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Cisco Bug: CSCus92182 - ospf/ospfv3 should give single route update to RIB while add/delete path

Last Modified

Jan 11, 2017

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

4.2.4.BASE

Description (partial)

Symptom:
if a static route nexthop is ospf learn route. when ospf route moves from one path to another it might be possible that static route goes missing from fib for 1 second.

Conditions:
Currently when ospf routes convergence makes the route to move from one path to another. we need to delete the older path from RIB and give the newer path to RIB. this operation currently makes ospf to give two route updates to RIB one for all delete paths and another one to add all new paths. 
ideally this operation should happen in a single route update from ospf to RIB which contains both the deleted path and added paths.
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