Examining the source code to ng_fec, in ng_fec_output(), it uses the 
IP address to form the hash to pick the port. This is the same behaviour
that 802.3ad specifies, and yields good behaviour since:

a: it works in routed environments as well as local area
b: packets are not reordered within L4 sessions.

However, cisco seems to imply they use a hash based on MAC:
http://www.cisco.com/warp/public/cc/techno/media/lan/ether/channel/prodlit/f
aste_an.htm
for some devices (e.g. a cat5000).
Others (e.g. cat7500, cat8500) use L3 as ng_fec does.
Yet others use SA based distribution (e.g. the cat1900, 2820).

Does the ng_fec interoperate with the L2 only devices of cisco?


--don ([EMAIL PROTECTED] www.sandvine.com)

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