Managing frame relay, 29 managing frame relay – Alcatel Carrier Internetworking Solutions Omni Switch/Router User Manual

Page 873

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Page 29-1

29

Managing Frame Relay

The

WAN

Switching Module (

WSX

) family supports Frame Relay on universal serial, T1 or E1

ports. Management, data handling, compression, and multi-protocol encapsulation are
compatible with current Frame Relay standards, such as

RFC 1490

and

FRF.9

. The

WSX

supports all three major

DLCMI

management protocols.

WSX

frame relay extends the power and flexibility of

LAN

switching over large geographic

distances using a Frame Relay network or a leased line, such as a

T1

. In a Frame Relay

network configuration, the

WSX

provides a cost effective link supporting multiple virtual

circuits. In a leased line configuration, the

WSX

provides dedicated bandwidth to a single

remote site.

VLAN

architectures are preserved and consistent on both sides of a

WAN

link. The

WSX

supports frame relay trunking, so

VLAN

Groups on one side of a Frame Relay link are compat-

ible with those on the other side. In addition, the

WSX

is capable of Frame Relay IP and IPX

routing and complies with Inverse Address Resolution Protocol (In

ARP

)

RFC 1293

.

In a typical configuration, the

WSX

occupies one slot in an Omni Switch/Router. Since it is

compatible with Omni Switch/Router any-to-any switching and

VLAN

architecture, you can

switch other topologies in the

LAN

to Frame Relay. The following diagram shows a typical

WSX

setup using a 56 Kbps Frame Relay line (up to 2 Mbps access rates are supported).

Typical WSX Frame Relay Setup Using Serial Ports

F

F

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WSX

5

5

5

56

6

6

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p

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a

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CS

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S

SU

U

U

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D

D

DT

T

T

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D

D

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C

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e

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