ATM Configuration and Troubleshooting Guide

Configuring EMS High Availability over ATM
Types of Recovery
Chapter 6 95
How Local and Remote Recovery are Related
On systems A and B in Figure 6-1 below, each primary LAN Emulation
Client interface (ela0, ela1 ...) of the primary adapter is configured and
allocated a secondary LAN Emulation Client interface (elb0, elb1 ...)
using SAM. Note that this example uses HP-UX 10.20 naming
conventions.
Figure 6-1 Local and Remote Recovery (MC/ServiceGuard)
ATM
LAN
System A
adapter 1
LAN
adapter 0
adapter 0
ATM
adapter 1
ela0
ela1 elb0
elb1
ATM
LAN
System B
adapter 1
LAN
adapter 0
adapter 0
ATM
adapter 1
ela0
ela1 elb0
elb1
LAN network
ATM network
ATM switches
Primary LAN
Secondary LAN
MC/ServiceGuard
manages remote
recovery to another
system
EMS HA-ATM
recovery within
the same system
Client
Heartbeat
manages local