Cisco CATALYST 8540 ATM ROUTER C8540-ARM-64K= Ficha De Dados

D

ATA

S

HEET

T

HE

C

ATALYST

®

8540 MSR ATM R

OUTER

M

ODULE

(ARM)

PROVIDES HIGH

-

SPEED INTERWORKING

B E T W E E N T H E A S Y N C H R O N O U S T R A N S F E R M O D E

(ATM)

A N D

L

AY E R

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I N T E R FA C E S I N A S I N G L E

CHASSIS

. T

HE

ARM

IS SUPPORTED BY THE

C

ATALYST

8540 MSR

PLATFORM

,

A HIGH

-

END MULTISERVICE

SWITCH THAT PROVIDES LARGE ENTERPRISES AND SERVICE PROVIDERS WITH A WIDE RANGE OF

L

AYER

3

AND

ATM

INTERFACES FOR BUILDING INTEGRATED SOLUTIONS

.

Catalyst 8540 ATM Router Module

The following features and capabilities are supported on the

ARM module:

Table 1: Feature Summary

The ARM is unique in that it allows Layer 3 traffic to pass

seamlessly between ATM and Layer 3 interfaces. The benefit

to the customer is that wire-speed Layer 3 switching between

frame (Gigabit Ethernet/Fast Ethernet) ports, ATM switching

between ATM ports, and high-speed frame/ATM

interworking are combined in a single chassis. The result is

fewer products in the network, simplified network designs,

and a lower total cost of ownership.

The ARM can be configured to support either Request

for Comments (RFC) 1483 or LANE for providing

integrated Layer 3 and ATM services.

ARM support of the Internet Engineering Task Force (IETF)

specification RFC 1483, “Multiprotocol Encapsulation over

ATM Adaptation Layer 5” on the 8540 MSR includes:

• LLC/SNAP encapsulation

• IP/IPX

• IP multicast

Layer 3 traffic can be seamlessly
passed between Layer 3 and ATM
interfaces on the Catalyst 8540 MSR

IETF specification for providing an
interworking between Layer 3 and
ATM networks

ATM Forum specification for LAN
Emulation (LANE) provides
interworking between Layer 3 and
ATM networks

Provides for wire-speed IP and IPX

®

forwarding by using a “shadow” of
the routing table, which is maintained
in hardware on the ARM

Enables maximum system uptime

Feature-rich software for advanced
networking applications