Hi. Does someone know a good reference describing possible values and meanings for the "fast switching type" and "fast flags" fields of a "show cef interface" on a Cisco 7500 router ? Command referece for this command (http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/swit ch_r/xrcef.htm) does not describe these fields in detail. Running with IOS 12.0(8)S, the output is like this for each interface: FastEthernet0/0/0 is up (if_number x) (...) Fast switching type 1, interface type 18 IP Distributed CEF switching enabled IP Flow switching turbo vector IP Flow CEF switching turbo vector Input fast flags 0x1, Output fast flags 0x1 (...) Previous CEF-enabled versions may show little diferences, such as listing fast-flags as one field. Any pointers ? Rubens Kuhl Jr.