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Cisco MWR 1900 Mobile Wireless Edge Router Software Configuration Guide
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Chapter4 Configuring with the Command-Line I nterface
Configuring Multilink Interfaces
Step 5 Specify other interfaces on the router for the HSRP process to monitor in order to alter the HSRP
priority for a given group. When using the MWR 1900 router in the CDMA IP- RAN solution, you must
configure each FE interface to track the multilink interface, the loopback interfaces, and the other FE
interface.
Router(config-if)# standby group track multilinknumber decrement_value
Router(config-if)# standby group track loopbacknumber decrement_value
Router(config-if)# standby group track fastethernetnumber decrement_value
Note In redundant configurations, you should issue standby track commands for both the health
interface (loopback101) and the revertive interface (loopback102) as well as for th e backhaul
interface (multilink1). The decrement values must be as follows: 10 for the multilink, FE,
and health interfaces; 5 for the revertive interface.
Step 6 Specify a priority of 100.
Router(config-if)# standby group priority 100
Note If you are using the MWR 1900 in a redund ant configuration, you must also set the keepalives under
the FE interface to 1.
Router(config-if)# keepalive 1

Enabling the FE Interface

Once you have configured the FE interface, enable it by doing the following while still in interface
configuration mode:
Step 1 Enable the interface.
Router(config-if)# no shutdown
Configuring Multilink Interfaces
To configure the multilink interfaces, complete the following tasks:
•Configuring Multilink PPP
•Configuring IP Address Assignment
•Configuring PPP Multiplexing
•Configuring RTP/UDP Compression
•Configuring Routing Protocol Attributes
•Configuring PIM