[c-nsp] Sup720 packet duplication / upgrade from sup 2

[Ashe Canvar]

Hi all,

I replaced a SUP2/MSFC2 with a SUP 720 in a 6509 recently. Running
native on 12.2(18) SXD.

My traffic patterms became very wierd after the upgrade. Specifically,
the output pps became 150% of what it was before. After doing quite a
bit of tcpdumping and netflow analysis it seems like the router itself
is duplicating some packets.

I am running BGP/OSPF and also doing some policy based routing (source
address based) on this box.

Has anyone encountered issues like this before ?

Thanks
-ashe