Initially we have 3 locations connected via metropolitan fiber links, say site A, B & C.A,B,C are connected using 3550 L3 switches (IOS 12.1(22) EA1) on a separate VLAN.Recently we have added 2 more sites, say, site D & E.D is connected using 3640 ro...

I got the following error from the logging on Cat3550.What would be the possible cause and suggested corrective action?Thanks..May 3 15:13:08.812 EDT: %SYS-2-MALLOCFAIL: Memory allocation of 1680 bytes failed from 0x172C20, alignment 0 Pool: I/O Fr...

Due to initial business req., we run 3 total separate networks, each has different subnets, Catalyst L2 switches (clients connect on same default Vlan1), Cisco routers and Pix with different T1 to ISPs. Then, due to migration to corporate email, the ...

Our current IOS on 2501 & 2503 was 11.0(9) and seemed not to support MIB-2 (no Frame-Relay sub-interface on SNMP).Is there any handy step to upgrade the IOS?What is the stable release for 2501 & 2503 with 8MB flash & 4MB RAM?If upgrade failed, is the...

Recently our Cat3550 got error saying CEF was disabled due to low memory condition.TAC diagnosed it was a hardware failure and hardware was replaced.After a while, new symptoms happened and reported MALLOCFAIL (Memory Fragmentation and No Alternate P...