VSB Chassis Configuration

VSB chassis configuration must take place before the system is VSB globally enabled. Prior to a VSB system being globally enabled, you can modify the VSB chassis configuration as needed. Once a VSB system is globally enabled using the set bonding command (See Globally Enabling and Disabling the VSB System), VSB specific chassis configuration can not be modified. VSB must be disabled globally, reverting each chassis to a non-VSB state, in order to make modifications to the VSB chassis configuration.

There are two values associated with a VSB chassis configuration:

• Chassis ID – Identifies the physical chassis member of the VSB system.
• System ID – Identifies the VSB system made up of two physical chassis

VSB chassis ID valid values are 1 and 2. The VSB chassis ID both identifies the VSB chassis and determines chassis slot assignments within a globally enabled VSB system. After the chassis ID and system ID have been configured, but prior to globally enabling VSB, slot numbering does not differ from standard slot numbering.

Once the system has been globally enabled for VSB:

• Chassis 1 slots are numbered the same as a non-VSB physical chassis.
• Chassis 2 slots are numbered starting with the maximum number of supported chassis slots plus 1.

For example, when bonding two three slot chassis, chassis 1 slots are numbered 1, 2 and 3, and chassis 2 slots are numbered 4, 5 and 6.

VSB Slot Numbering displays a three slot chassis based VSB system with slot numbering for both a pre-VSB globally enabled system when only the chassis and system ID are configured and a VSB globally enabled VSB system.

The VSB system ID is configured with the same value on each chassis in a given VSB system. The VSB system ID is used to identify the bonded system as a whole. VSB does not enforce unique VSB system ID values between systems, but it is highly recommended that each system be configured with a unique value for management purposes. Valid VSB system ID values are 1—18446744073709551615.

A VSB secret can be configured to add security to the VSB links. The VSB secret can be up to 32 printable characters long. If a space is used, the secret must be enclosed in double quotes (""). The secret can be created or modified at any time. The secret can be overwritten without first clearing it. If a secret only exists on a single chassis, the VSB system will segment until the same secret is present on both physical chassis in the system. A VSB secret is configured using the secret option of the set bonding chassis command.

Use the set bonding chassis command to configure a VSB chassis.

Use the clear bonding chassis command to clear the VSB chassis configuration, only if VSB is not globally enabled on the chassis.