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ISCOM2600G-HI (A) Series Configuration Guide
11.3 Link-state tracking
11.3.1 Introduction
Link-state tracking is used to provide interface linkage scheme for specific application and it
can extend range of link backup. By monitoring uplinks and synchronizing downlinks, add
uplink and downlink interfaces to a link-state group. Therefore, the fault of the upstream
device can be informed to the downstream device to trigger switching. Link-state tracking can
be used to prevent traffic loss due to failure in sensing the uplink fault by the downstream
device.
When all uplink interfaces fail, down link interfaces are configured to Down status. When at
least one uplink interface recovers, the downlink interface recovers to Up status. Therefore,
the fault of the upstream device can be informed to the downlink device immediately. Uplink
interfaces are not influenced when the downlink interface fail.
11.3.2 Preparing for configurations
Scenario
When uplink fails, traffic cannot be switched to the standby link if the downlink device fails
to be notified in time. Then traffic will be disrupted.
Link-state tracking can be used to add downlink interfaces and uplink interfaces of the middle
device to a link-state group and monitor uplink interfaces. When all uplink interfaces fails, the
fault of the upstream device can be informed to the downstream device to trigger switching
from the active link to the standby link and to reduce traffic loss.
Prerequisite
N/A
11.3.3 Default configurations of link-state tracking
Default configurations of link-state tracking are as below.
Link-state group
Action for processing faults on the interface
Link-state group Trap
11.3.4 Configuring link-state tracking
Link-state tracking supports being configured on the physical interface and LAG
interface.
Configure link-state tracking for the ISCOM2600G-HI series switch as below.
Function
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Copyright © Raisecom Technology Co., Ltd.
Default value
N/A
N/A
Disable
11 Reliability
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