Dans le cadre de la documentation associée à ce produit, nous nous efforçons d’utiliser un langage exempt de préjugés. Dans cet ensemble de documents, le langage exempt de discrimination renvoie à une langue qui exclut la discrimination en fonction de l’âge, des handicaps, du genre, de l’appartenance raciale de l’identité ethnique, de l’orientation sexuelle, de la situation socio-économique et de l’intersectionnalité. Des exceptions peuvent s’appliquer dans les documents si le langage est codé en dur dans les interfaces utilisateurs du produit logiciel, si le langage utilisé est basé sur la documentation RFP ou si le langage utilisé provient d’un produit tiers référencé. Découvrez comment Cisco utilise le langage inclusif.
Cisco a traduit ce document en traduction automatisée vérifiée par une personne dans le cadre d’un service mondial permettant à nos utilisateurs d’obtenir le contenu d’assistance dans leur propre langue. Il convient cependant de noter que même la meilleure traduction automatisée ne sera pas aussi précise que celle fournie par un traducteur professionnel.
Ce document explique pourquoi le routeur de la succursale secondaire n'apprend pas le mappage Auto-RP (Rendezvous Point) et fournit des étapes pour résoudre le problème.
Dans une configuration de routeur à double frontière sur un site de filiale SD-WAN, le routeur SD-WAN principal peut apprendre les messages de mappage Auto-RP alors que le routeur SD-WAN secondaire ne les apprend pas. Si le routeur SD-WAN sélectionné en tant que PIM (Protocol Independent Multicast) Assert Forwarder n'a pas appris les mappages Auto-RP, les commutateurs en aval de la filiale ne recevront pas non plus ces mappages.
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#
Configurations PIM sur le commutateur :
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#
L'indicateur F en cours de définition indique que le routeur Branch-C8300-02 est le redirecteur désigné pour AutoRP et pour le trafic de multidiffusion. Lorsque les voisins PIM se trouvent dans le même domaine de diffusion, l'option PIM Assert Forwarder/Designated Forwarder est sélectionnée. Le routeur dont l'adresse IP est la plus élevée est choisi en tant que PIM Assert Forwarder/Designated Forwarder. (La distance administrative (DA) et la métrique étaient identiques.) Dans ce scénario, l’adresse IP du routeur Branch2 est plus élevée que celle du routeur Branch1 :
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 est l'interface de tunnel virtuel comme le tunnel P2MP (Point-to-Multipoint), c'est-à-dire un point d'extrémité vers plusieurs points d'extrémité distants. Le tunnel Lspvif0 est utilisé dans la multidiffusion SD-WAN. Lspvif0 est le tunnel virtuel indiquant que les paquets sont transmis via la superposition 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 dans la sortie MFIB indique la liste de réplication attachée au tunnel Lspvif0.
Conformément à la conception de Cisco SD-WAN Multicast, le routeur DC apprend que les routeurs Branch compatibles PIM via le protocole de gestion de superposition (OMP) et que l'adresse IP système de ces routeurs Branch sont ajoutées à la liste de réplication.
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
Remarque : Les paquets AutoRP du routeur DC sont envoyés aux routeurs Branch via le tunnel BFD SD-WAN (plan de données). Le routeur DC encapsulera les paquets AutoRP dans le tunnel IPsec et les transmettra aux routeurs 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
La chaîne OCE indirecte est la chaîne de transfert interne créée lorsque le routeur DC apprend les routes de monodiffusion à partir du routeur de filiale respectif. Ceci est conforme à la conception de la multidiffusion SD-WAN, où la multidiffusion utilisera le routage de monodiffusion pour transférer les informations RP de multidiffusion.
La raison pour laquelle le routeur DC ne transfère pas le mappage AutoRP au routeur Branch 02 est que l'OCE indirect est construit uniquement pour le routeur Branch 01, mais pas pour le routeur Branch 02. Ce n'est que lorsque la chaîne de transfert interne est établie vers le routeur Branch respectif que le routeur DC transfère le mappage AutoRP à ce routeur Branch.
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#
La raison pour laquelle les routes apprises à partir du routeur secondaire ne sont pas installées sur RIB est que les routes apprises à partir du routeur secondaire ont un coût OSPF plus élevé par rapport au routeur principal :
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
Configurations OMP sur le routeur de filiale 02 pour annoncer les routes connectées :
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
!
!
Vous voyez maintenant le mappage AutoRP appris sur le routeur de branche 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#
De même, vous pouvez voir le mappage AutoRP appris sur le commutateur de branche ainsi :
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 (?)
Lorsque vous inspectez la sortie de la chaîne OCE/Forwarding indirecte sur le routeur DC, elle comporte des entrées pour l'adresse ip système des routeurs de filiale principal et secondaire :
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
Vous voyez maintenant que le routeur RIB de DC a également installé les préfixes appris du routeur de branche 02.
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
Lors de la mise en oeuvre de la multidiffusion sur Cisco SD-WAN, vous devez vous assurer que tous les routeurs distants (y compris les routeurs principal et secondaire) annoncent le préfixe de monodiffusion au routeur SD-WAN plus proche du RP via OMP. La multidiffusion SD-WAN exploite le routage monodiffusion pour créer la chaîne de transmission nécessaire à la transmission des informations du plan de contrôle multidiffusion.
Révision | Date de publication | Commentaires |
---|---|---|
1.0 |
15-May-2025
|
Première publication |