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Example: Configuring Chassis Cluster Redundancy Group IP Address Monitoring

Requirements

Before you begin:

• Set the chassis cluster node ID and cluster ID. See Example: Setting the Chassis Cluster Node ID and Cluster ID.
• Configure the chassis cluster management interface. See Example: Configuring the Chassis Cluster Management Interface.
• Configure the chassis cluster fabric. See Example: Configuring the Chassis Cluster Fabric.

Overview

You can configure redundancy groups to monitor upstream resources by pinging specific IP addresses that are reachable through redundant Ethernet interfaces on either node in a cluster. You can also configure global threshold, weight, retry interval, and retry count parameters for a redundancy group. When a monitored IP address becomes unreachable, the weight of that monitored IP address is deducted from the redundancy group IP address monitoring global threshold. When the global threshold reaches 0, the global weight is deducted from the redundancy group threshold. The retry interval determines the ping interval for each IP address monitored by the redundancy group. The pings are sent as soon as the configuration is committed. The retry count sets the number of allowed consecutive ping failures for each IP address monitored by the redundancy group.

In this example, you configure the following settings for redundancy group 1:

• IP address to monitor—10.1.1.10
• IP address monitoring global-weight—100
• IP address monitoring global-threshold—200

  Note: The threshold applies cumulatively to all IP addresses monitored by the redundancy group.

• IP address retry-interval—3 seconds
• IP address retry-count—10
• Weight—150
• Redundant Ethernet interface—reth1.0
• Secondary IP address—10.1.1.101

Configuration

CLI Quick Configuration

To quickly configure redundancy group IP address monitoring, copy the following commands and paste them into the CLI:

Step-by-Step Procedure

1. Specify a global monitoring weight.
   {primary:node0}[edit]user@host# set chassis cluster redundancy-group 1 ip-monitoring global-weight 100
2. Specify the global monitoring threshold.
   {primary:node0}[edit]user@host# set chassis cluster redundancy-group 1 ip-monitoring global-threshold 200
3. Specify the retry interval.
   {primary:node0}[edit]user@host# set chassis cluster redundancy-group 1 ip-monitoring retry-interval 3
4. Specify the retry count.
   {primary:node0}[edit]user@host# set chassis cluster redundancy-group 1 ip-monitoring retry-count 10
5. Specify the IP address to be monitored, weight, redundant Ethernet interface, and secondary IP address.
   {primary:node0}[edit]user@host# set chassis cluster redundancy-group 1 ip-monitoring family inet 10.1.1.10 weight 100 interface reth1.0 secondary-ip-address 10.1.1.101

Results

From configuration mode, confirm your configuration by entering the show chassis cluster redundancy-group 1 command. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.

For brevity, this show command output includes only the configuration that is relevant to this example. Any other configuration on the system has been replaced with ellipses (...).

If you are done configuring the device, enter commit from configuration mode.

Verification

Verifying the Status of Monitored IP Addresses for a Redundancy Group

Purpose

Verify the status of monitored IP addresses for a redundancy group.

Action

From operational mode, enter the show chassis cluster ip-monitoring status command. For information about a specific group, enter the show chassis cluster ip-monitoring status redundancy-group command.

node0:
--------------------------------------------------------------------------

Redundancy group: 1

IP address                Status        Failure count  Reason
10.1.1.10                 reachable       0            n/a
10.1.1.101                reachable       0            n/a


node1:
--------------------------------------------------------------------------

Redundancy group: 1

IP address                Status        Failure count  Reason
10.1.1.10                 reachable       0            n/a
10.1.1.101                reachable       0            n/a