Veritas™ Appliance iSCSI Guide

Last Published:
Product(s): Appliances (3.0)
Platform: NetBackup Appliance OS

Configuring the interface properties

This section lists the procedures for configuring interface properties like gateway, IPv4 address, Netmask, Maximum Transmission Unit (MTU), and the VLAN Tag for an ISCSI interface.

The MTU controls the maximum transmission unit size for an Ethernet frame. It must be a number from 68 to 65535. When you configure the MTU for an iSCSI interface, the new MTU value is configured for the iSCSI interface and the network interface to which it is mapped.

VLAN Tagging is the practice of inserting a VLAN ID into a packet header to identify to which VLAN the packet belongs. More specifically, switches use the VLAN ID to determine which ports, or interfaces, to send a broadcast packet to.

A VLAN can be configured on either the network interface or the iSCSI interface. If VLAN is configured on both the network and iSCSI interface, the VLAN for the network interface is effective on both the interfaces.

To configure the IP address

  1. Open a Secure Shell (SSH) session to log on to the appliance as an administrator.
  2. Navigate to the Main_Menu > Settings > iSCSI menu.
  3. Type the command Interface IPAddress Set.
  4. Enter the IP address and the iSCSI interface name as parameters. Press Enter.

    Example:

     iSCSI> Interface IPAddress Set 10.80.156.88 iscsi1
    [Info] The IP address has been configured for iscsi1.

Note:

The values that are used in the examples are sample placeholder values.

To configure the Netmask

  1. Open a Secure Shell (SSH) session to log on to the appliance as an administrator.
  2. Navigate to the Main_Menu > Settings > iSCSI menu.
  3. Type the command Interface Netmask Set.
  4. Enter the Netmask value and the iSCSI interface name as parameters. Press Enter.

    Example:

     iSCSI> Interface Netmask Set 255.255.255.0 iscsi10
    [Info] The Netmask has been configured for iscsi10.

To configure the gateway

  1. Open a Secure Shell (SSH) session to log on to the appliance as an administrator.
  2. Navigate to the Main_Menu > Settings > iSCSI menu.
  3. Type the command Interface Gateway Set.
  4. Enter the gateway value and the iSCSI interface name as parameters. Press Enter.

    Example:

     iSCSI> Interface Gateway Set 192.168.4.1
				iscsi10
    [Info] The gateway has been configured for iscsi10.

To configure the Maximum Transmission Unit (MTU)

  1. Open a Secure Shell (SSH) session to log on to the appliance as an administrator.
  2. Navigate to the Main_Menu > Settings > iSCSI menu.
  3. Type the command Interface MTU Set.
  4. Enter the MTU value and the iSCSI interface name.

    The MTU must be a number from 68 to 65535. The new MTU value applies to the iSCSI interface and also the network interface that it maps to.

    Example: 

    iSCSI> Interface MTU Set 3000 iscsi10
    The new MTU value applies to both iscsi1 and 
also network interface eth6. 
Do you want to continue?(yes/no)[no]:yes
    [Info] The MTU has been configured for iscsi10.

To configure the VLAN tag

  1. Open a Secure Shell (SSH) session to log on to the appliance as an administrator.
  2. Navigate to the Main_Menu > Settings > iSCSI menu.
  3. Type the command Interface VLAN Set.
  4. Enter the VLAN ID and the iSCSI interface name as parameters. Press Enter.

    The VLAN ID must be a number from 1 to 4095.

    Example:

     iSCSI> Interface VLAN Set 75 iscsi10
    [Info] The VLAN tag has been configured for iscsi10.