I tried to perform BGP route filtering using route-map with as-path access-list, but found the under the router BGP section, the command "neighbor [IP] route-map" not available. Is it the IOS version limit?
WS-C3750X
License Level: ipservices
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(58)SE1