Symptom

New SSH sessions are hanging. We see the TCP SYN from the SSH client on the Nexus but no SYN/ACK. The #show sockets connection, does not list the new connection. The logs show: 2016 May 17 13:26:17 ZAZAJNBSN03EBM0002 %LOCAL7-3-SYSTEM_MSG: bind failed (Address already in use (errno = 98)). service = ssh - dcos-xinetd[3888]

Conditions

After enabling/disabling SSH. (e.g) configure terminal ; no feature ssh configure terminal ; no ssh key rsa configure terminal ; ssh key rsa 2048 configure terminal ; feature ssh

Workaround

This is happening due to a race condition. A reload is usually needed to recover, once in this state.

Further Problem Description