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Configuring SuSE network interfaces

You must perform network configuration on SUSE. In rare cases where RedHat does not automatically configure the network interfaces, RedHat users may also have to perform the network configuration.

For VCS to function properly:

• VCS must be able to find the same network interface names across reboots.
• VCS must have network interfaces up before LLT starts to run.

Symantec suggests the following steps for configuring network interfaces on SUSE.

 To configure persistent interface names for network devices

1. Navigate to the hotplug file in the /etc/sysconfig directory:

   # cd /etc/sysconfig

2. Open the hotplug file in an editor.
3. Set HOTPLUG_PCI_QUEUE_NIC_EVENTS to yes:

   HOTPLUG_PCI_QUEUE_NIC_EVENTS=yes

4. Make sure that the interface name to MAC address mapping remains same across the reboots. Symantec recommends adding the PERSISTENT_NAME entries to the configuration files for all the network interfaces (including the network interfaces that are not used).
   • Run the command:

     ifconfig -a

   • For each ethernet interface displayed, do the following:
     • If a file named /etc/sysconfig/network/ifcfg-eth-id-mac, where mac is the hardware address of that interface, does not exist, then do the following:

       Create the file.

       If a file exists for the same network interface with the name /etc/sysconfig/network/ifcfg-ethX, then copy the contents of that file into the newly created file. The variable ethX represents the interface name.

     • Add the following line at the end of the file /etc/sysconfig/network/ifcfg-eth-id-mac.

       PERSISTENT_NAME=ethX

       where ethX is the interface name.

       ---

         Note   The MAC address in the ifcfg-eth-id-mac file can be in uppercase or lowercase. SUSE, and therefore the Veritas product installer, ignores the file with lowercase MAC address if the file with uppercase MAC address is present.

       ---

       For example:

       # ifconfig -a

       eth0 Link encap:Ethernet HWaddr 00:02:B3:DB:38:FE

       inet addr:10.212.99.30 Bcast:10.212.99.255

       Mask:255.255.254.0

       inet6 addr: fe80::202:b3ff:fedb:38fe/64 Scope:Link

       UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

       RX packets:453500 errors:0 dropped:0 overruns:0 frame:0

       TX packets:8131 errors:0 dropped:0 overruns:0 carrier:0

       collisions:0 txqueuelen:1000

       RX bytes:35401016 (33.7 Mb) TX bytes:999899 (976.4 Kb)

       Base address:0xdce0 Memory:fcf20000-fcf40000

       If a file named etc/sysconfig/network/ifcfg-eth-id-00:02:B3:DB:38:FE does not exist, do the following:

     • Create the file.
     • If the file /etc/sysconfig/network/ifcfg-eth0 exists, then copy the contents of this file into etc/sysconfig/network/ifcfg-eth-id-00:02:B3:DB:38:FE.

       Add the following to the end of the file named etc/sysconfig/network/ifcfg-eth-id-00:02:B3:DB:38:FE,

       PERSISTENT_NAME=eth0

       Perform the above steps for all interfaces displayed by ifconfig -a command.

 To configure interfaces to be up before starting LLT

1. For each network interface that you want LLT to use, find its MAC address by running the ifconfig command:

   # ifconfig eth0

   eth0    Link encap:Ethernet HWaddr 00:0C:0D:08:C4:32

   Where eth0 is the sample network interface name. The output displays 00:0C:0D:08:C4:32 as the interface's MAC address.

2. Navigate to the config file in the /etc/sysconfig/network directory:

   # cd /etc/sysconfig/network

3. Open the config file in an editor.
4. Append the string eth-id-macaddress to the MANDATORY_DEVICES list in the config file. Separate each address with a space, for example:

MANDATORY_DEVICES="eth-id-00:0C:0D:08:C4:31 eth-id-
00:0C:0D:08:C4:32"
 
 
 
Note
  You must not reboot the system between configuring the persistent interface names and configuring the interfaces to be up before starting LLT.