H3C Technologies H3C S3100 Series Switches - Manual (Page 412)

Operation Manual – Mirroring
H3C S3100-52P Ethernet Switch Chapter 1 Mirroring Configuration
1-3
Switch Ports involved Function
Trunk port Receives remote mirrored packets.
Destination
switch
Destination port Monitors remote mirrored packets
To implement remote port mirroring, you need to define a special VLAN, called
remote-probe VLAN, on a switch. All mirrored packets will be transferred from the
source switch to the destination ports of the destination switch through this VLAN. Thus,
the destination switch can monitor the port packets sent from the ports of the source
switch. Remote-probe VLAN requires that:
z
All ports connecting the devices in remote-probe VLAN are configured as the trunk
ports.
z
The default VLAN and management VLAN cannot be configured as remote-probe
VLAN.
z
Layer 2 interoperability must be ensured by configuration between the source and
destination switches over the remote-probe VLAN.
Caution:
To ensure the normal packet mirroring, it is not recommended to perform any of the
following operations on the remote-probe VLAN:
z
Configuring a source port to the remote-probe VLAN that is used by the local
mirroring group;
z
Configuring a Layer 3 interface for the remote-probe VLAN;
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Configuring to run other protocol packets, or bear other service packets;
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Using remote-probe VLAN as a special type of VLAN, such as voice VLAN or
protocol VLAN;
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Configuring other VLAN-related functions.
1.2 Mirroring Configuration
For mirroring features, see section 1.1 "Mirroring Overview".
1.2.1 Configuring Port Mirroring
I. Configuration prerequisites
z
The source port is determined and whether the packets to be mirrored are inbound,
outbound or both inbound and outbound is specified. Inbound means only to
mirror the packets received by the port; outbound means only to mirror the