HP ProCurve Management And Configuration Manual page 563

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monitor ip access-group < acl-name > in: For the interface
specified by < port/trunk/mesh >, selects the IP traffic to
mirror based on the selection criteria specified in the
named ACL. (The ACL must be already configured on the
switch. Refer to "ACL Operation for Mirroring
Applications" on page B-51.)
(Using monitor without mirroring criteria or session
number affects session 1. Refer to "Monitor Command" on
page B-71.)
< acl-name >: For traffic entering the switch on the
specified interface, mirror the IP traffic having a
match with the permit ACEs in the named ACL. (IP
traffic having a match with a deny ACE, including the
implicit deny any or deny any any in the named ACL,
will not be mirrored.)
mirror < 1 - 4 | < name-str >: Assigns the traffic defined by the
interface to a session by number or (if configured) by name.
(The session must have been previously configured. Refer
to "3. Configure the Mirroring Session on the Source
Switch" on page B-43.) Depending on how many sessions
are already configured on the switch, you can use the same
command to assign the specified source to up to four
numeric or alphanumeric identifiers. For example, 1 2 4.
For limits on configuring mirroring sources to a given
session, refer to "Mirroring Source Limits" on page B-47.
< 1 - 4 > : Assigns a numeric session identifier to
associate with the traffic selected for mirroring by this
command.
[ name < name-str >] : Optional; uses a previously
configured alphanumeric identifier to associate the
traffic source with the mirroring session. The string
can be used interchangeably with the mirroring
session number when using this command to assign
a mirroring source to a session. To configure an
alphanumeric name for a mirroring session refer to
the command description under "Configuring a
Source Switch for a Mirroring Destination on a
Remote Switch" on page B-44.
Monitoring and Analyzing Switch Operation
Traffic Mirroring
B-53