LB removes invalid Target neighbor entries #549
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Monitor TAPA->Proxy NSM connections and update neighbor cache upon connection close events by removing neighbor entries associated with TAPA side IP addresses. Currently, the connection monitor uses a wildcard filter, matching all connections.
Use network service based scope selector limiting the scope of the cluster connection monitor functionality in stateless-lb. Thus, only NSM connection events that are associated with TAPA->Proxy conns are forwarded to stateless-lb in order to update its linux neighbor cache. Go version had to be updated to 1.23 because of NSM.
zolug
changed the title
Some linters got inactivated leading to an error when running the linter. Thus, they are now removed from the config file's enable list.
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/reverify |
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TODO: replace v1.14.2-rc.1 with v1.14.2 once released |
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Description
LB applies cluster-wide monitoring of NSM connection Delete events between TAPA and Proxy, to remove invalid Target entries from the Linux neighbor cache preventing connection disturbances.
When TAPA experiences a NSM Heal event for example due to an unexpected connection refresh failure, the NSM connection is first closed and the associated interface is removed. Thus, the MAC address associated with the Target IP(s)
is no longer valid. Even if the same Target IP(s) will get re-assigned when the Heal process concludes, it's unlikely that the same MAC address will be assigned to the new NSM interface.
Issue link
#548
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