Cisco Bug: CSCup47120 - ASR9k BNG-subscriber route not withdrawn from RIB upon initiator change
Jul 20, 2018
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: In a IPoE dual-initiator environment (initiator dhcp + unclassified source on same access interface), if a subscriber with an established packet-trigger session suddenly changes to a DHCP client, the original /32 subscriber route from the packet-trigger session is never withdrawn, leaving a stale route in the RIB pointing to Unknown: Routing entry for 10.1.1.5/32 Known via "subscriber", distance 2, metric 0 (connected) Installed Jun 13 17:33:39.561 for 00:01:39 Routing Descriptor Blocks directly connected, via Unknown Route metric is 0 No advertising protos. Conditions: This occurs on ASR 9000 BNG deployments with both DHCP and unclassified source initiators on subscriber access interfaces, through XR 4.3.4 and 5.1.2.
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Bug Details Include
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