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OSPF traffic outage after policy installation or fail-over in ClusterXL running on Gaia OS
Technical Level
Solution ID
sk101788
Technical Level
Product
ClusterXL
Version
R77.10
OS
Gaia
Platform / Model
All
Date Created
25-Jul-2014
Last Modified
25-Jul-2014
Symptoms
After policy installation or fail-over, occasionally all OSPF routes disappear on ClusterXL members running on Gaia OS, which causes traffic outage.
Reboot of cluster members resolves the issue.
Kernel debug ('fw ctl debug -m fw + drop') during the issue shows that some OSPF packets are dropped:
fw_log_drop_ex: Packet proto=89 Source_IP:Source_Port -> 224.0.0.5:Dest_Port dropped by fwmultik_enqueue_packet_kernel Reason: Instance is currently fully utilized;
Cause
After cluster failover, on the cluster member that runs the new RouteD in Master state, OSPF neighbors stay in 'Exchange' state, and no OSPF routes are learned.
