Cool. I didn't know about this interface tracking feature. It sounds like
it could meet his needs. Thanks,
Priscilla
At 06:59 PM 3/6/01, Clayton Price wrote:
>The first router would not necassarily have to lose connectivity to the
>second router in order to fail over. HSRP can be configured to track an
>additional interface. For example you could track the link to the ISP. If
>that link goes down the router decrements its priority (default decrease is
>10) the other router at that point will see that it has a higher priority
>based on the hello packets from the first router. At this point it will
>become the active router.
>
>Clayton Price
>
>
>"Priscilla Oppenheimer" <[EMAIL PROTECTED]> wrote in message
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > At 06:07 PM 3/6/01, NetEng wrote:
> > >Does HSRP work at the interface level or is the entire router on
> > >acvtive/stand-by? In other words, if I have two routers working in HSRP
>and
> > >a link goes down somewhere down the line, will the first router know to
> > >fail-over to the second router (with a good link)?
> >
> > Interesting question. The first router would have to lose its connectivity
> > to the second router. Routers that are running HSRP send and receive
> > multicast UDP-based hello packets to detect router failure and to
>designate
> > active and standby routers. HSRP detects when the designated active router
> > fails because of the lack of hello packets, at which point a selected
> > standby router assumes control of the Hot Standby group's MAC and IP
> > addresses. A new standby router is also selected at that time.
> >
> > Remember HSRP stands for Hot Standby Router Protocol, not Hot Standby
> > Routing protocol. It's the default router for LAN devices that's on
> > standby. If you think of HSRP as a routing protocol, then you will tend to
> > think it does more than it does. I think to solve your problem you need a
> > "real" routing protocol, although without more info, it's hard to say for
> > sure.
> >
> > Priscilla
> >
> > > I have one router
> > >connected to one ISP and a second router connected to a second ISP. Can
> > >these routers be run in HSRP or must they be running in parallel and let
>a
> > >dynamic routing protocol (BGP on the outside and let's say EIGRP on the
> > >inside) decide? TIA.
> > >
> > >
> > >_________________________________
> > >FAQ, list archives, and subscription info:
> > >http://www.groupstudy.com/list/cisco.html
> > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
> >
> > ________________________
> >
> > Priscilla Oppenheimer
> > http://www.priscilla.com
> >
> > _________________________________
> > FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>
>
>_________________________________
>FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
________________________
Priscilla Oppenheimer
http://www.priscilla.com
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
