I need some assistance for the following problem.
We have upgraded two Cisco 6513 switches from IOS 12.2(18) SXE4 to 12.2(33) SXH5. These are our collapse core switches in our network topology. Besides the IOS, nothing else has changed. The running configs were saved before the upgrade as standard procedure to make sure no configs were lost during the process. Once the switch has been rebooted to the new image, two of our route maps stopped working. Sniffer sessions show traffic being stopped at the core switch. Remember that nothing else has been changed besides the IOS. After consulting with Cisco tech support, they think the new IOS might be faulty and advised us to fall back on the old image. After this was done, the route map problem still persist. I'm not sure whether I should call Cisco again as they have already gone over my configs line by line and do not see any problems. Have anyone experience this problem before or have any ideas what might be causing this?