I am trying to upgrade my 3640 to 12.2(15)T7 and when I do, I lose connectivity to my 3550 switch on my defined VLANs. Do you know if there are any issues with this version of code and 10baseT ethernet ports and VLANs. I am currently running 12.1(2)T IOS and the VLANS work but not with the upgraded code. Any ideas?
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3640 IOS Upgrade
- Thread starter baddad58
- Start date
baddad58,
I had a similar issue when upgrading my c3620 IOS to 12.1(20). Turns out there are some bugs in some version of the router IOS with VLAN trunking. I went to 12.2(17a), which you should do anyway as part of the Cisco IOS security advisary.
JimmyZ
I had a similar issue when upgrading my c3620 IOS to 12.1(20). Turns out there are some bugs in some version of the router IOS with VLAN trunking. I went to 12.2(17a), which you should do anyway as part of the Cisco IOS security advisary.
JimmyZ
- Status
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