3Com Switch 7750 Configuration Guide

934 CHAPTER 85: MONITOR LINK CONFIGURATION
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CAUTION:
A Smart Link/Monitor Link group with members cannot be deleted. A Smart
Link group as a Monitor Link group member cannot be deleted.
The Smart Link/Monitor Link function and the remote port mirroring function
are incompatible with each other.
If a single port is specified as a Smart Link/Monitor Link group member, do not
use the lacp enable command on the port or add the port to another dynamic
link aggregation group because doing so will cause the port to become an
aggregation group member.
Using the copy command on a port does not copy the Smart Link/Monitor Link
group member information configured on the port to any other port.
Displaying Monitor
Link Configuration
After the above-mentioned configuration, you can use the display command in
any view to display the information about Monitor Link, so as to verify
configuration result.
Monitor Link
Configuration
Example
Implementing
Collaboration Between
Smart Link and Monitor
Link
Network requirements
As shown in Figure 261, the PCs access the server and Internet through the
switch. Configure Smart Link and Monitor Link to prevent the PCs from failing to
access the server and Internet due to uplink link or port failure.
Configure a
downlink port for
the Monitor Link
group
Configure the specified link
aggregation group as a downlink port
of the Monitor Link group
link-aggregation
group group-id
downlink
Required
Use either
approach
Configure the
specified
Ethernet port as a
downlink port of
the Monitor Link
group
Monitor Link group
view
port interface-type
interface-number
downlink
Ethernet port view quit
interface
interface-type
interface-number
port monitor-link
group group-id
downlink
Table 722 Configure a downlink port
Operation Command Remarks
Table 723 Display Monitor Link configuration
Operation Command Remarks
Display the information about
one or all Monitor Link groups
display monitor-link
group { group-id | all }
You can use the display
command in any view.