HP CommonIO Products Manuel d'utilisateur télécharger pdf (Page 86)

Configuration

Configuring the High Availability Feature for X.25 over LLC2

Chapter 386

x25init -c <XOL_config_file> -L <llc2_conf_def>

Remote Failover

NOTE Remote failover, with or without local failover, requires the installation

of the ServiceGuard product on the system. For more information on HP

MC/ServiceGuard product, see Managing MC/ServiceGuard document.

In the ServiceGuard cluster, the remote failover works between LAN

cards on different nodes. Each LAN card has an XOL interface which is

defined by the same configuration filename used in the SG package. The

x25ifstate command monitors the XOL interface status. When the

XOL interface fails, the x25ifstate command exits. HP MC/Service

Guard detects that the monitor service belonging to the package has

exited and stops the package. HP MC/Service Guard then starts the

same package on the standby node of the ServiceGuard cluster, which

starts the XOL interface on the LAN card on the standby node.

For more information on using the remote failover functionality with

Service Guard, see “Configuring XOL HA for Remote Failover Using

Service Guard (SG)” on page 86.

Configuring XOL HA for Remote Failover Using Service Guard

(SG)

In Figure 3-15, primary system A and standby system B are part of the

SG cluster and provide remote failover of an XOL interface with X.25

address 1111. The unique, user supplied MAC address is uMAC for that

LAN segment. It is initially assigned to the card lan0 on primary system

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HP CommonIO Products Manuel d'utilisateur Page 86