From: BitGossip (bit.gossip@chello.nl)
Date: Fri Feb 16 2007 - 04:33:11 ART
Sidalo,
Thank you very much for pointing me in the right direction.
I was trying to verify the load-sharing by pinging from ip A to IP B.
This is of course a single flow and by default CEF load balance
per-destination and so this single flow was always switched out the same
interface.
After configuring under all interfaces:
ip load-sharing per-packet
packets from my test ping are distributed out the 2 interfaces according to
the desired ratio 5:1 :-)
Very interesting exercise!
Luca.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Sidalo
Sent: 16 February 2007 00:22
To: BitGossip
Cc: Cisco certification
Subject: Re: IEWB4 lab 10: EIGRP is not unequal-cost load-balancing
Look into how Cisco devices actually handle the load balancing.
This is an example link, and I am sure there are more out there, and there
might be a better one.
http://www.cisco.com/warp/public/105/46.html
On 2/15/07, BitGossip <bit.gossip@chello.nl> wrote:
>
> Group,
>
> Following S32 of lab10 I got to the point of having a traffic share 5:1,
> but
> at the end real traffic goes out only from the best path S4/1.
>
> Any idea why?
>
> Thanks,
>
> Luca
>
>
>
> router eigrp 100
>
> variance 5
>
>
>
> R1#show ip route 164.1.26.0
>
> Routing entry for 164.1.26.0/24
>
> Known via "eigrp 100", distance 90, metric 3026432, type internal
>
> Redistributing via eigrp 100
>
> Last update from 164.1.12.2 on Serial4/0, 00:08:47 ago
>
> Routing Descriptor Blocks:
>
> * 164.1.13.3, from 164.1.13.3, 00:08:47 ago, via Serial4/1
>
> Route metric is 3026432, traffic share count is 5
>
> Total delay is 40100 microseconds, minimum bandwidth is 1280 Kbit
>
> Reliability 255/255, minimum MTU 1500 bytes
>
> Loading 1/255, Hops 2
>
> 164.1.12.2, from 164.1.12.2, 00:08:47 ago, via Serial4/0
>
> Route metric is 15132160, traffic share count is 1
>
> Total delay is 200480 microseconds, minimum bandwidth is 256 Kbit
>
> Reliability 255/255, minimum MTU 1500 bytes
>
> Loading 1/255, Hops 1
>
>
>
> R1#clear counters
>
> Clear "show interface" counters on all interfaces [confirm]
>
> R1#
>
> *Feb 15 22:02:18.618: %CLEAR-5-COUNTERS: Clear counter on all interfaces
> by
> console
>
>
>
>
>
> Run ping 164.1.26.2 repeat 100
>
>
>
>
>
> R1#show int s4/0 | i underr
>
> 7 packets output, 244 bytes, 0 underruns
>
> R1#show int s4/1 | i underr
>
> 118 packets output, 11412 bytes, 0 underruns
>
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