filial. Isso ocorre de acordo com o design do multicast SD-WAN, em que o multicast utilizará o roteamento unicast para encaminhar informações RP multicast.
A razão para o roteador DC não encaminhar o mapeamento AutoRP para o roteador de filial 02 é porque o OCE indireto foi criado somente para o roteador de filial 01, mas não para o roteador de filial 02. Somente quando a cadeia de encaminhamento interna for estabelecida para o respectivo roteador de filial, o roteador DC encaminhará o mapeamento AutoRP para esse roteador de filial.
DC-8500-01#sh ip route vrf 10 omp
Routing Table: 10
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, m - OMP
n - NAT, Ni - NAT inside, No - NAT outside, Nd - NAT DIA
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
H - NHRP, G - NHRP registered, g - NHRP registration summary
o - ODR, P - periodic downloaded static route, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
& - replicated local route overrides by connected
Gateway of last resort is 169.1.10.1 to network 0.0.0.0
m 169.101.0.0/16 [251/0] via 169.101.100.1, 2w0d, SD-WAN-system-intf
DC-8500-01#
DC-8500-01#sh SD-WAN omp routes 169.101.0.0/16
Code:
C -> chosen
I -> installed
Red -> redistributed
Rej -> rejected
L -> looped
R -> resolved
S -> stale
Ext -> extranet
Inv -> invalid
Stg -> staged
IA -> On-demand inactive
U -> TLOC unresolved
BR-R -> border-router reoriginated
TGW-R -> transport-gateway reoriginated
AFFINITY
PATH ATTRIBUTE GROUP
TENANT VPN PREFIX FROM PEER ID LABEL STATUS TYPE TLOC IP COLOR ENCAP PREFERENCE NUMBER REGION ID REGION PATH
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
0 10 169.101.0.0/16 2.2.2.1 15 1004 R installed 169.101.100.2 public-internet ipsec - None None -
2.2.2.1 19 1006 C,I,R installed 169.101.100.1 biz-internet ipsec - None None -
2.2.2.2 16 1004 R installed 169.101.100.2 public-internet ipsec - None None -
2.2.2.2 21 1006 C,R installed 169.101.100.1 biz-internet ipsec - None None -
DC-8500-01#
A razão para as rotas aprendidas do roteador secundário não serem instaladas no RIB é porque as rotas aprendidas do roteador secundário têm um custo OSPF mais alto em comparação com o roteador primário:
DC-8500-01#sh SD-WAN omp routes 169.101.0.0/16 detail
--------------------------------------------------------------------------
omp route entries for tenant-id 0 vpn 10 route 169.101.0.0/16
--------------------------------------------------------------------------
RECEIVED FROM:
peer 2.2.2.1
path-id 15
label 1004
status R
loss-reason origin-metric
lost-to-peer 2.2.2.1
lost-to-path-id 19
Attributes:
originator 169.101.100.2
type installed
tloc 169.101.100.2, public-internet, ipsec
ultimate-tloc not set
domain-id not set
overlay-id 1
site-id 10
preference not set
affinity-group None
region-id None
region-path not set
route-reoriginator not set
tag not set
origin-proto OSPF-external-1
origin-metric 35
as-path not set
community not set
unknown-attr-len not set
RECEIVED FROM:
peer 2.2.2.1
path-id 19
label 1006
status C,I,R
loss-reason not set
lost-to-peer not set
lost-to-path-id not set
Attributes:
originator 169.101.100.1
type installed
tloc 169.101.100.1, biz-internet, ipsec
ultimate-tloc not set
domain-id not set
overlay-id 1
site-id 10
preference not set
affinity-group None
region-id None
region-path not set
route-reoriginator not set
tag not set
origin-proto OSPF-external-1
origin-metric 30
as-path not set
community not set
unknown-attr-len not set
RECEIVED FROM:
peer 2.2.2.2
path-id 16
label 1004
status R
loss-reason origin-metric
lost-to-peer 2.2.2.2
lost-to-path-id 21
Attributes:
originator 169.101.100.2
type installed
tloc 169.101.100.2, public-internet, ipsec
ultimate-tloc not set
domain-id not set
overlay-id 1
site-id 10
preference not set
affinity-group None
region-id None
region-path not set
route-reoriginator not set
tag not set
origin-proto OSPF-external-1
origin-metric 35
as-path not set
community not set
unknown-attr-len not set
RECEIVED FROM:
peer 2.2.2.2
path-id 21
label 1006
status C,R
loss-reason not set
lost-to-peer not set
lost-to-path-id not set
Attributes:
originator 169.101.100.1
type installed
tloc 169.101.100.1, biz-internet, ipsec
ultimate-tloc not set
domain-id not set
overlay-id 1
site-id 10
preference not set
affinity-group None
region-id None
region-path not set
route-reoriginator not set
tag not set
origin-proto OSPF-external-1
origin-metric 30
as-path not set
community not set
unknown-attr-len not set
DC-8500-01#
omp
no shutdown
send-path-limit 16
ecmp-limit 16
graceful-restart
no as-dot-notation
timers
holdtime 300
advertisement-interval 1
graceful-restart-timer 43200
eor-timer 300
exit
address-family ipv4 vrf 10
advertise ospf external <==
!
address-family ipv6
advertise connected
advertise static
Branch-C8300-02#sh run interface Lo0
Building configuration...
Current configuration : 151 bytes
!
interface Loopback0
description Management loopback
vrf forwarding 10
ip address 169.101.100.2 255.255.255.255
no ip redirects
ip mtu 1500
end
Configurações de OMP no roteador de filial 02 para anunciar rotas conectadas:
omp
no shutdown
overlay-as 65376
send-path-limit 16
ecmp-limit 16
graceful-restart
no as-dot-notation
timers
holdtime 60
advertisement-interval 1
graceful-restart-timer 43200
eor-timer 300
exit
address-family ipv4 vrf 10
advertise ospf external
advertise connected <==
!
address-family ipv6
advertise connected
advertise static
!
!
Agora você verá o mapeamento AutoRP aprendido no roteador de filial 02:
Branch-C8300-02# sh ip pim vrf 10 rp mapping
PIM Group-to-RP Mappings
Group(s) 239.195.0.0/16
RP 10.125.125.1 (?), v2v1
Info source: 169.1.10.4 (terin.net.afrihost.co.za), elected via Auto-RP
Uptime: 00:02:18, expires: 00:02:47
Branch-C8300-02#
Da mesma forma, você pode ver o mapeamento AutoRP aprendido no switch de filial também:
Branch-9k#sh ip pim rp mapping
PIM Group-to-RP Mappings
Group(s) 239.195.0.0/16
RP 10.125.125.1 (?), v2v1
Info source: 169.254.100.9 (?), elected via Auto-RP
Uptime: 00:03:36, expires: 00:02:46
Acl: RP-Region-Ent-Sites, Static-Override
RP: 10.125.125.1 (?)
Quando você inspeciona a saída da cadeia OCE/Forwarding Indireta no roteador DC, ela tem entradas para o system-ip dos roteadores de filial principal e secundário:
DC-8500-01#sh platform software SD-WAN f0 next-hop indirect all
Show SD-WAN next-hop oce all :
OCE ID: 0xf80009bf, OCE Type: SD-WAN_NH_INDIRECT
Indirect: client_handle 0x5649f389fbc0, ppe addr 418b05c0
nhobj_type: SD-WAN_NH_LOCAL_SLA_CLASS, nhobj_handle: 0xf808044f
label: 1006, dst_vpn: 10, nexthop sys_ip: 169.101.100.1, sla_class: 1
OCE ID: 0xf80009df, OCE Type: SD-WAN_NH_INDIRECT
Indirect: client_handle 0x5649f38a11f0, ppe addr 418b06d0
nhobj_type: SD-WAN_NH_LOCAL_SLA_CLASS, nhobj_handle: 0xf808045f
label: 1004, dst_vpn: 10, nexthop sys_ip: 169.101.100.2, sla_class: 1
Agora você vê que o roteador DC RIB tem prefixos aprendidos do roteador de filial 02 também instalados.
DC-8500-01#sh ip route vrf 10 omp
Routing Table: 10
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, m - OMP
n - NAT, Ni - NAT inside, No - NAT outside, Nd - NAT DIA
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
H - NHRP, G - NHRP registered, g - NHRP registration summary
o - ODR, P - periodic downloaded static route, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
& - replicated local route overrides by connected
Gateway of last resort is 169.1.10.1 to network 0.0.0.0
169.101.0.0/16 is variably subnetted, 3 subnets, 3 masks
m 169.101.0.0/16 [251/0] via 169.101.100.1, 13:59:47, SD-WAN-system-intf
m 169.101.10.0/28
[251/0] via 169.101.100.2, 00:07:50, SD-WAN-system-intf
m 169.101.100.2/32
[251/0] via 169.101.100.2, 00:07:50, SD-WAN-system-intf
Ao implementar Multicast sobre Cisco SD-WAN, você deve garantir que todos os roteadores remotos (incluindo roteadores primários e secundários) estejam anunciando prefixo unicast para o roteador SD-WAN mais próximo de RP através de OMP. O multicast SD-WAN aproveita o roteamento unicast para criar uma cadeia de encaminhamento que é necessária para que as informações do plano de controle multicast sejam transmitidas.
Revisão | Data de publicação | Comentários |
---|---|---|
1.0 |
15-May-2025
|
Versão inicial |