From: Scott Morris (swm@emanon.com)
Date: Thu Jan 11 2007 - 09:47:24 ART
Your problem is that you are getting messages from the connected lines
(noise/console input) that are attempting to start exec sessions perhaps?
Start with 'no ip domain-lookup' on your terminal server. But on your async
line ports, do things like 'modem host' and 'no exec' and 'transport input
telnet' or 'transport input none'...
That should help clear up the noise. I don't recall that ever spiking the
CPU, but I don't know as I ever paid attention to that part. :)
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPexpert VP - Curriculum Development
IPexpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
huangyinxiao@gmail.com
Sent: Thursday, January 11, 2007 3:01 AM
To: ccielab@groupstudy.com
Subject: Help my 2511 access server
Hi, group.
Now we have a problem on the our 2511 access server when we upgraded the IOS
to 12.3(21) access server version which can support more than 80 vty line.
The problem is that the cpu process of 2511 access server always keep very
high, sometimes reaching to 90 percent. And we found that when we login the
routerA through 2511, many error messages appear in CLI mode on routerA.
The message show as follows: '% Unknown command or computer name, or unable
to find computer address'.
Then this vty line occupies 70% cpu utilization on 2511, and sometimes 50%.
But, after this message release on the routerA, the cpu utilization is
reduced to very low, such as 1%.
We suspect that the error messages create this problem. But we are not sure.
So who can tell me the problem and solution.
Thanks!
Laurence
This archive was generated by hypermail 2.1.4 : Thu Feb 08 2007 - 23:46:56 ART