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Configuring IP Services

6-12

• The remote IP address must be on the same subnet as one of the local IP

interfaces.

• EGP does not have any loop avoidance techniques — avoid loop topologies;

otherwise, you will have to conﬁgure EGP route ﬁlters to counter the

redundancies.

• An EGP conﬁguration between two ASs, each using a subnetted interface to a

class A network, results in a routing black hole. RIP Version 1 aggregates the

single subnet into the natural network, but the gateway router does not have

complete subnet information or a natural network route to match the one

being advertised by RIP V1. This black hole is not an EGP or RIP defect:

rather, it is caused by the way RIP aggregates subnets into natural networks.

EGP will operate over a subnetted interface between two Bay Networks

routers if a static route is implemented. The router accepting the subnet from

the remote network must augment the single subnet information with a static

route for the entire remote network.

Editing EGP Parameters

This section describes how to edit, or customize, EGP parameters. You access all

EGP parameters from the Conﬁguration Manager window (refer to Conﬁguring

Routers for instructions on accessing this window).

For each EGP parameter, this chapter provides information about default settings,

valid parameter options, the parameter function, instructions for setting the

parameter, and the Management Information Base (MIB) object ID.

The Technician Interface allows you to modify parameters by issuing

set and

commit commands with the MIB object ID. This process is equivalent to

modifying parameters using Site Manager. For more information about using the

Technician Interface to access the MIB, refer to Using Technician Interface

Software.

Caution: The Technician Interface does not verify that the value you enter for

a parameter is valid. Entering an invalid value can corrupt your

conﬁguration.

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Avaya Configuring IP Services Manual do Utilizador Página 272