7-1
7
Monitor Link Configuration
This chapter includes these sections:
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z
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Displaying and Maintaining Monitor Link
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Monitor Link Configuration Example
Overview
Monitor Link is a port collaboration function. Monitor Link usually works together with Layer 2 topology
protocols. The idea is to monitor the states of uplink ports and adapt the up/down state of downlink
ports to the up/down state of uplink ports, triggering link switchover on the downstream device in time,
as shown in
Figure 7-1
Monitor Link application scenario
Terminology
Monitor link group
A monitor link group is a set of uplink and downlink ports. A port can belong to only one monitor link
group. As shown in
, ports Port1 and Port2 of Device B and those of Device D each form a
monitor link group. Port1 on both devices are uplink ports, and Port2 on both devices are downlink
ports.
