[nsp] Load-balancing in FEC for Cat3550 EMI

[DEVAUX, Josselin]

I have the following configuration :

Routeur 1 --------\
		   Cat 3550 EMI -------(FEC)------Routeur 3
Routeur 2 --------/

The FEC between the Cat 3550 and the Routeur 3 is a L2 FEC with 2 FE (0/1
and 0/2).
Routeur 1, 2 and 3 are in the same Vlan.
Port-Channel load-balancing is configured by default to src-mac.

When issuing at the same time ping from routeur 1 and 2 to routeur 3, they
take the same FE0/1.
Later on when redoing the test they take the other FE (0/2). 

So, is the L2-FEC load-balancing algorithm dependant of time ?
Even if the hash can give the same result for two differents mac adresses,
it seems to me, by looking at CCO, that the algorithm is deterministic ie
same src-mac always result in same output interface in FEC.

Cat 3550 running 12.1(8)EA1c

Anybody can help ?