https://majanto.com/you-have-configured-msdp-peering-between-two-autonomous-systems-that-pass-traffic-between-two-sites-but-the-peering-has-failed-to-come-up-which-task-do-you-perform-to-begin-troubleshooting-the-probl/
You have configured MSDP peering between two autonomous systems that pass traffic between two sites, but the peering has failed to come up. Which task do you perform to begin troubleshooting the problem?