In the case of MC-LAG, how to design the ospf
for the MA network because after the DR/BDR election, some neighbors are stuck in the exstart state
Topology on MC-LAG. 2. 3. Peer. 4. svi runs ospf.
Answer: Use L3 Peer router
ospf over peer-link will decrease ttl value to 0. so it will drop.
then you have to keep this value eq 1. cuz,you have to .
so under vpc domain section, type l3-peer-router func, vpc peerlink will remain the hello packet with ttl=1.
This only exists in an environment similar to vpc. ,
In addition, the operator's box and IOS XE ASR1K. There are similar interchaiss configs, but whether it is logically equivalent to VPC remains to be demonstrated.
Reference link
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2017/pdf/BRKDCN-2378.pdf
But MC-LAG + OSPF is not a recommended design. So don't touch this thing in production. He just took the exam for difficulty! ! ! right~~
and. . . . This is basically a question of death,
most people say! ! ! I am stuck in exstart, it is MTU problem, No, No, not at all.