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SSH is not working anymore

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Information

 
TitleSSH is not working anymore
Symptoms
  • Network error: Connection refused
  • To many sshd processes 
vdx# show process cpu top rb 21 | i sshd
 872 root      20   0  5568 2316 1976 S  0.0  0.0   0:00.02 sshd
 933 root      20   0  5568 2316 1976 S  0.0  0.0   0:00.02 sshd
1700 root      20   0  5568 2316 1976 S  0.0  0.0   0:00.02 sshd
2588 root      20   0  5568 2316 1976 S  0.0  0.0   0:00.02 sshd
2977 root      20   0  5568 2312 1976 S  0.0  0.0   0:00.02 sshd
...
32719 root      20   0  5568 2316 1976 S  0.0  0.0   0:00.02 sshd

vdx# show ssh server status rb 21
rbridge-id 21
VRF-Name: mgmt-vrf      Status: Enabled
VRF-Name: default-vrf   Status: Enabled

 
Environment
  • VDX8770
  • NOS
Cause
ssh process stuck and needs to be restarted
Resolution
  1. Try shut/no shut ssh server
vdx# conf t
Entering configuration mode terminal
vdx(config)# rb 21
vdx(config-rbridge-id-21)# ssh server shutdown
vdx(config-rbridge-id-21)# no ssh server shutdown
      2. If first step doesn't resolve the issue, then do ha failover.
vdx# ha failover
Additional notes

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