HP ProCurve Management And Configuration Manual page 554

Monitoring and Analyzing Switch Operation
Traffic Mirroring
C a u t i o n
B-44
Syntax: mirror < 1 - 4 > port < port-# > [name < name-str >]
no mirror < 1- 4 >
This command assigns the exit port to use for the specified
mirroring session, and must be executed from the global
configuration level.
The no form of the command removes the mirroring session
and any mirroring source previously assigned to that
session. To preserve the session while deleting a mirroring
source assigned to it, refer to the no command descriptions
under "4. Configure Mirroring Sources" on page B-47.
< 1 - 4 > : Identifies the mirroring session created by this
command. (Multiple sessions on the switch can use the
same exit port.)
name < name-str > : Optional alphanumeric name string used
to identify the session. Can be up to 15 characters in length.
port < port-# > : Exit port for mirrored traffic from the
specified session. This is the port to which a traffic analyzer
or IDS should be connected.
Configuring a Source Switch for a Mirroring Destination on a Remote
Switch. Use this command when you want to mirroring traffic from a source
switch to an exit port on a remote mirroring destination switch. For a given
session, the values for the fields in this command should already be configured
in the destination switch. (Refer to steps 1 and 2 on page B-41.)
Configuring a switch with the traffic selection criteria and destination for a
given mirroring session starts traffic mirroring to that destination. In the case
of remote mirroring, which uses IPv4 encapsulation, if the intended exit
switch is not already configured as the destination for that session, its perfor­
mance may be adversely affected by the stream of mirrored traffic. For this
reason, ProCurve strongly recommends that you configure the exit switch for
a remote mirroring session, as described under "2. Configure the Remote
Mirroring Session on Destination Switch" on page B-41, before using the
command in this section to configure the source switch for that same session.