11-08-2007 09:13 PM
After a configuration deployment to >400 C3750's via CiscoWorks, some evidence of the process remained on >40% of the switches after the deployment:
ACC-XX-XXX.XX#sh us
Line User Host(s) Idle Location
1 vty 0 SSH Process 00:00:00
2 vty 1 abc idle 00:04:00
Please note the SSH Process. Even though the deployment concluded successfully, the host remains present indefinitely. (The Works server also appears as a host and in the arp cache.)
Although this is not an immediate problem, a recent event in which
snmp became non-responsive, due to a another deployment across the similar C3750s, required a reload of all switches affected.
We are concerned that there may be underlying problems and thought to ask
the community for feedback before forwarding to the TAC.
(C3750-IPBASEK9-M), Version 12.2(25)SEE3)
Any attempt to remove the process has been unsuccessful.
Cheers,
Peter.
11-09-2007 08:39 AM
I have a feeling this may be a known IOS bug. Please post the output of:
show stack PID
Where PID is the process ID of "SSH Process". If it is this bug, it is fixed for the 3750 in 12.2(40)SE.
11-11-2007 04:45 PM
Hi,
We had a look at CSCsb74409 and we do have this problem as well. As you say, our other problem does sound related - sessions remaining residual.
ACC-R3-27.CE#sh stack 229
Process 229 is currently active
ACC-R3-27.CE#sh processes cpu sorted
CPU utilization for five seconds: 6%/0%; one minute: 6%; five minutes: 6%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
220 130384399 203896920 639 0.31% 0.34% 0.54% 0 SNMP ENGINE
229 1040 1632 637 0.15% 0.34% 0.22% 2 SSH Process
173 289 11129 25 0.15% 0.01% 0.00% 0 TCP Timer
218 39414562 154170794 255 0.15% 0.11% 0.11% 0 IP SNMP
77 17138818 88498465 193 0.15% 0.05% 0.05% 0 HRPC pm-counters
114 39530874 24435703 1617 0.15% 0.13% 0.17% 0 HRPC qos request
6 0 2 0 0.00% 0.00% 0.00% 0 Timers
7 427500 471869 905 0.00% 0.03% 0.01% 0 ARP Input
Best Regards,
Peter.
11-11-2007 05:08 PM
Yeah, this is the bug. Sadly, without a usable stack trace from the process, I cannot confirm if this is causing your immediate problem. Since this is SSH, you could get a show stack from either a telnet session or the console. And as I said, CSCsb74409 is fixed in 12.2(40)SE for this switch.
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