Bill, There was an SNMP bug in IOS that prevented us from deploying OOB on 3750 stacks. That bug was fixed in release 12.2(35)SE.
We are currently running 12.2(37)SE, 12.2(40)SE, 12.2(44)SE, and 12.2(44)SE1 & CCA 4.1.1 Virtual GW OOB with no problems. We are primarily using WS-C3750G-48PS-S switches. I also notice that there is Bug ID CSCsk66548 where switch ports can get reverted to their default vlan, but that does not seem to fit your issue. What CCA & IOS versions are you running? Bruce Osborne Liberty University -----Original Message----- From: Cisco Clean Access Users and Administrators [mailto:[EMAIL PROTECTED] On Behalf Of Bill Davis Sent: Wednesday, April 23, 2008 1:21 PM To: [email protected] Subject: Re: [CLEANACCESS] OOB error help? We have just experienced a 5th general loss of service since deploying our Clean Access in Out-of-Band mode last August. Each failure has lasted over 2 hours and nothing we do helps. Users who are not already logged in are unable to do so because the CCA Manager cannot successfully change the authentication vlan to the access vlan because the switch does not respond to any SNMP request from the manager. Is there anyone else who has deployments in OOB mode using stacked Cisco 3750 switches? If so, have you seen this behavior? We have found out that only switch stacks with 4 or more elements are affected, with only one exception. Cisco TAC currently thinks this is a high CPU issue and that since the SNMP process has a lower priority, something else may be starving it of resources. We have read that any change to the running configuration of the switch stack (as is done each time a user logs in via Clean Access), the configuration is replicated to each element in the stack using lots of CPU so this occurs frequently, but this general SNMP failure occurs at seemingly random times. Our Cisco TAC case has been open since late January with no resolution as yet. If anyone else is experiencing this, or has ideas on what may trigger the event, please let me know. Thanks! -Bill [EMAIL PROTECTED] Network Security Administrator Colorado State University
