nanog mailing list archives
Re: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19
From: Joel Aelwyn <lucifer () lightbearer com>
Date: Fri, 21 Jan 2005 12:26:57 -0700
On Fri, Jan 21, 2005 at 09:01:13AM +0200, Hank Nussbacher wrote:
On Thu, 20 Jan 2005, James Laszko wrote:Well, if the router CAN run BGP, the feed from Cymru is only about 84 prefixes - not a lot of memory tied up there, is there?I am *not* talking about the leaf - rather the core. I am curious what resources are needed to manage 200K BGP peers other than 200K IP addresses. Is there an IOS limit on the number of BGP peers? Memory? -Hank
I can't comment on that, but it strikes me that it might be a fairly non-optimal solution, for the simple reason that we're talking about a small, low-delta, highly-distributed feed where session state is going to eat most of your CPU and memory, but any *one* session is unlikely to really need much except keepalives. And, of course, no need to actually route anything. Sounds like an excellent thing to throw commodity (OK, probably rackmount, but still) PC hardware at (potentially in clusters, I haven't looked into what the memory/CPU load of sessions boil down to on recent versions of BGP-capable software that runs on such). -- *************************************************************************** Joel Aelwyn System Administrator - lightbearer.com lucifer () lightbearer com http://users.lightbearer.com/lucifer/
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Current thread:
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19, (continued)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Christopher L. Morrow (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 James Laszko (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Christopher L. Morrow (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Hank Nussbacher (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Rob Thomas (Jan 21)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 James Laszko (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Christopher L. Morrow (Jan 20)
- FW: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 James Laszko (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 James Laszko (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Hank Nussbacher (Jan 20)
- Re: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Joel Aelwyn (Jan 21)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Christopher L. Morrow (Jan 21)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Hank Nussbacher (Jan 20)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Fergie (Paul Ferguson) (Jan 21)
- RE: Please Check Filters - BOGON Filtering IP Space 72.14.128.0/19 Michael . Dillon (Jan 21)