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Cisco Bug: CSCuj99749 - VPNv4 MED remains unchanged after IGP metric change

Last Modified

Mar 11, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2(33)SB 12.2(33)SRE4 15.0S

Description (partial)

MED is set correctly for VPNv4 when route is first advertised by eBGP, but is not updated to reflect changes in IPv4 unicast IGP metric for the nexthop

This problem is seen only when all the following conditions are met.  If one or more of the following conditions is not met, you will not encounter the problem:
1. The route must match a route-map entry containing:
       set metric-type internal
2. The nexthop must be an IPv4 unicast nexthop
3. The neighbor to which the route should be propagated is a VPNv4 neighbor (eg: on a vrf)
4. There are no other changes to the route which would cause the net to be readvertised
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