Criteria For Selecting Traffic To Mirror; Mirrored Traffic Operation And Options; Mirroring Sessions - HP ProCurve Management And Configuration Manual

Monitoring and Analyzing Switch Operation
Traffic Mirroring
B-28
static VLANs: Supports traffic mirroring on static VLANs configured on
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the switch. This option enables easy mirroring of traffic from all ports on
a VLAN. It automatically adjusts mirroring to include traffic from newly
added ports, and to exclude traffic from ports removed from the VLAN.

Criteria for Selecting Traffic To Mirror

On the traffic sources listed above, you can use the following criteria to select
traffic to mirror:
direction of traffic movement (entering or leaving the switch, or both)
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■ type of IP traffic entering the switch, as defined by an ACL (Access Control
List)

Mirrored Traffic Operation and Options

Switches running software release K.12.xx or greater support the following:
■ four mirroring destinations configured to correspond to local mirroring
source sessions
32 mirroring destinations configured to correspond to remote mirroring
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source sessions
four local or remote mirroring source sessions
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Mirroring Sessions

A mirroring source can be a port or static-trunk list, a mesh, or a VLAN. A
mirroring source and a mirroring destination comprise a given mirroring
session. For any session, the destination must be a single (exit) port. (It cannot
be a trunk, VLAN, or mesh.) Multiple mirroring sessions can be mapped to the
same exit port, which provides flexibility in distributing hosts such as traffic
analyzers or an IDS. On the mirroring destination switch, the port through
which the mirrored traffic for a given session enters the switch and the exit
port for that same session must belong to the same VLAN. (Refer to "2.
Configure the Remote Mirroring Session on Destination Switch" on page
B-41.)
Each of the four mirroring sessions supported at a mirroring source can have
either the same or a different destination. Destination options include an exit
port on the source (local) switch and/or on one remote ProCurve switch
configured to support remote mirroring. This offers the following benefits:
Mirrored traffic belonging to each session can be directed to the same
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destination or to different destinations.