As long as you havent enabled ip routing everything on 3550 is layer 2 . More description of your network will help in answering better

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2950/12119ea1/2950scg/swacl.htm#1075613MAC based ACL

Since your Vlans are connected on the MSFC you need not have any routing protocol ..ip routing is enough .u caan remove routing protocol and check sh ip route if you can see two subnets. Moreover please check onyour sup engine can you see both vlans ...

Since your Vlans are connected on the MSFC you need not have any routing protocol ..ip routing is enough .u caan remove routing protocol and check sh ip route if you can see two subnets. Moreover please check onyour sup engine can you see both vlans ...

can u see if the host mac address is learned on those interfaces sh mac-address-table interface gigx/y