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From: Clemens Sibon <sibon@triple-it.nl>
To: lartc@vger.kernel.org
Subject: RE: [LARTC] Load Balancing with 2 uplinks
Date: Mon, 21 May 2001 13:36:50 +0000	[thread overview]
Message-ID: <marc-lartc-99045235105220@msgid-missing> (raw)
In-Reply-To: <marc-lartc-99039853118597@msgid-missing>

Hi there,

> I have been looking for a solution to this problem for quite a while,
> but most methods seem to be designed to address the inverse situation,
> where one server can be reached by more than one links. Is there a way
> to do this with the Linux 2.4?

I have the same problem. I found a message about something similar on this
list (mail titled Re: [LARTC] Combining bandwith of two or more ADSLs ?,
dated april 10, 2001) but this didn't work for me:

I once had traffic over 2 interfaces (2 pings to different systems) but
after stopping and restarting the ping, they both took the same interface
out. I also noted traffic coming in on interface 1 and going out of
interface 2 (don't know why).

If I had sufficient hardware, I think that I would insert several extra PC's
with routing-software (www.zebra.org, since gated dumps core on me) and get
BGP or OSPF:

+--------+        +--------+
| adsl-1 |        | adsl-2 | 
+--------+        +--------+
     \                 /
      \               /
       \             /
        \           /
         \         /
          \       /
           \     /
         +--------+
         | proxy  |
         +--------+
              |
              |
              |
+-----------------------+
| Lot of other machines |
+-----------------------+

I did notice that when you have 2 BGP-routers both advertising a default
gateway, the system only uses 1. If this one fails, it starts using the
second but it won't switch back when the original comes back up again. I
have not yet played with OSPF but in theory, this should allow for some
load-balancing too.

Clemens Sibon
--
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Tel. +31 (0)72-5129516
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  reply	other threads:[~2001-05-21 13:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-20 22:40 [LARTC] Load Balancing with 2 uplinks Christoph Simon
2001-05-21 13:36 ` Clemens Sibon [this message]
2001-05-21 14:27 ` Ramin Alidousti
2001-05-21 17:48 ` Christoph Simon

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