Motorola BSR 2000 Configuration And Management Manual page 173

Release 1.0
Loopback interfaces are used for the following reasons:
Up to 64 loopback interfaces can be configured on the BSR. Follow these steps to
define a loopback address:
1. Use the interface loopback command in Global Interface mode, to define a
2. Use the ip address command in Interface Configuration mode to define an IP
Note: A 32-bit mask (
address.
3. Use the ip address secondary command to optionally configure a secondary IP
526360-001-00 Rev. B
Collect accurate service-related information through an SNMP manager about
active or down interfaces on the BSR.
Indirectly access an outbound physical interface that cannot be directly accessed.
When the designated router election process occurs in OSPF, the designated
router choice can be forced by assigning a higher IP address for the loopback
address.
loopback interface:
MOT(config)# interface loopback <1-64>
where:
1-64 is the number of the loopback interface.
address for the loopback interface that is a network broadcast address:
MOT(config-if)# ip address <A.B.C.D> <A.B.C.D>
where:
A.B.C.D is the IP address of the BSR interface designated for the loopback
interface.
A.B.C.D is the subnetwork mask of the IP network, on which the interface is
associated.
255.255.255.255)
address for the loopback interface, in Interface Configuration mode:
MOT(config-if)# ip address <A.B.C.D> <A.B.C.D> secondary [host | mta]
where:
Configuring Interfaces and TCP/IP Features
is permitted for a loopback IP
MGBI 5-9