You do not have to buy any additional software or hardware if you are using
Cisco routers running recent version of IOS. The IOS feature that you can
use for this purpose is called HSRP Interface Tracking.

>From CCO:
How Do I Configure HSRP Interface Tracking?

Description
You can configure HSRP so that a link failure results in a failover to the
backup router. This feature is called interface tracking, and is configured
using the standby preempt and standby track commands. The following document
shows how to configure HSRP to perform interface tracking.

http://www.cisco.com/warp/public/619/6.html

Regards,
Mustafa




""Puckett, Larry (TIFPC)""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Packeteer has some interesting equipment. Check them out and see if they
> meet your needs.
>
>
> Larry Puckette
> Network Analyst CCNA,MCP,LANCP
> Temple Inland
> 1300 S. Mopac Expressway
> Austin TX 78746
> [EMAIL PROTECTED]
> (512)434-1838
> cell - (512)751-8315
>
>  -----Original Message-----
> From: andyh [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, May 10, 2001 6:55 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Anybody know of a failover switch for serial
> connections? [7:4104]
>
> hmmm - interesting one.  there is not really any provision for failover
that
> I know of for T-1 size lines.  Higher bandwidth lines can be procured from
> your telco with APS (Automatic Protection Switching) on SONET or MSP
> (Multiplex Switching Protoection) on SDH whereby you effectively get a
> backup line with literally milli-second failover in case of failure.
>
> HSRP is *not* an option as this is for Broadcast (ie LAN) network use only
>
> saying the above there may well be a product out there to do what you
want,
> although I don't recall ever seeing anything like this
>
> hth
>
> Andy
>
> ----- Original Message -----
> From: "Edward Gomez"
> To:
> Sent: Thursday, May 10, 2001 5:57 PM
> Subject: Anybody know of a failover switch for serial connections?
[7:4032]
>
>
> > Hi all,
> >
> > I am currently looking for a failover switch that will automatically
> switch
> > my serial connections from one router to another in case of a router
> > failure. Does anyone know of such a device. The device needs to be able
to
> > handle multiple serial (T1) connections. Thanks in advance!
> >
> > Eddie
> >
> > ----------
> > Edward J. Gomez, MCSE, CNE, CCNA
> > Information Systems Manager
> > ProxyMed, Inc
> > 2555 Davie Road,
> > Suite 110
> > Fort Lauderdale, Florida 33317
> > (954) 473-1001 x315
> > http://www.proxymed.com
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