I have a major issue that affects all services (telnet, internet etc) on my network.I have a 6509 SUP720 core switch running 2033-pk9sv-mz.122-18.SXD4.bin image and a firewall running ver 3.2(4) image inserted into a module on the switch. An IP of 18.104.22.168/30 exist between the switch and the firewall. The firewall is used to protect the internal servers which are connected to a 6509 switch having an IP address of 22.214.171.124/30 between it and core switch.
Distribution routers for remote sites connect to the core switch on a routed port and the remote sites connect to applications residing on the internal servers. This implies that the firewall protects the internal servers.
Recently, i observed SSO failover between the active and standby supervisor engines on the core switch and leading to inability of the remote sites to connect to applications on the internal servers. A reset of the firewall module resolves this problem and this issue still happens periodically.
I upgraded the image on the Core switch to s72033-adventerprisek9_wan-mz.122-33.SXH.bin and ever since the problem still persists, the SSO has stopped failing over, a reset of the firewall module no longer resolve the problem until the core switch is power cycled before the issue is resolved.
The problem started about 2 months after activating the firewall module. I do not intend removing the firewall module to address this problem because i believe such setup should work.
Any ideas on how to resolve this issue?