Hi, 

I am trying to turn on LACP on an old switch (WS-C4507R).  However, there is no active/passive options available.

SW1_((config-if)#channel-group 1 mode ?
auto Enable PAgP only if a PAgP device is detected
desirable Enable PAgP unconditionally
on Enable Etherchannel only

PLABB2_0822_ESW4_((config-if)#channel-group 1 mode

This is my show ver:

Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-IS-M), Version 12.1(12c)EW1, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 24-Oct-02 23:05 by eaarmas
Image text-base: 0x00000000, data-base: 0x00CA7368

ROM: 12.1(12r)EW
Dagobah Revision 63, Swamp Revision 24

SW1_(R4) uptime is 6 days, 22 hours, 14 minutes
System returned to ROM by reload
System image file is "bootflash:cat4000-is-mz.121-12c.EW1.bin"

cisco WS-C4507R (XPC8245) processor (revision 5) with 524288K bytes of memory.
Processor board ID FOX063815W7

Does anyone knows why there isn't an active/passive option? Is setting 'ON' means using LACP?