[j-nsp] Juniper box equivalent to GSR

[Rubens Kuhl Jr.]

> If i need to add multicast too, i'll use one PIC i guess,

If you need Protocol Independent Multicast-Sparse Mode (PIM-SM)
tunnels, you can buy the M7i with integrated adaptive services
PIC(which would give you other nice services as well). But using
PIM-SM tunnels are just one multicast scenario, is this what are you
doing or planning to ?

>  We initially need 1 GigE on the GSR, but i'm saying that it comes with 2
> extra ones, to put OC12, i'll need to invest more in my old BPX cards, which
> we dont plan to,

>  so overall, we feel M7i will be unscalable for future growth, we could have
> done it with Lucent PSAX aggregators, but that too we didnt want to invest
> in.


The 3 GigE GSR card is the one I would stay away of, as I said on
c-nsp... and I think the 4-port ISE card would not be as cheap. If
your config requires 1 GigE and you have a limited budget, it's not an
issue provided you have expansion capability.

WIth an M7i with Adaptive Services and GigE integrated, you would
talke 2 PICs for the ATM OC-3 connections. One future OC-12c POS PIC
to service POS customers, one future GigE PIC to local connections,
and it seems the M7i could have a nice life.


>  Attached are two diagrams of how the network looks like during migration
> and after migration, note that the one node thats added to the GSR is
> logical. its physically connetced to the BPX,

Is the Internet PE an already existing router that will not be changed ?


Rubens