HP X.25/9000 User's Guide HP-UX 11i v3 (5900-1523, August 2011)

XOL cluster definition
You must define the cluster by providing the system names that are part of SG cluster.
X.25 commands used in the SG package control scripts:
• To set the MAC address, run the following command:
lanadmin -A MAC address PPA
• To start XOL interface, run the following command:
x25init -c /etc/x25/x25config_llc2 -L /etc/x25/llc2_conf_def
• To monitor the XOL interface, run the following command:
x25ifstate -d /dev/x25_0l1 -H
• To stop the XOL interface, run the following command:
x25stop -d /dev/x25_0l1
XOL package definition
An XOL SG package is required to configure a highly available XOL interface on all nodes in the
SG cluster. This package allows HP MC/Service Guard to automatically:
• Assign a unique MAC address (using the lanadmin command) to the LAN card in use.
• Start the X.25 link (x25init command) when the X.25 package starts.
• Run the command x25ifstate to monitor the state of the XOL interface.
• Stop the XOL interface when the monitoring command detects a failure.
To define the X.25 package, you require the following attributes:
• Package Name: Identifies the X.25 package, for example, xol_pkg1.
• Service Name: Monitors the XOL interface to be managed, for example, xol_SG_service1
• Service Command: Monitors the XOL interface status, for example, x25ifstate
To configure XOL remote failover, complete the following steps:
NOTE: The XOL HA feature is enabled by default in HP-UX 11i v3. Therefore, the -enableXOLHA
option is no longer required.
NOTE: When the XOL interface goes down, the service command (x25ifstate) exits. The SG
performs a package failover to the standby node configured in the SG cluster.
The SG package file that contains the X.25 commands is /etc./cmcluster/pkg*/control.sh
file (one per XOL package). Following is a sample SG package file:
66 Configuration