Avaya 882 Manuel D’Utilisation

15-28

User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1

Chapter 15

9.  To update the LSA entry, select Refresh Entry.

To search the OSPF link state database using the CLI, enter the following 
command:

> 

Non-broadcast multi-access (NBMA) functionality was added to RIP and 
OSPF routing protocols on the Avaya Multiservice switch software. Support 
for this functionality was added to enable route exchange over nonbridged 
connections (routed PVCs).

This feature makes it possible for the switch to exchange routing 
information over nonbridged connections (routed virtual switch ports). 
NBMA functionality has been added to the RIP and OSPF routing protocols 
in the switch software and has been tested with other routers. 

Operation of OSPF over NBMA is almost identical to operation of OSPF 
over broadcast LANs. Flooding uses the designated router, and both subnets 
are represented identically within the OSPF link-state database by network-
LSAs. The only real difference between broadcast subnets and NBMA 
subnets is in the discovery of neighboring routers. On broadcast networks, a 
router can discover its neighbors dynamically by sending multicast Hello 
packets; on NBMA networks, a router’s neighbors may have to be 
configured.This feature makes it possible for you to set up an IP interface as 
NBMA. Each IP routing protocol may then have IP addresses that are 
designated as NBMA neighbors. 

Each IP routing protocol may then have IP addresses that are designated as 
NBMA neighbors. This allows the switch to work with other routers that are 
routed over PVCs.

Network Mask

Displays the network mask for the LSA.

Attached Router 
ID 1 &2

Displays the router ID for the attached router(s).