From: Jerry Haverkos (jhaverkos@xxxxxxxxxxxxxxx)
Date: Fri Jun 21 2002 - 17:17:00 GMT-3
Carlos
As far as I know, HSRP doesn't have any effect on incoming traffic. To
determine how you might steer incoming traffic to the router with the 100
Meg Interface I believe more information about your theoretical network
would have to be known.....jerry
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Carlos G Mendioroz
Sent: Friday, June 21, 2002 2:18 PM
To: Groupstudy ccielab list
Subject: Re: HSRP: the other side ?
It seems I'm not making an interesting thing out of this :-(
Say you have 2 routers like before, but one has a 100Mbit interface
and is the preferred access, and the other is an old 4000 with only
10Mbit interface, but you do HSRP between them not to have a
single point of failure on the router. Obviously you don't want
your traffic to come via the 10Mbit half duplex interface to your lan.
How would you prevent it ?
Carlos G Mendioroz wrote:
>
> I'm still looking for a way to solve what I think is a problem ;-)
> Namely, you have a network and a couple of routers doing HSRP
> for providing redundant exit path to the rest of the world.
>
> As I see it, this has two sides.
>
> 1) The inside:
> HSRP solves the redundancy by using a polling mech (HSRP) to
> identify which router out of a group is responsible for the
> group MAC and IP. Every host on the net uses this MAC/IP to
> go out. It works and actually can deal with many problems
> (with track you can even react to some external problems).
>
> 2) The outside:
> The rest of the world need to know how to reach your network.
> And here, AFAIK HSRP has no hooks to make this easy.
>
> E.g.
>
> N -- R1 -- wan link to ISP
> E
> T -- R2 -- backup wan link to ISP
>
> When R2 turns active, how does it signal ISP that now traffic to your
> net
> should be forwarded to it (instead of to R1) ?
>
> It's easy if R1's net interface went down, but it might not be the
> case...
>
> Comments ?
> I have some weird ideas, but would like to know if there is an orthodox
> way out.
>
> --
> Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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