BVI at OC3 speed [7:54828]
Has anyone out there ever configured a 7200 with a bridged OC3 interface that is then routed via a BVI?? The config is not the issue but can the router handle it as this link will be heavily used. Since the bridged to routed conversion is done in software I don't have a warm fuzzy about this but the customer doesn't understandably want to buy another router and just let the 7200 be a bridge. If your wondering what the hell, this is for an LSS, LAN Switching Service, application which by tarriff is a fully meshed, bridged ATM service that extends 10 or 100M ethernet. Thanks Dave -- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367 "You don't make the poor richer by making the rich poorer." --Winston Churchill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54828&t=54828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BVI at OC3 speed [7:54828]
Interesting. Wish I could provide a direct answer. Aside from NOT using BVI's :) I usually like to just make the assumption bvi's are going to be process switched to be safe which works for the small environments I've used them in. And they usually are process switched for interesting packets like ip options, multicast, ... which are important to many folks. Process switching is just too much work to fill your pipes in both directions. I think you're answer/hope lies in researching the enchancements made to do larger numbers of sessions for DSL agreegation which there have been many changes in the last year. I believe those test results are internal cisco docs, or at least I couldn't find them easily. There might be another saviour if BVI made it into PXF(NSE) too which I doubt it did. http://www.cisco.com/warp/public/794/7200_bdaggreg.html (Cisco 7200 Configuration for RFC1483) Sorry for the vague answer and Good Luck! Let us know what you find, Darrell ""MADMAN"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Has anyone out there ever configured a 7200 with a bridged OC3 > interface that is then routed via a BVI?? The config is not the issue > but can the router handle it as this link will be heavily used. Since > the bridged to routed conversion is done in software I don't have a warm > fuzzy about this but the customer doesn't understandably want to buy > another router and just let the 7200 be a bridge. > > If your wondering what the hell, this is for an LSS, LAN Switching > Service, application which by tarriff is a fully meshed, bridged ATM > service that extends 10 or 100M ethernet. > > Thanks > > Dave > -- > David Madland > CCIE# 2016 > Sr. Network Engineer > Qwest Communications > 612-664-3367 > > "You don't make the poor richer by making the rich poorer." --Winston > Churchill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54831&t=54828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BVI at OC3 speed [7:54828]
IRB is in CEF path, what pkts size you are expecting for your line rate ;-) However you can get much better perf.with 1483 since it is PXF accelerated, but for that you need NSE1... thanks, rahul. ""MADMAN"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Has anyone out there ever configured a 7200 with a bridged OC3 > interface that is then routed via a BVI?? The config is not the issue > but can the router handle it as this link will be heavily used. Since > the bridged to routed conversion is done in software I don't have a warm > fuzzy about this but the customer doesn't understandably want to buy > another router and just let the 7200 be a bridge. > > If your wondering what the hell, this is for an LSS, LAN Switching > Service, application which by tarriff is a fully meshed, bridged ATM > service that extends 10 or 100M ethernet. > > Thanks > > Dave > -- > David Madland > CCIE# 2016 > Sr. Network Engineer > Qwest Communications > 612-664-3367 > > "You don't make the poor richer by making the rich poorer." --Winston > Churchill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54845&t=54828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BVI at OC3 speed [7:54828]
Hi Dave, Just a brief comment to make on implementing BVI on Cisco Routers. From what I have experienced in the past, BVI does indeed actually eat up quite a lot of Router CPU. One thing that I would really suggest is to look into using RBE instead of BVI. This will definetely result in less CPU processing, and make a solution potentially more scalable. That is if this fits into your architecture. Just a thought. Regards, Brian. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54861&t=54828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
