On Tue, Sep 11, 2012 at 7:48 PM, Pete Templin <[email protected]> wrote:
> On 9/11/12 4:08 PM, root net wrote: > > Had a buddy who said he could send us a 8/40. This long term would be >> better than our 7200VXR routers. Thinking about a solution without having >> to upgrade to ASR for now. >> >> Want some thoughts on the following: >> >> 1. Need to be able to handle full 1 Gigabit of transit (and backup link of >> 200Meg) at some point or at least a 2.5 Gbps connection total at some >> point >> as the highest ever pushed. >> > > On the GSR series, it's all about the linecard(s). You really want the > 4-port GE card, as it's built on the Engine 3 architecture and can do what > you want. > > > That's what I am starting to figure out. Been doing some research and it's truly a distributed platform. I've also been reading that we would want Engine 3 as you mention but I think Engine 2 would work too. What do you think? > The GRP-B only have 512MB of ram so full tables going to be possibly out >> of >> the question. I know we could possibly filter down but really want to run >> full table. >> The PRP-1 which we could max out at 2GB of ram >> The PRP-2 which we could max out at 4GB of ram >> > > GRP-B would be quite tight. A prior employer hasn't called any of my > contacts looking for help with routing table problems yet, so I don't think > it's hit the limit, but soon... Does that previous employer have two full Internet tables or just one? Is it IPv4 only or both IPv4 and IPv6. > > > Would we need to install 5 SFCs? >> > > The 008 uses 3xSFC and 1-2xCSC. You need at least 4 ..C for normal > operation of Engine 1/2/3 cards. You need at least one CSC for normal > operation of Engine 0 cards, but you don't want Engine 0 cards anyway. You are right miss read. Only 124xx has 5xSFC. The 8/40 we are getting has 3xSFC and 1xCSC now. I will add another CSC period for redundancy. It doesn't have any router processors. My choices for Ethernet lines cards seem to be 8-Port FE w/ ECC (engine 1) w/256MB, 1-Port GE w/ECC (engine 1) w/256MB and 3-Port GE (engine 2) w/512MB. Unfortunately the 4-Port GE ISE (engine 3) not supported on the GSR 8/40. That would have been easy enough hands down with a 1GB of route memory on the LC. > > > Do you think long term this router could work as we believe max capacity >> we >> would need is around 2.5Gbps period for this router? >> Could we start out with GRP-B and run full tables for IPv4 and IPv6 with >> possibly 200Megs being pushed over transit? >> > > If your cards are Engine 3, they'll serve you well up to the 2.5Gbps/slot > limits. If your xRP has enough RAM for all of its tables and your > linecards have enough RAM for the FIB copy, you'll be fine. I miss these > boxes, but they do have a steep learning curve. This 8/40 would have no xRP. So, we would need to decide to go with the GRP-B and upgrade as bandwidth increases. We've looked at years ago but not heavily because the 7200VXRs did what we needed. > > > pt > > Thanks for your insight. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
