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Cisco Bug: CSCvu36208 - OSPFv3 packets are punted to CPU from STP ALT-BLK ports

Last Modified

Jul 20, 2020

Products (67)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 92348GC-X Switch
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 93600CD-GX Switch
  • Cisco Nexus 3636C-R Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 3132Q-V Switch
  • Cisco Nexus 92160YC-X Switch
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Known Affected Releases

9.2(3) 9.3(4)

Description (partial)

Symptom:
OSPF reported the bad address in the system log as below:

N9K# sh logging log | i ' Bad source address fe80::171:102:250:4 - ours on Vlan28'
2020 May 18 10:05:57 N9K %OSPFV3-4-SOURCE_ERR:  ospfv3-1 [29849] (default) Bad source address fe80::171:102:250:4 - ours on Vlan28
2020 May 18 10:06:14 N9K %OSPFV3-4-SOURCE_ERR:  ospfv3-1 [29849] (default) Bad source address fe80::171:102:250:4 - ours on Vlan28
2020 May 18 10:06:32 N9K %OSPFV3-4-SOURCE_ERR:  ospfv3-1 [29849] (default) Bad source address fe80::171:102:250:4 - ours on Vlan28

Conditions:
There are parallel layer 2 trunks from the N9K to neighbor devices
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