Re: Internet Traffic load balancing

From: Marko Milivojevic <markom_at_ipexpert.com>
Date: Mon, 2 May 2011 17:10:19 -0700

> I wonder if we could test this with a simple ping?

Disclaimer: This is unbelievably unscientific, quick and dirty and in
no way proves either point. I still think a proper traffic generator
is required.

I added 7 loopbacks on another router (the one that is default gateway
for both interfaces):

101.100.100.100
102.100.100.100
103.100.100.100
104.100.100.100
105.100.100.100
106.100.100.100
107.100.100.100

I ran the following from the router with static routes (prior to this,
I made sure the ARP table was populated and I cleared the counters and
disabled anything else on the router than can generate packets and/or
frames, leaving only my pings in output counters):

foreach ip {
 101.100.100.100
 102.100.100.100
 103.100.100.100
 104.100.100.100
 105.100.100.100
 106.100.100.100
 107.100.100.100
} { ping $ip repe 1 }

What I should be seeing is 5:2 ratio in packets. This is what I got:

R2#sh int gi0/0 | i packets out
     4 packets output, 456 bytes, 0 underruns
R2#sh int gi0/1 | i packets out
     3 packets output, 342 bytes, 0 underruns

Which leads me to my original assumption of 1:1 ratio.

--
Marko Milivojevic - CCIE #18427
Senior Technical Instructor - IPexpert
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Received on Mon May 02 2011 - 17:10:19 ART

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