Filter
Top Products
Monitoring and Analyzing Switch Operation
Traffic Mirroring
Traffic Mirroring
Mirror Features
Feature Default Menu CLI
Mirror CLI Quick Reference n/a n/a B-45, B-47
Configure Mirror Source disabled page B-39 page B-49
Configure Mirror Destination at Source disabled page B-39 page B-52
Configure Remote Mirroring at Destination disabled n/a page B-50
Display Mirror Configuration n/a page B-39 page B-76
Starting in software release K.12.xx, traffic mirroring (Intelligent Mirroring)
allows you to mirror (send a copy of) network traffic received or transmitted
on a switch interface to a local or remote destination, such as a traffic analyzer
or intrusion detection system (IDS).
Traffic mirroring provides the following benefits:
■ 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 in a topology spread across a campus.
■ Supports remote mirroring to simultaneously mirror switch traffic on one
or more interfaces to multiple remote destinations. (In remote mirroring,
you must first configure the remote mirroring endpoint — remote switch
and exit port — before you specify a mirroring source for a session.)
Mirroring destinations. Traffic mirroring supports destination devices
that are connected to the local switch or a remote switch:
■ Traffic can be copied to a destination (host) device connected to the same
switch as the mirroring source in a local mirroring session. You can
configure up to four exit ports to which destination devices are connected
in local mirroring sessions on a switch.
■ Traffic can be bridged or routed to a destination device connected to a
different switch in a remote mirroring session. You can configure up to 32
remote mirroring endpoints (IP address and exit port) to which destina-
tion devices are connected in remote mirroring sessions on a switch.
B-28