Those symptoms indicate that bgpd is still running but it is stuck in some weird state and ignores messages from CLI and neighbors. Maybe this problem occured some time before, but you noticed it only when link flapped and bgpd lost neighbor connection:
- Do you see any weird syslog messages from bgpd or imi processes? (cat /var/log/messages | egrep "bgpd|imi")
- Can you reproduce this issue by manually unplugging eth7 interface?
