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OSPF state is stuck in Init

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TitleOSPF state is stuck in Init
Symptoms
OSPF Neighborship is stuck in Init State
Environment
  • EXOS 15.5.4.2 patch 1-5
  • OSPF 
  • Multicast
Cause
The multicast packets are dropped in the layer 2 bridged vlan and as a result the OSPF Neighborship is stuck in Init State. 

The issue is addressed via bug id xos0062499

User-added image
Resolution
Upgrade the switches to an EXOS version that includes the fix for xos0062499:
  • 15.5.5
  • 15.6.3.1 patch 1-8
  • 15.7.3
  • 16.1.2
  • 21.1

Workaround: 

Disable IGMP snooping on the layer 2 bridged vlan.
Additional notes
This issue may also result in a dual mastership in VRRP or other problems with multicast-dependent traffic.

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