Traffic Mirroring - HP ProCurve 6120G/XG Configuration Manual

Traffic Mirroring

Mirror Features
Feature
Mirror CLI Quick Reference
Configure Mirror Source
Configure Mirror Destination at Source
Display Mirror Configuration
Traffic mirroring (Intelligent Mirroring) allows you to mirror (send a copy of)
network traffic received or transmitted on a switch interface to a local
destination, such as a traffic analyzer or intrusion detection system (IDS).
Traffic mirroring provides the following benefits:
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Mirroring destinations. Traffic mirroring supports destination devices
that are connected to the local switch:
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C o n f i g u r a t i o n
Using the CLI, you can make full use of the switch's local mirroring capabili­
N o t e s
ties. Using the Menu interface, you can configure only local mirroring for a
group of ports and/or static trunks.
Only a single mirror port session is supported.
Mirrored frames exceeding the allowed maximum transmission unit (MTU)
size will be dropped. Also, the switch applies a 54-byte IPv4 header to mirrored
frames. For more information, including the size limitation for jumbo and non-
jumbo frames, see "Maximum Supported Frame Size" on page B-42.
Selecting mirrored traffic. You can use any of the following options to
select the traffic to be mirrored on a port or trunk interface in a local session:
Allows you to monitor the traffic flow on specific source interfaces
Helps in analyzing and debugging problems in network operation result­
ing from a misbehaving network or an individual client. The mirroring of
selected traffic to an external device makes it easier to diagnose a network
problem from a centralized location ina topology spread across a campus.
Traffic can be copied to a destination connected to the same switch as the
mirroring source in a local mirroring session. Up to four local mirroring
destinations are supported on a switch.
Monitoring and Analyzing Switch Operation
Default Menu CLI
n/a n/a B-34
disabled page B-29 page B-35
disabled page B-29 page B-35
n/a page B-29 page B-38
Traffic Mirroring
B-23