Not sure what cards you're referring to...
First, there's a difference between the "older" 4xOC-3 and the 8xOC-3 (&
16xOC-3). The former is an engine 0 LC and the latter two are engine 2
LCs. Lots to explain between the differences in engine 0 and 2 LCs (in
case you don't know).
Second, there's a newer generation LC (engine 3) LC that has come out
this last year too. My recollection is that there are only 16xOC-3 POS
cards for engine 3 though -- no 8x. Plans and priorities can change
quite quickly so my info might be a bit dated. Again, lots to explain
between the differences in engine 2 and 3 but, in summary, you get a
very programmable forwarding engine with engine 3 (actually two -- one
ingress and one on egress) which will give you more features without
taking a hit, or a very minor hit, to performance.
LC memory is really another issue. You referring to route table or
packet memory?
Hope this helps.
Thanks,
Chris
>
> Hi
>
> Can anyone shed some light on the difference between the
> older 4/8OC3/POS
> cards and the newer 4/8OC3X/POS cards on 12000 GSR platforms?
> What would I gain if I get the newer cards?
>
> Also, how much LineCard memory do I need on the cards? I use
> 128M on the
> older cards and it's enough for me...
>
> Thanks
> Arie
>
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