Alex,
Use a different routing protocol. RIPv2 only use hop counts, 1 hop is
always shorter than 2 hops. If you use IGRP or EIGRP, they both look at
load, bandwidth, reliability to determined paths.
You can manually change some of the metric to get the best result.
Albert
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Alexandre K
Sent: Wednesday, May 10, 2000 4:51 AM
To: '[EMAIL PROTECTED]'
Subject: Load-balancing in a triangle ?
Hello,
Could anybody comment the following problem:
-I have three Cisco routers, (POPA, POPB and CUSTOMER - exact models are not
important).
<---uplink_1----[POPA]-----------2Mbps---------[POPB]----uplink_2---->
! !
! !
+---512k---[CUSTOMER]---512k---+
!
-------+------- customer network
- A customer router (CUSTOMER) is connected symmetrically both to POPA and
POPB. Each customer link is 512k, and the main purpose for two links was to
have backup connection (if link between POPA and CUSTOMER goes down, traffic
from POPA will go POPA->POPB->CUSTOMER, and vice versa). It works as a
backup.
- Currently RIPv2 is used between POPA, POPB and CUSTOMER, but it can be
changed to any other protocol.
PROBLEM DESCRIPTION:
Currently all customer traffic that comes from uplink#1 (via POPA) will flow
ONLY through link POPA->CUSTOMER, even if this link is highly loaded
already. The same is true about traffic coming from uplink_2: it will use
only link POPB->CUSTOMER.
DESIRED GOAL:
Is it possible to implement some kind of load-balancing between two customer
links ?
That is, even if all incoming traffic for customer network comes to POPA via
uplink_1, I'd like both customer 512k-links to be loaded equally (half of
the traffic must flow in a path POPA->POPB->CUSTOMER).
The same should be true for traffic coming via uplink_2: it must also be
balanced between two 512k links.
WBR,
Alex
PS. It is supposed that 2Mbps link between POPA and POPB may be upgraded
easily as needed, so its load should not be taken into account.
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