Port Mirroring; Multiple Port Mirroring - NETGEAR GSM7252PS - ProSafe 52 Ports Gigabit Ethernet L2 Managed Stackable Switch User Manual

ProSafe® Gigabit L3 Managed Stackable Switches Software Administration Manual
Format of the messages
• Total number of Messages: Number of persistent log messages displayed on the
switch.
• <15>Aug 24 05:34:05 STK0 MSTP[2110]: mspt_api.c(318) 237 %% Interface 12
transitioned to root state on message age timer expiry
The above example indicates a user-level message (1) with severity 7 (debug) on a
system that is not stack and generated by component MSTP running in thread id 2110 on
Aug 24 05:34:05 by line 318 of file mstp_api.c. This is the 237th message logged.
Messages logged to a collector or relay via syslog have an identical format to the above
message.

Port Mirroring

The page under the Mirroring link allows you to view and configure port mirroring on the
system.

Multiple Port Mirroring

Port mirroring selects the network traffic for analysis by a network analyzer. This is done for
specific ports of the switch. As such, many switch ports are configured as source ports and
one switch port is configured as a destination port. You have the ability to configure how
traffic is mirrored on a source port. Packets that are received on the source port, that are
transmitted on a port, or are both received and transmitted, can be mirrored to the destination
port.
The packet that is copied to the destination port is in the same format as the original packet
on the wire. This means that if the mirror is copying a received packet, the copied packet is
VLAN tagged or untagged as it was received on the source port. If the mirror is copying a
transmitted packet, the copied packet is VLAN tagged or untagged as it is being transmitted
on the source port.
Use the Multiple Port Mirroring page to define port mirroring sessions.
To access the Multiple Port Mirroring page, click Monitoring

Mirroring > Port Mirroring.
Chapter 7. Monitoring the System | 571