[c-nsp] GSR vs Juniper prices as P router

[Kim Onnel]

We're planning on buying a new Core (P) router, we had a BPX-MGX network,
which ran Cell mode MPLS

The BPX was used as shelf feeder from MGX ATM switches which had a router
acting as PE, now we'll continue using the BPX as aggregator and pure ATM
switch, which will have 4 OC3 ATM links to the GSR,

So we initially looked at GSR 12410, in my humble opinion, it has decent
port density compared to price (around 250K US$) when compared to Juniper
boxes with similar ports density,

We talked with Juniper folks, they were showing us M40 which was quite
expensive, still not the same port density, which router in Juniper models
would be equivalent disregarding prices,

Our GSR as P will only run IGP and MPLs transport, it'll initially have 3
GigaE ports with NPE-G1, 4 ATM OC3 ports and a bunch of PoS for new PEs
we'll add later

Has anyone had this experience before, people recommend Engine 3 cards and
were pointing that IOS is one huge advantage to go over Juniper, please i
welcome your opinions on both GSR and equivalent Juniper boxes.

Any known problems with GSR or Juniper ?

Thanks