Setting Port Mirroring; Configuring Traffic Mirroring - 3Com 5500-SI Configuration Manual

362 C 19: ACL C
HAPTER

Setting Port Mirroring

Configuring Traffic
Mirroring
ONFIGURATION
Configuration example for setting priority of a protocol packet
1 Change OSPF protocol packets' IP priority to be 3.Enter system view.
<S5500> system-view
[S5500]
2 Set OSPF protocol packets' IP priority to be 3.
[S5500] protocol-priority protocol-type OSPF ip-precedence 3
3 Display the priority of protocol packets.
[S5500] display protocol-priority
Port mirroring means duplicating data on the monitored port to the designated mirror
port, for purpose of data analysis and supervision.
The Switch supports one monitor port and one mirroring port. If several Switches
form a Fabric, only one monitor port and one mirroring port can be configured in the
Fabric.
Configure Port Mirroring
1 Configure monitor port
Perform the following configuration in the Ethernet Port View.
Table 371 Configure Monitor Port
Operation
Configure a monitor port
Only one monitor port can be configured on one Switch. If a group of Switches form
a fabric, only one monitor port can be configured on one fabric.
2 Configure the mirroring port.
Perform the following configuration in the Ethernet Port View.
Table 372 Configure Mirroring Port
Operation
Configure mirroring port
Delete Port Mirroring
1 Delete mirroring port
Perform the following configuration in the Ethernet Port View.
Table 373 Delete Mirroring Port
Operation
Delete a mirroring port
2 Delete monitor port.
Perform the following configuration in the Ethernet Port View.
Table 374 Delete Monitor Port
Operation
Delete monitor port
The function of traffic mirroring is to copy the traffic matching an ACL rule to the
designated observing port to analyze and monitor the packets.
Command
monitor-port
Command
mirroring-port { inbound | outbound | both }
Command
undo mirroring-port { inbound | outbound | both }
Command
undo monitor