Establish an encapsulation pvc, Establish an encapsulation pvc -20 – AIS Router AI2524 User Manual

Page 278

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AI2524 Router Card User’s Manual

Page 12-20

August 1997

2524UM

Note:

Multiprotocol maps, especially those configured to carr
broadcast traffic, can result in significantly larger traffi
loads, requiring a larger hold queue, larger window sizes,
or multiple virtual circuits.

You can simplify the configuration for the Open Shortest Path First
(OSPF) protocol by adding the optional

broadcast

keyword.

Configure PAD Access

By default, PAD connection attempts are processed for session cre
ation or protocol translation from all hosts. In interface configuration
mode, restrict PAD connections to only statically mapped X.25 hosts:

1.

Restrict PAD access.

x25 pad-access

2.

Configure a host for PAD access.

x25 map pad

x121-address

[

option

]

You can configure outgoing PAD access using the optional features of
the

x25 map pad

command without restricting incoming PAD con-

nections to the configured hosts.

Establish an Encapsulation PVC

Permanent Virtual Circuits (PVCs) are the X.25 equivalent of leased
lines; they are never disconnected. You do not need to configure an ad-
dress map before defining a PVC; an encapsulation PVC implicitly de-
fines a map.

In interface configuration mode, establish a PVC:

x25 pvc

circuit

protocol address

[

protocol2

address2

[...[

protocol9 address9

]]]

x121-

address

[

option

]

The

x25 pvc

command uses the same protocol keywords as the

x25

map

command. Encapsulation PVCs also use a subset of the options

defined for the

x25 map

command.

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