Additional section:
In this section:
The Link Detection Group object allows you to group interfaces and associated Link Monitors together and track link verification failures within the group. A Link Detection Group will be configured with a unique name and a failover threshold. The Link Detection Group tracks the number of link verification failures that have occurred among the Link Monitors configured.
In addition to a Failover Threshold, a Link Detection Group can also be configured with values for the verifyTimer, responseTimer, reattemptTimer and retries. These values will be used for each Link Monitor belonging to the group, unless that Link Monitor is configured with its own unique values for these fields.
Link detection failure alarms are generated by Link Verification Manager (LVM) and are raised only when LDG is configured. NRS generated alarms are raised regardless of whether LDG is configured.
If no LDG is configured on the management ports, then SBC allows manual switch-overs.
When configuring a Link Detection Group, if the default address context is selected, the Interface type (ip or mgmt) is displayed. Whereas, when a non-default address context is selected, the ‘Type’ field does not display any option. It defaults to the type 'ip'. This is because the Management (MGMT) interfaces are not within an address context. They are configured at the system level.
To View Link Detection Group
On SBC main screen, go to Configuration > System Provisioning > Category: Base Provisioning > Link Detection Group. The Link Detection Group window is displayed.
Link Detection Group
The Link Detection Group can be checked for each Address Context or for all the Address Contexts created. Use the drop-down box to select the desired Address Context.
Link Detection Group Main Field
To Edit Link Detection Group
To edit any of the Link Detection Groups in the list, click the radio button next to the specific Link Detection Group name.
Link Detection Group Highlighted
The Edit Selected Link Detection Group window is displayed below.
Link Detection Group Edit Window
Make the required changes and click Save at the right hand bottom of the panel to save the changes made.
To Create Link Detection Group
To create a new Link Detection Group, click New Link Detection Group tab on the Link Detection Group List panel.
Link Detection Group Fields
The Create New Link Detection Group window is displayed.
Link Detection Group Create Window
The following fields are displayed:
Link Detection Group Parameters
Parameter | Description |
|---|---|
| The name of this link detection group. Must be 1-23 characters. |
| The name of the compute element that hosts this link detection group. Must be 1-23 characters. 'ce Name' is not the system name. For an HA system, link detection needs to be setup on both CEs. |
| You can choose one of the following:
|
| Specifies the link detection group threshold. Default is 2. |
| The time interval between link verification attempts. The time (in milliseconds) to send the ICMP Echo when the link is up, as well as the time to await the ICMP Echo Reply from an IP destination.
|
| Time to wait for a link verification attempt. Minimum timer value is 300 (milliseconds).
|
| Time to wait for a link verification reattempt. Minimum timer value is 300 (milliseconds).
|
| Specifies the number of retries before link verification is considered failed. Minimum is 1.
|
| It specifies the administrative state of the link detection group.
|
To Delete Link Detection Group
To delete any of the created Link Detection Group, click the radio button next to the specific Link Detection Group which you want to delete.
Link Detection Group Highlighted
Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.
Link Detection Group Delete Confirmation
Click Yes to remove the specific Link Detection Group from the list.
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