------------------- I recently set it up, 2Mb leased line on one router, ISDN on the other. It worked faultlessly. Not microwave though.
Does your line protocol go down? Symon > Hi group, > > > Who have used the 'standby track serial 0' command > before, while configuring HSRP. > > I tried it and was disappointed because, my two > upstream providers are connected via a radio > (microwave link). Even when one of them is down, the > radio coneected to the router still send keepalives to > the route and as such the interface does not go down, > and as such the HSRP does not work when any of the > upstream goes down. > > Has anyone being able to solve this problem? > > Regards > > --- Michael Williams wrote: > > If router A has a higher priority and is setup to > > preempt, then when it > > comes back up (after a failure), it will resume > > being the active. > > If router A does not setup with preempt, it won't > > become the active until > > Router B fails or is restarted, etc. > > > > HSRP works by "projecting" a virtual IP address and > > a virtual MAC address. > > You would configure the clients/workstations with a > > gateway that is the > > virtual IP address (or the standby IP). Whenever > > the end device sends an > > ARP which the routers resolve to the virtual MAC. > > It is possible to use a > > Burned-in (MAC) Address (called a BIA) in case the > > default virtual MAC > > causes a problem. Once the end workstation resolves > > the virtual IP to the > > virtual MAC, it communicates with the virtual MAC, > > in which both routers > > receive and take note of the traffic, but only the > > active router will > > actually forward the traffic. > > > > This is a "in a nutshell" view of HSRP and I'm sure > > there is something that > > I've left out or said wrong, but that's basically > > it.. > > > > Mike W. > [EMAIL PROTECTED] > > > __________________________________________________ > Do You Yahoo!? > Make a great connection at Yahoo! Personals. > http://personals.yahoo.com [EMAIL PROTECTED] > Cheers, Symon Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=24761&t=24721 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
