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Cisco Bug: CSCum43655 - IPv6 Traffic drop on Bundle interface No shut due to Incomplete Nexthop

Last Modified

Aug 08, 2018

Products (7)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9922 Router
  • Cisco IOS XR Software
  • Cisco ASR 9010 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases


Description (partial)

This was because IPv4 next hop for Ipv6 prefix on CSC scenario was broken. The transition from Recursive to NonRecursive or nonrecursive to Recursive was broken for IPv6 prefix reachable over IPv4 nexthop.

Ipv6 traffic was carried on Bundle interface. During Bundle Shut and NO shut  resulted complete traffic drop on ingress card. Releases impacted: 5.1.1 and 4.3.2 and Only impacts Trident and Typhoon LCs.
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