Configuring a Unique IP Address per Site (UIPS) in Dual Chassis

In a Dual Chassis deployment:

  • A heavy load on the Active Chassis can prevent you from creating a network connection to the SMO and working with management tasks.

  • It can be necessary to have a direct access to the Standby Chassis to troubleshoot a problem, such as an SGM in the DOWN state.

    You cannot use the SMO to connect to the Standby Chassis.

You can assign a unique IP address to each Standby Chassis to help resolve these issues.

This adds an alias IP address to the management interface that is assigned to the Security Group.

When there is a high load on the SMO, connect to the Standby Chassis using the unique IP address you assigned to the Standby Chassis.

The SGMs on the Standby Chassis are always in the state "UP" and available to run Gaia gClish commands.

Notes:

  • The UIPS feature is disabled by default on Scalable Chassis.

  • The UIPS feature does not support IPv6 addresses (Known Limitation MBS-9128).

  • Only one SGM runs the "UIPS" task (similar to the "SMO" task).

    In the CLI output, this task appears as "UIPC" (the former name of this feature is "Unique IP Address per Chassis").

  • If the Standby Chassis is not managed through a management port, you can add the unique IP address to one of the data ports.

    The connection to the unique IP address reaches a specific SGM based on the distribution configuration.

Description

Use the "set cluster configuration unique-ip ..." command in Gaia gClish to assign a unique IP address to a Standby Chassis.

Important - After you assign a unique IP address to a Standby Chassis, you must make sure the Access Control policy of the Security Group allows the connection to the alias IP address.

Syntax

show cluster configuration unique-ip site-id <ID of Standby Chassis> interface <Name of Mgmt Interface>

set cluster configuration unique-ip <ID of Standby Chassis> interface <Name of Mgmt Interface> ipv4-address <IPv4 Address> mask-length <Length of Subnet Mask>

set cluster configuration unique-ip <ID of Standby Chassis> apply_unique_config

delete cluster configuration unique-ip site-id <ID of Standby Chassis> interface <Name of Mgmt Interface>

Parameters

Parameter

Description

<ID of Standby Site>

Specifies the ID of the Standby Chassis.

Valid values:

  • 1 - Chassis #1

  • 2 - Chassis #2

  • all - All Chassis

<Name of Mgmt Interface>

Specifies the name of the Management Interface that is assigned to the Security Group.

For example, eth1-Mgmt1.

<IPv4 Address>

Specifies the alias IPv4 address on the same network as one of the SGMs' interfaces.

<Length of Subnet Mask>

Specifies the length of the IPv4 subnet mask.

Example 1 - Adding a UIPS

[Expert@HostName-ch0x-0x:0]# gclish
[Global] HostName-ch01-01 > set cluster configuration unique-ip 1 interface eth1-Mgmt4 ipv4-addess 172.16.6.186 mask-length 24>
1_01:
Adding Alias address 172.16.6.186 of eth1-Mgmt4
1_02:
Adding Alias address 172.16.6.186 of eth1-Mgmt4
2_01:
2_02:
Alias IP was added successfully to Site 1
Alias IP address should be added to the policy rulebase in SmartDashBoard
[Global] HostName-ch01-01 >

Example 2 - Deleting a UIPS

[Expert@HostName-ch0x-0x:0]# gclish
[Global] HostName-ch01-01 > delete cluster configuration unique-ip site-id 1 interface eth1-Mgmt4
1_01:
Deleting Alias IP 172.16.6.186 of eth1-Mgmt4
1_02:
Deleting Alias IP 172.16.6.186 of eth1-Mgmt4
2_01:
2_02:
Alias IP of Site 1 was deleted successfully
Alias IP address should be removed from the policy rulebase in SmartDashBoard
[Global] HostName-ch01-01 >