Interface Card Critical Resource Analysis(CRA) Whitepaper for HP-UX 11i v3

However, if the user wants to override the CRA criticality report, he can do so at his own risk by using

the –f option of the olrad command.

If any of these operations must be performed for system administration purposes, the system must be

made accessible through alternative network interface card, which does not have IP address already

configured.

To do this, first verify that the alternative NIC has a physical connection to the network. This can be

verified using one of these commands: nwmgr, linkloop. Perform the following steps to re-assign the IP

address, from the currently configured NIC to an alternative NIC with a physical connection to the

network.

1. Open the /etc/rc.config.d/netconf file and set the value of X in below lines with the

instance number of the alternative NIC.

INTERFACE_NAME[0]="lanX"

IP_ADDRESS[0]="192.15.10.1"

2. Stop the current networking configuration using the ifconfig command to down and unplumb the IP

address configured for the NIC to be replaced.

3. Run the following command:

/sbin/init.d/net stop

4. Run the following command:

/sbin/init.d/net start

5. Manually reconfigure any additional networking setup as needed.

6. Verify the network connection and IP address using the netstat and ifconfig command.

Scenario 2

System Configuration:

HP-UX System is running, which has a Network interface card (NIC),

configured with an IP address and connected to network and the NIC card driver is in SUSPENDED

state.

User Scenario:

Card driver is in SUSPENDED state and the user tries to delete and add a different

type of card, which can be claimed by the same or a different driver.

Operation Performed:

# olrad –C | -d <slot id>

Criticality reported by CRA:

CRA_WARNING

Explanation and user action required:

The olrad(1M) command with –C option reports the resource usage and its criticality.

The olrad(1M) –d option (if it were to be allowed) will delete the IP configuration and its LAN port

from the system. This will result in stale or undefined state of network applications running on the

system using that IP address. Because of the above reason, CRA reports WARNING to notify the

usage of IP address.

If the user needs to delete the card, before performing the olrad operation, ensure that the IP address

is removed from the configuration of applications, which are using the IP address. To avoid the stale