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CONTAP-33271: CNA ports might have the wrong MTU configuration after motherboard failure

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Issue

MTU mismatch occurs after replacing motherboard.

Sun Oct 06 15:03:40 JST [Node-01: vifmgr: vifmgr.cluscheck.mtumismatch:alert]: MTU 1500 on cluster port e0f (node Node-01) does not match MTU 9000 on cluster port e0e (node Node-02).

Then CLUSTER NETWORK DEGRADED occurs due to large MTU packet loss.

Mon Oct 07 15:00:53 JST [Node-02: vifmgr: vifmgr.cluscheck.ctdpktloss:alert]: Continued packet loss when pinging from cluster lif Node-02_clus2 (node Node-02) to cluster lif Node-01_clus2 (node Node-01).
Mon Oct 07 15:07:43 JST [Node-02: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: Large MTU Packet Loss - Ping failures detected between Node-02_clus1 ( XXX.XXX.XX.X ) on Node-02 and Node-01_clus2 ( XXX.XXX.XX.XX ) on Node-01

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