System information

BSR 64000 Configuration and Management Guide
5-8
slot is the 10/100 Ethernet module slot.
interface is the Ethernet interface number.
5. To verify that the information was entered correctly, use the show
running-config command in Privileged EXEC mode as shown below:
MOT#show running-config
The running configuration displays. If the information is not correct, repeat this
procedure.
Configuring a Loopback Interface
Logical interfaces called a loopback interfaces can be used to act as inbound logical
interfaces when physical interfaces go down. These logical interfaces are always
active and they allow the routing process associated with physical interfaces to stay
active. IP Packets routed to loopback interfaces are rerouted to the appropriate BSR
routing process. IP packets not destined to loopback interfaces are dropped by the
loopback interfaces.
Loopback interfaces are used for the following reasons:
• 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.
Up to 16 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
loopback interface, as shown below:
MOT(config)#interface loopback <n>
where:
n is the number of the loopback interface from 1 to 16