IP Over ATM and LANE

Creating an Emulated LAN

connected by a logical full-mesh topology. In this case, the term “ logical” means only that all LNNI switches participating within a particular domain should be able to reach each other. Typically, a full-mesh topology is satisfied by PNNI, and does not require all LES/BUS switches to be directly connected.

The following is an example of configuring a distributed LNNI LES/BUS on SW3. This example continues from the example above — Two LECS’ are running redundantly for ELAN 1 ( elan1).

1.On switch SW3, enter the stop lecs command on the switch to contain the LES/BUS. This is done to make sure the LECS is not running on this switch.

SW3 # stop lecs

Confirm(y/n)?:y

NOTICE - 'LECS' ***** LECS shutdown *****

SW3 #

2.On switch SW3, use the add buselan command to associate this switches BUS with the ELAN on switches SW1 and SW2 (elan1).

SW3 # add buselan

 

ELANNumber(0)

: 1

ELANName(ELAN001)

: elan1

ConnectMethod(SVC)

:

ELANType(802.3)

:

Multipoint(YES)

:

MTU(1516)

:

ErrorLogEnable(NO)

:

MinimumTDEnable(NO)

:

SW3 #

3.On switch SW3, use the add leselan command to associate this switches LES with the ELAN on switches SW1 and SW2 (elan1).

SW3 # add leselan

 

ELANNumber(0)

: 1

ELANName(ELAN001)

: elan1

ConnectMethod(SVC)

:

ELANType(802.3)

:

Multipoint(YES)

:

MTU(1516)

:

ErrorLogEnable(NO)

:

MinimumTDEnable(NO)

:

Distribute(PROXY)

:

BUSATMAddress(39:00:00:00:00:00:00:00:00:00:BD:AE:20:00:00:1D:BD:AE:20:03):

SW3 #

4.On switch SW3, use the stop les command to stop the LES/BUS service

SW3 # stop les

STOPPING LES/BUS

Confirm(y/n)?:y

NOTICE - 'ZLESSRV' ***** LES shutdown *****

SW3 #

5.On switch SW3, use the set lnniinfo to configure LNNI

SW3 # set lnniinfo

 

LECSID(-1)

: — Accept -1, there will be no LECS on this switch

SW3 #

SmartSwitch ATM User Guide 2-23

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Cabletron Systems 04-0053-01 manual On switch SW3, use the set lnniinfo to configure Lnni