Black Box LRA001A-R2 User Manual page 72

ASYNC ROUTER AR-P, AR-5, AND SYNC ROUTER USER'S MANUAL
The routing table entries are:
• Sync Router A
Destination
128.66.0.0
128.66.14.0
default
• Sync Router B
Destination
128.66.14.0
128.66.14.0
128.66.0.0
default
• Sync Router C
Destination
128.66.14.0
default
default
Router B has redundant routes to the 128.66.14.0 subnetwork. Similarly, Router C has redundant
default routes. As long as the synchronous link is operational, Router B will use it to reach subnetwork
128.66.14.0, because the route through the sync0 interface has a lower hop count (metric=l) than the
route through modem0 (metric=3):
Similarly, Router C uses the synchronous link to reach any other location, because the route through
the sync0 interface has a lower hop count (metric=l) than the route through modem0 (metric=3).
If the synchronous link fails, Router B and Router C maintain connections by automatically
transferring traffic to their integrated modems.
72
/Bits Interface Router/Next
/16 eth0
/24 eth0
/0 sync0
/Bits Interface Router/Next
/24 sync0
/24 modem0
/16 eth0
/0 eth0
/Bits Interface Router/Next
/24 eth0
/0 sync0
/0 modem0
Hop Metric
0
128.66.1.2 2
10.4.0.106 1
Hop Metric
128.66.14.1 1
128.66.14.1 3 redundant
0
128.66.1.1 1
Hop Metric
0
128.66.1.2 1
128.66.1.2 3 redundant