OSPF and ISDN Backup
Hi Guys,
I have a question. I'm currently running OSPF on all of the routers and I'm having problems with ISDN backup links. I use floating static routes to activate the BRI interfaces. Just to mention; My network is set up in a hub & spoke topology where remote routers dial into the central site. When a branch router fails over to ISDN it forms a neighbor relationship with the central site, but I believe all of the other remote routers instantly perform STP calulations because of the topology changes. It creates a few second times-outs on all of the routers as the topology changes. So my question is:
Should ISDN backup links be placed in separate OSPF areas ? I currently have the ISDN links in area 0. ? Any suggestions on what I should pay attention to or a web link that would help me with setting this up ?
Thank you for all your help.
read more and respond »Posted 5 years ago by NetWorkMan in Cisco Systems
