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Unable to Login via Telnet or EDM

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TitleUnable to Login via Telnet or EDM
Symptoms
CPU utilization is continusly on 100%
Multiple EDM and telnet connections are in CLose_Wait state as below
----------------------------------------------------------------

                      CPU Utilization

----------------------------------------------------------------



Unit  Last 10 Sec, 1 Min, 10 Min, 60 Min, 24 Hrs, System Boot-Up

----------------------------------------------------------------

1          100%     100%    99%     99%     99%     55%      

2          17%      18%     17%     17%     17%     17%      

3          20%      20%     20%     20%     20%     20%
Proto Recv-Q Send-Q  Local Address         Foreign Address       State      

----- ------ ------  --------------------- --------------------- -----------

TCP        0      0  0.0.0.0.23            0.0.0.0.0             LISTEN     

TCP        0      0  0.0.0.0.80            0.0.0.0.0             LISTEN     

TCP        0      0  10.10.0.155.80        10.10.0.175.3649      CLOSE_WAIT 

TCP        0      0  10.10.0.155.80        10.10.0.175.3655      CLOSE_WAIT 

TCP        0      0  10.10.0.155.80        10.10.0.175.3656      CLOSE_WAIT 

TCP        0      0  10.10.0.155.80        10.10.0.175.3657      CLOSE_WAIT 

TCP        0      0  10.10.0.155.80        10.10.0.175.3658      CLOSE_WAIT 

TCP        0      0  10.10.0.155.80        10.10.0.175.3659      CLOSE_WAIT 

TCP      729      0  10.10.0.155.80        10.10.0.175.3681      CLOSE_WAIT 

TCP      729      0  10.10.0.155.80        10.10.0.175.3682      CLOSE_WAIT 

TCP     2094      0  10.10.0.155.80        10.10.0.175.3683      CLOSE_WAIT 

TCP      729      0  10.10.0.155.80        10.10.0.175.3684      CLOSE_WAIT 

TCP     2094      0  10.10.0.155.80        10.10.0.175.3686      CLOSE_WAIT 

TCP     2094      0  10.10.0.155.80        10.10.0.175.3689      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3691      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3694      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3697      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3699      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3700      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3701      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3704      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3705      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3706      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3707      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3708      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3709      CLOSE_WAIT 

TCP     2094      0  10.10.0.155.80        10.10.0.175.3710      CLOSE_WAIT 

TCP      598      0  10.10.0.155.80        10.10.0.175.3711      CLOSE_WAIT 

TCP      723      0  10.10.0.155.80        10.10.0.175.3712      CLOSE_WAIT

TCP 	   9 	  0  10.10.0.155.23 	   10.10.0.175.3984 	 CLOSE_WAIT

TCP 	   0	  0  10.10.0.155.23 	   10.10.0.8.3390 	 CLOSE_WAIT

TCP 	   0 	  0  10.10.0.155.23 	   10.10.0.8.4178 	 CLOSE_WAIT

TCP 	  33 	  0  10.10.0.155.23 	   10.10.0.8.4183  	 CLOSE_WAIT
Environment
ERS 4800/4500
Software version : v5.12.0.055
Cause
If the EDM and Telnet session are not closed gracefully. Then it creates a stale session on the switch which results into the "CLOSE_WAIT" state. 
Resolution
Reboot the device to release all the connections which are under CLOSE_WAIT state. 
 
Additional notes

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