I've been there a few times. The issue is that ethernet does not depend on keep alives from the distant end like a wan link. Ethernet sends itself keepalives.
So .... probably a net diagram would be like: local router ----> ISP switch on site ------> ISP network ----> destination .............. Unless the local ISP switch goes down the local router will see a link and it will never "go down" if anything past the local switch is dead. But HSRP is still useful to watch if the physical interface dies (track the interface) but to guard against an upstream failure I have used floating statics to switch routes. Of course this is a manual config and if addresses change you have to change the config. Getting fancier involved using BGP and route maps - which made it dynamic. Kevin Wigle ----- Original Message ----- From: "Brown, Ricky" To: Sent: Friday, 16 November, 2001 15:40 Subject: RE: HSRP on Cisco with 2 Ehternet to ISP [7:26528] > Try using the track interface command on each router. > > -----Original Message----- > From: kim [mailto:[EMAIL PROTECTED]] > Sent: Friday, November 16, 2001 2:56 PM > To: [EMAIL PROTECTED] > Subject: HSRP on Cisco with 2 Ehternet to ISP [7:26528] > > > It is routing problem when configure 2 routers 2621( 2Ethernet)have the > same > LAN ? > > router A :fastE0/0 is LAN fastE0/1 (10Mbs)Link to ISP router 1 > router B FastE0/0 ls LAN fastE0/1 (10Mbs) link to ISP router 2 > > router A is active > router B is backup > When one of LINK (muliti access connection )is going down, will router > update > at connection breakdown ? > > > > Regards > > Kim Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26570&t=26528 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
