R211x-HP Flexfabric 11900 Network Management and Monitoring Configuration Guide

155
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure the port as the
monitor port for the specified
mirroring group.
mirroring-group group-id
monitor-port
By default, a port does not serve as
the monitor port for any local
mirroring group.
Using the remote probe VLAN to enable local mirroring to
support multiple monitor ports
In typical local port mirroring configuration, you can configure only one monitor port in a local mirroring
group. As a result, you cannot monitor traffic of a local device on multiple data monitoring devices. To
do that, take advantage of the remote probe VLAN used in Layer 2 remote mirroring.
In Layer 2 remote port mirroring, a remote probe VLAN is configured, and the mirrored packets are
broadcast within the remote probe VLAN. By connecting multiple data monitoring devices to the remote
probe VLAN's member ports, you can monitor the local device's traffic on multiple data monitoring
devices.
Configure this feature by following these steps:
1. Configure a remote source group on the local device.
2. Configure the monitored ports on the device as source ports of this mirroring group.
3. Configure a remote probe VLAN for this mirroring group.
4. Assign the ports connecting the data monitoring devices to the remote probe VLAN.
In this way, when packets mirrored on the monitored ports are broadcast in the remote probe VLAN, they
are sent out of the ports connecting the data monitoring devices, and all data monitoring devices can
thus receive these mirrored packets.
Configuration restrictions and guidelines
When you use the remote probe VLAN to enable local mirroring to support multiple monitor ports, follow
these restrictions and guidelines:
• You cannot configure a Layer 2 aggregate interface or a tunnel interface as the reflector port.
• HP recommends configuring an unused port as the reflector port of a remote source group, and not
connecting a cable to the reflector port.
• A mirroring group can contain multiple source ports.
• To make sure the port mirroring function operates correctly, do not assign a source port to the
remote probe VLAN.
• If you have already configured a reflector port for a remote source group, you can no longer
configure an egress port for it.
• A VLAN can serve as the remote probe VLAN for only one remote source group. HP recommends
that you use the remote probe VLAN for port mirroring exclusively. Do not create a VLAN interface
for the VLAN or configure any other features for the VLAN.