On Wed 23 Nov 2005, Theodore Knab wrote: > > I have Xeon 700MHz Netfinity running as campus firewall managing > about 10K - 300K sessions on a T3. It runs the 2.6.8 kernel and > IPtables in bridge mode. > > When I use 2 cpu's the systems seems to get interrupt collisions. Are > interrupt collisions common with dual CPU systems on Linux firewalls ?
Why do you say "seems to get interrupt collisions", what are the symptoms? Here we don't have any such problems (firewall that handles 200Mbit/s routinely, all sorts of traffic, although a large chunk is web). > Also, are there any good network cards that have 2 - 3 ethernet ports on them > and > only require 1 IRQ ? I think multiple port PCI cards would offer greater > preformance > than 2 or 3 separate PCI cards. Correct me if I am wrong. You're wrong :) A multiple port PCI card is typically built using a PCI bridge on the card, hence creating a new PCI bus. This extra level of indirections won't help. Each interface will still be separate. Having all share the same interrupt is typically not that useful. Paul Slootman -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
