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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 (LDG) is configured with a unique name and a failover threshold. The Link Detection Group LDG 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 for the verifyTimer Verify Timer, responseTimer Response Timer, reattemptTimer Reattempt Timer and retriesRetries. These These values will be are used for each Link Monitor belonging to the group, unless that Link Monitor is configured with its own unique values for these fields.
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Link detection failure alarms are generated by Link Verification Manager (LVM) and are raised only when Link Detection Group (LDG) is configured. NRS generated alarms are raised regardless of whether LDG is configured. |
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If no LDG is configured on the management ports, then SBC allows manual switch-overs. |
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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. |
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| Up to 100 Link Detection Groups are configurable on the A manual switchover is not allowed when the LDGs are configured on both active and standby
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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.
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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.
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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.
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The Edit Selected Link Detection Group window is displayed below.
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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.
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The Create New Link Detection Group window is displayed.
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The following fields are displayed:
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| 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.
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| You You can choose one of the following:
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| 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.
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| Time to wait for a link verification attempt. Minimum timer value is 300 (milliseconds).
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| Time to wait for a link verification reattempt. Minimum timer value is 300 (milliseconds).
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| Specifies the number of retries before link verification is considered failed. Minimum is 1.
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| It specifies the administrative state of the link detection group.
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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.
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Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.
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Click Yes to remove the specific Link Detection Group from the list.
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Additional Sections:
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