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Cisco Bug: CSCur27048 - FIB download notification feature

Last Modified

Mar 07, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.4.0.BASE

Description (partial)

Symptom:
Following the LC reload, once interfaces on LC is brought up, IGP forms an adjacency, which attract traffic to the LC. 
With large scale of routes LC FIB programming takes certain amount of time. Before the LC FIB is fully programmed ingress traffic on LC may get dropped.

Conditions:
Ingress LC reload
High number of routes (e.g. 450k BGP prefixes)
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