On Mon, 15 May 2000, Jeff Mcadams wrote:
Also sprach Jeff Binkley
A few weeks back there was a discussion here on the amount of memory required for a Cisco router running in a multihomed environment and BGP4. The recommendation was 128M of memory. I am interested in how much bandwidth into the Internet folks are seeing BGP4 use in this type of environment. Is it a significant amount ? Can someone put a quantity around it ?
You can run 2 full views in 64megs of ram...its rather tight though, so 128megs is definitely recommended.
We're fitting 3 full views into a 64 meg 3620, but just barely -- only about 5 meg free, and CPU is running around 40%. DON'T try this at home, kids; we're ONLY doing it because the 7206VXR we ordered is backordered and our UUNET T1 showed up early. I'm surprised it actually worked, really. But at the rate the table's growing, that 5 meg will be gone by the end of the summer. A 3640 should be considered the rock bottom minimum these days, and a 3661 or 7100 or 7200 would give a lot more breathing room. We went 7206VXR to get away from external CSU/DSU's -- cramming a ton of WIC-1DSU-T1's into a 3661 would have been ugly and not very efficient use of the available slots... plus we can put T3's into it later as we need them. BGP itself doesn't take much bandwidth, and bandwidth doesn't affect memory usage. It might affect CPU usage, though. We're pushing about 2 megabits of backbone traffic into that 3620 and back out the other side to some internal T1/ethernet links. Mike Andrews (MA12) * mandrews@dcr.net * http://www.bit0.com/ VP, sysadmin, & network guy, Digital Crescent Inc, Frankfort KY Internet services for Frankfort, Lawrenceburg, Owenton, Shelbyville www.fark.com: If it's not news, it's Fark. (Or something like that.) - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.