Nortel BayStack 450-24T User Manual

Using the BayStack 450 10/100/1000 Series Switch
D-2 309978-D Rev 01
Figure D-1 shows two BayStack switches that are configured with
BayStack 450-2M3/2S3 MDAs. The MDAs are physically connected to the ATM
switch with two physical ports (not shown). Each MDA can support up to four
LAN emulation client (LEC) virtual ports to the ELANs. PC1 uses the services
provided by the BayStack 450-2M3/2S3 MDA to communicate with PC2 through
the ATM switch.
In this example, LEC1 queries the LAN emulation configuration server (LECS)
for the ATM address of the LAN emulation server (LES) that is providing services
for the specified ELAN. The LES sets up the broadcast and unknown server
(BUS) for LEC1, and establishes the ELAN.
Figure D-1. ATM LAN Emulation Model
LEC 1
LEC 2
LEC 3
LEC 4
LEC 1
LEC 2
LEC 3
LEC 4
450-2M3/2S3 MDA
ATM Switch
LECS
LES
BUS
PC1
PC2
BS45088A
= ELAN
Legend
BayStack 450
BayStack 350
450-2M3/2S3 MDA

Nortel BayStack 450-24T Specifications

General

Brand	Nortel
Model	BayStack 450-24T
Category	Switch
Language	English