Using the BayStack 450 10/100/1000 Series Switch1-36 309978-D Rev 01ATM ApplicationFigure 1-14 shows an example of using your BayStack 450 switches with optionalBayStack 450-2M3/2S3 MDAs installed. You can configure each switch with upto four virtual ports that correspond to any of four LAN Emulation Clients (LECs)within the MDA.In this example, the BayStack 450-2M3/2S3 MDAs provide asynchronoustransfer mode (ATM) connections to a Nortel Networks Centillion* 100 switch.Clients (PCs) that are connected to S1 can communicate with clients connected toS2, provided that the VLANs (with their respective client members) are mappedonto the same ELANs, as shown. Although this example shows standaloneswitches, you can apply the same example to a stack of up to eight switches, with32 VLANs and 32 ELANs. See “Setting Up an ATM Configuration” on page 1-37for more information about setting up your BayStack 450-2M3/2S3 MDA.Figure 1-14. Configuring an ATM Application450-2M3/2S3 MDAsBayStack switchesCentillion 100switchS1 S2ATMSpeedswitch moduleLEC 1/VLAN 1/ELAN 1/Vport 25LEC 2/VLAN 2/ELAN 2/Vport 26LEC 3/VLAN 3/ELAN 3/Vport 27S1 ATM configuration:LEC 4/VLAN 4/ELAN 4/Vport 28LEC 1/VLAN 1/ELAN 1/Vport 25LEC 2/VLAN 2/ELAN 2/Vport 26LEC 3/VLAN 3/ELAN 3/Vport 27S2 ATM configuration:LEC 4/VLAN 4/ELAN 4/Vport 28Centillion configuration:ELAN 1ELAN 2ELAN 3ELAN 4BS45082APC1/V1 PC2/V2 PC3/V3 PC4/V4 PC1/V1 PC2/V2 PC3/V3 PC4/V4Clients
