RE: HSRP - hows it work [7:24721]
--- 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=7i=24761t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP - hows it work [7:24721]
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 [EMAIL PROTECTED] 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. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=24740t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com
RE: HSRP - hows it work [7:24721]
[ The following text is in the iso-8859-1 character set. ] [ Your display is set for the US-ASCII character set. ] [ Some characters may be displayed incorrectly. ] --- 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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=24755t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Cheers, Symon
RE: HSRP - hows it work [7:24721]
Can you use floating static routes instead? JMcL Mr. Oletu Hosea Godswill, CCNA wrote: 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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=24870t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP - hows it work [7:24721]
A tunnel might be a way around this, since the tunnel should go down if end-to-end connectivity goes down. I know its extra overhead. Can you configure the radio to not send keepalives when the link is lost? I'm not much into Radio tech, but it's a idea. This would cause the s0 to lose DTR and go down thus adjusting the HSRP priority. --- Jenny McLeod wrote: Can you use floating static routes instead? JMcL Mr. Oletu Hosea Godswill, CCNA wrote: 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] __ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=24903t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP - hows it work [7:24721]
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. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=24740t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP - hows it work [7:24721]
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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=24755t=24721 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
