From: Carlos Trujillo Jimenez (nergal888@hotmail.com)
Date: Thu Aug 30 2007 - 16:07:08 ART
>Hi Friends, let me explain a task where it is broking my head for serveral
>days, searching the answer in the internet without a clear answer.
>
>I have the following scenario:
>
>Router 4 and Router 5 are direclty connected each other via an ethernet
>link.
>They are also connected each other via a frame relay link, but in the
>middle of the frame relay cloud there is Router 1 acting as the HUB, so it
>means that Router 4 and 5 are the SPOKES, and for they to talk each other
>over the frame relay cloud, they must first pass al traffic to the hub
>router Router 1.
>
>All these mentioned links and routers are running EIGRP.
>
>Well, the task mentiones to load balance in the way that traffic from
>ROUTER 4 destined to ROUTER 5 is load balanced ou the ethernet link to
>ROUTER 5 and the frame relay link to ROUTER 1.
>Traffic should be distributed between the ETHERNET and the FRAME RELAY LINK
>in a ratio of 4:1.
>
>Looking at the task, the quick answer is to enable variance for load
>balance unequal cost paths between router 4 and 5 via both links, the task
>I answer my self and try to look at the web without succesful answer is how
>to manipulate the metrics for the LOAD BALANCING RATIO OF 4:1??
>
>Looking at the solution workbook it dont gives a detailed or clear answer,
>it states the following.
>
>R1.
>
>interface serial 0/0 (frame relay)
>delay 1
>
>R4.
>interface serial 0/0 (frame relay)
>delay 21500
>
>interface ethermeyt 0/1
>delay 6000
>
>router eigrp 1024
>variance 4
>
>R5.
>
>interface serial 0/0
>delay 1
>
>The solutions works but I dont understand how, can anyone please give an
>explain about the related task, would appreciate a lot any answer.
>
>Anyway I paste what the show ip route ouput from R4 about a route learned
>from R5 via both links after the commands mentioned.
>I look at the TRAFFIC SHARE COUNT for ETHERNET and for SERIAL link, and for
>the first the value is 120, for the second the value is 61. MY QUESTION IS
>DO THIS VALUE HAS SOMETHING TO DO WITH THE RATIO LOAD BALANCE METHOD??
>
>
>p4r4#show ip route 222.22.2.0
>Routing entry for 222.22.2.0/24
> Known via "eigrp 1024", distance 170, metric 4121600, type external
> Redistributing via eigrp 1024
> Last update from 174.1.145.1 on Serial0/0, 00:00:02 ago
> Routing Descriptor Blocks:
> * 174.1.45.5, from 174.1.45.5, 00:00:02 ago, via Ethernet1/0
> Route metric is 4121600, traffic share count is 120
> Total delay is 61000 microseconds, minimum bandwidth is 1000 Kbit
> Reliability 255/255, minimum MTU 1500 bytes
> Loading 1/255, Hops 1
> 174.1.145.1, from 174.1.145.1, 00:00:02 ago, via Serial0/0
> Route metric is 8089856, traffic share count is 61
> Total delay is 216010 microseconds, minimum bandwidth is 1000 Kbit
> Reliability 255/255, minimum MTU 1500 bytes
> Loading 1/255, Hops 2
>
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This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:13 ART