Failing over an IPv6 resource in rgmanager leads to the IP not being reachable for several minutes
Issue
When trying to migrate an IPv6 address in rgmanager to another node, the IP remains unreachable for long time :
The ping6 output below shows that the IP remained unavailable for 52 requests (thus about 52 seconds):
64 bytes from 2620:52:0:221a:5054:ff:fe1c:35de: icmp_seq=2 ttl=64 time=0.184 ms
64 bytes from 2620:52:0:221a:5054:ff:fe1c:35de: icmp_seq=55 ttl=64 time=0.281 ms
However, the whole service failover takes less than 20 seconds. Why does the IP remain unavailable for such long time ?
Environment
- Red Hat Enterprise Linux (RHEL 6) with High Availability
- Red Hat Enterprise Linux (RHEL 6) with Resilient Storage
- Red Hat Enterprise Linux (RHEL 6) for SAP
- rgmanager
- an IP resource configured with an IPv6 address
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