Fore Systems ES-2810 - ATM Elans; Introduction; Hardware Requirements; Configuration

FORE Systems ES-2810 Ethernet Switch User's Manual
4 - 9
Advanced Configuration
Advanced
Configuration
4.4 ATM ELANs
4.4.1 Introduction
This facility enables you to map VLANs defined on the Ethernet switch to ELANs on an ATM
switch.
4.4.2 Hardware Requirements
The ES-2810 Ethernet switch must be connected to an FSM-8/TX module installed in an
ES-3810 switch. The ES-3810 also must have an ATM Uplink module installed, which is con-
nected to the ATM switch. The cables between the ES-2810 and ES-3810 must be cross-cables.
Multiple links made between the switches must not cross between the VLANs. For example, a
cable connecting a port in VLAN_1 must not be connected to a port in VLAN_2 in the other
switch.
4.4.3 Configuration
The VLANs in the Ethernet switch must be port-based, and only one VLAN per port may be
defined. When multiple links are set within a VLAN, Spanning Tree Protocol (STP) must be
enabled in both switches to prevent loops being created.
NOTE
VLANs using MAC address, IP address and IP
Net policies must be deleted before enabling
ATM ELAN.