Is there a way to probe the kernel to find out how big the neighbor
table is on a regular basis? Without making a smoking hole of course.
BTW, Traffic shaping is also controlled via Radius.
Grant Taylor wrote:
On 10/23/07 16:10, Marco C. Coelho wrote:
This box is doing a lot. It terminates 1000 PPPoE connections,
provides traffic shaping using TC/HTB, authenticates all users via
Radius. It also runs OSPF routing for the internal network. Looking
at a simple route output I see all the PPP connections coming through
the box, and due to the OSPF I also see the rest of my network
announcements. The only strange things are:
That's just a few things to do on one box. How well is it handling it
if I can ask (aside from the problem that you are working on)?
It's actually pretty happy on a single processor, single core AMD 3000
with 1.5 G of RAM (it was not happy with 512K!!!). I've actually got a
new Dual Core, Dual Processor box loaded and ready to place in
production, but would like to fix this problem first. Unfortunately it
takes between a week and a month for the problem to surface.
model name : AMD Athlon(tm) 64 Processor 3000+
stepping : 0
cpu MHz : 2000.000
cache size : 512 KB
total used free shared buffers cached
Mem: 1554796 1044324 510472 0 221180 430860
-/+ buffers/cache: 392284 1162512
Swap: 4096496 148 4096348
ping times through this box:
64 bytes from f1.www.vip.mud.yahoo.com (209.191.93.52): icmp_seq=1
ttl=58 time=7.74 ms
64 bytes from f1.www.vip.mud.yahoo.com (209.191.93.52): icmp_seq=2
ttl=58 time=8.25 ms
64 bytes from f1.www.vip.mud.yahoo.com (209.191.93.52): icmp_seq=3
ttl=58 time=8.36 ms
64 bytes from f1.www.vip.mud.yahoo.com (209.191.93.52): icmp_seq=4
ttl=58 time=11.9 ms
64 bytes from f1.www.vip.mud.yahoo.com (209.191.93.52): icmp_seq=5
ttl=58 time=8.39 ms
1. The last man working on this box had mistakenly edited the hosts
file and added the machine name and complete domain name to the local
host 127.0.0.1 name. It should only be pointed to the eth0
interface. I have changed this.
Dough!
2. The route output is making an announcement
64.0.0.0 argontech.net 255.0.0.0 UG 20
0 0 eth0
My public IP space is a /20 within that space, not the whole Class
A. I have not found which box is announcing this within my network yet.
I would think that you could extract that information from OSPF, or at
least the system that is advertising and work backwards until you find
the ultimate culprit.
I'm working on it, but time is slim today (but not me)!
Grant. . . .
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