We have two ISDN routers with dialup lines for customers. If the isdn line on the first router fails, the second router should bring up the dialup link to the remote site. We are planing to run OSPF and HSRP between the routers on the LAN side.
The question is: how can I backup dialup lines with ISDN.
Well, you must confige both routers identically as regards isdn, dialer-list
dialer profile etc., but different on the ethernet and HSRP. Assume that 1 router
is active HSRP router,2 router is standby.When 1 router fails regarding hsrp rules downstream traffic revert to the 2 router and if you confige this traffic like interesting
isdn link come up. But assume that 1 router come back active the downstream traffic revert back to the 1 router but we need that isdn link on 2 router come down so you must undestand behaviour upstream traffic from customer. It must
a) turn to the second isdn link in the case 1 router fails
b) turn back to the 1 router when it come back active
then if this is correct, no more traffic will be on the second isdn link and after some time
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...