Problems with Converge Times between BGP and IS-IS
in our MPLS Core we use IS-IS as Routing Protocol between P- and PE- Router. And we use mBGP for VPN based Routing (vrf) between the PE Routers.
At the begining everything works fine. But now it seems that the convergence times between IS-IS and BGP has increased.
e.g. when a link in the core fails than it took more then 5 minutes till the BGP Neighbours are reestablished again. Within the 5 minutes the ip connectivity is there but is not proper propagated withinh IS-IS.
Are the there any configurations issues (e.g. timers)to optimize the behavior between IS-IS and BGP ?
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