Mellanox MLNX-OS User Manual for SX1018HP Ethernet Managed Blade Switch

Rev 2.10
Mellanox Technologies
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5.11 Port Mirroring
Port mirroring enables data plane monitoring functionality which allows the user to send an
entire traffic stream for testing. Port mirroring sends a copy of packets of a port’s traffic stream,
called “mirrored port”, into an analyzer port. Port mirroring is used for network monitoring. It
can be used for intrusion detection, security breaches, latency analysis, capacity and performance
matters, and protocol analysis.
Figure 12 provides an overview of the mirroring functionality.
Figure 12: Overview of Mirroring Functionality
There is no limitation on the number of mirroring sources and more than a single source can be
mapped to a single analyzer destination.
5.11.1 Mirroring Sessions
Port mirroring is performed by configuring mirroring sessions. A session is an association of a
mirror port (or more) and an analyzer port.
Figure 13: Mirror to Analyzer Mapping
ACL
M1
A1
A2
A
m
M
n
S1
S2
S7
Mirror Port Analyzer PortSession
Port
M2
LAG
M3
M4