We are building a branch office connectivity solution and we are planning for NME-NAC-K9 module for the 2811 routers. Primary router will be connected to MPLS and secondary to ISDN.
Is it possible to equip just primary router with NME-NAC module and leave the secondary router as it is with just the chassis?
In other words, if the MPLS link or router go down, and if the CAS is unreachable, then will the network still be operational without the CAS?
Thanks a lot