Specifications
High Availability Configuration 39
Configuring the Device
Primary Unit
2. Connect a crossover cable from ethernet0/0 to Switch A.
3. Connect a crossover cable from ethernet0/1 to Switch B.
4. Connect a crossover cable from ethernet0/2 to Switch C.
Backup Unit
5. Connect a crossover cable from ethernet0/0 to Switch D.
6. Connect a crossover cable from ethernet0/1 to Switch E.
7. Connect a crossover cable from ethernet0/2 to Switch F.
Switches
8. Cable together Switch A and Switch D.
9. Cable together Switch B and Switch E.
10. Cable together Switch C and Switch F.
11. Cable Switch C to R1.
12. Cable Switch F to R2.
13. Press the power switch to the ON position for both devices.
NOTE: The switch ports must be defined as 802.1Q trunk ports, and the external routers
must be able to use either Hot Standby Router Protocol (HSRP) or Virtual Router
Redundancy Protocol (VRRP). For the best configuration method, refer to the
documentation for your switch or router.