I am have a 3845 router and two 6509 switches. The router is the data and the voice gateway. For voice the router is running SRST with a remote call manager.
I would like to get the router connected to both switches at the same time to provide redundancy in case one switch dies. The two switches are running HSRP.
I tried to run dot1q from the router to the switch and gave each sub interface on the router an IP unnumbered address to a loopback interface.
This did not work as I could not pass any traffic on either vlan.
Any help would be appreciated.