02-01-2024 11:34 AM
In this situation, my Router_A not established a IS-IS session witch other Router_B, and this is a information on interface
This is a network /30, ARP ok conectivity ok
I apply a reboot on router, but not successfuly,
I replaces with another network /30 in router and peer router but the status of (No cfg topology can participate) kept
RP/0/RP0/CPU0:Router_A#show isis interface Te0/0/0/19
Thu Feb 1 16:22:32.096 -03
TenGigE0/0/0/19 Enabled
Adjacency Formation: Disabled (No cfg topology can participate) <<<<<<<<<<<<<<<<<<<<<<
Prefix Advertisement: Disabled (Suppressed in IS-IS cfg)
IPv4 BFD: Enabled
IPv6 BFD: Disabled
BFD Min Interval: 100
BFD Multiplier: 3
Bandwidth: 10000000
Circuit Type: level-2-only
Media Type: P2P
Circuit Number: 0
Measured Delay: Min:- Avg:- Max:- usec
Delay Normalization: Interval:0 Offset:0
Normalized Delay: Min:- Avg:- Max:- usec
RP/0/RP0/CPU0:Router_A#show arp | i 0/19
Thu Feb 1 16:29:54.470 -03
201.1.227.232 - a411.bb3d.7a17 Interface ARPA TenGigE0/0/0/19
201.1.227.233 00:10:00 1c3d.2f3b.71c7 Dynamic ARPA TenGigE0/0/0/19
RP/0/RP0/CPU0:i-br-ma-sls-cc5-hl5g-01#ping 201.1.227.233 source 201.1.227.232
Thu Feb 1 16:30:01.745 -03
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 201.1.227.233, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
RP/0/RP0/CPU0:Router_A#
Solved! Go to Solution.
02-01-2024 11:45 AM
Hello kauemoncao200,
Can you share the configuration?
I've seen this before if ISIS is configured with single-topology, but you don't enable ipv6 address family on the interface.
This will trigger this issue.
02-01-2024 11:45 AM
Hello kauemoncao200,
Can you share the configuration?
I've seen this before if ISIS is configured with single-topology, but you don't enable ipv6 address family on the interface.
This will trigger this issue.
02-01-2024 12:49 PM
Thanks for the information Srs.
I remove the ipv6 unicast family on Isis and the adjacency is Go to UP,
Very good and interesant guys.
Thanksss
02-01-2024 12:29 PM
Can you check if you have "address-family ipv4 unicast" in ISIS?
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