Avaya BCM 2.0 Programming Betriebsanweisung Seite 200

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200 Configuring Enterprise Edge Services
Enterprise Edge 2.0 Programming Operations Guide P0911588 Issue 01
IP Routing
The IP Routing service setting allows you to select, add or delete routing protocol
on specific interfaces, choose routing protocol options, and add or delete static
routes.
Enterprise Edge supports the following IP routing protocols:
Routing Information Protocol (RIP)
Open Shortest Path First (OSPF)
Routing Information Protocol (RIP)
Enterprise Edge supports RIP, a widely-used protocol for managing routing
information in a self-contained network, such as a corporate intranet. RIP measures
the shortest path between two points on a network in terms of the number of hops
between those points.
Enterprise Edge router sends RIP routing information updates that list all the other
hosts it knows about, to its nearest neighbor host every 30 seconds. The neighbor
host sends the information to its next neighbor, until all the hosts in the network
know the routing paths, a state known as network convergence. RIP uses a hop
count to determine network distance. Each router in the network uses the routing
table information to determine the next host for the packet, until it reaches the
destination.
Enterprise Edge supports on demand routingtable update and periodicrouting table
update. On demand routing table update is available only on demand-dial
interfaces. Periodic update operates efficiently on persistent links
For information on how to select RIP as your routing protocol, seeConfiguring IP
Routing on page 201.
Open Shortest Path First (OSPF)
Open Shortest Path First protocol bases its path descriptions on “link states” that
take into account additional network information. OSPF also lets the user assign
cost metrics to a given host router so that some paths are given preference. OSPF
supports a variable network subnet mask so that a network can be subdivided into
areas. For information on how to select OSPF as your routing protocol, see
Configuring IP Routing on page 201.
WARNING
Because OSPF is a “link-state” based routing protocol, you must not use OSPF on
demand dial interfaces. Frequent link status (between “up” and “down”) may cause
the protocol to become unstable.
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