[c-nsp] Minimum hardware for IOS XR?

[Pete Templin]

On 3/1/2011 8:49 AM, Glorb Age wrote:
> Hi NSP,
>
> I'm trying to build a test lab for IOS XR, and I'm having trouble figuring
> out what is the minimum platform and modules I need on a GSR to run the VPLS
> feature.  The Cisco Feature Navigator is no help, since it just tells me
> that I need PRP to run the XR code that has VPLS, but it doesn't go into
> specifics on hardware.  Can anyone point me in the right direction of some
> hardware documentation, or tell me from experience what specifically I need
> to build this?  Since I'm putting this together myself the key issue is the
> cost.
>
> Here's what I've come up with so far, please correct me if I'm wrong:
>
> GSR 12008 Chassis
> PRP-1
> One of these:
> 4GE-SFP-LC - Cisco XR 12000 and 12000 Series 4-Port Gigabit Ethernet ISE
> Line Card
>
> One of these three:
> 4OC3X/POS-LR-LC-B(=) - 4-port OC-3/STM-1 POS line card, LR optics (Engine 3)
> 4OC3X/POS-IR-LC-B(=) - 4-port OC-3/STM-1 POS line card, IR optics (Engine 3)
> 4OC3X/POS-MM-MJ-B(=) - 4-port OC-3/STM-1 POS line card, multimode optics
> (Engine 3)
>
> Can anyone confirm that IOS XR will run on PRP-1, and not just PRP-2?  I'm
> assuming it won't run on the older GRPs.
>
> What is the difference in the chassis other than number of slots and the
> fabric?  Since this is just for testing, I'm trying to find the cheapest
> chassis with the minimum AC power supply requirements.
>
> What does the CSC card do?  Is this needed?
>
>  From what I've read, the GigE ISE card will be the CE facing interface that
> runs VPLS, and the PoS can be the core facing card that just does MPLS.
>
You're on the right track.  Doc says PRP2 is needed for XR, no idea if 
you can get away with PRP1.  Engine3/5 is a necessity for XR, which you 
have covered.

GSR requires a minimum of four (CSC+SFC) with a minimum of one CSC (and 
a max of two) and a maximum of three SFC.  The SFC is the switch fabric 
card.  The CSC is the clock scheduler card (and another SFC).
On a 120xx, each SFC offers OC12 bandwidth per slot; Engine 1/2/3 cards 
only run if there are four fabrics.

pt