Guidelines To Configure Span; Configuring Span - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Configuring SPAN

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
•
•
•
If you need to change an SD port mode to another port mode, first remove the SD port from all sessions
Note
and then change the port mode using the switchport mode command.

Guidelines to Configure SPAN

The following guidelines apply for SPAN configurations:
•
•
•
•
•
Configuring SPAN
To monitor network traffic using SD ports, follow these steps:
Configure the SD port.
Step 1
Attach the SD port to a specific SPAN session.
Step 2
Monitor network traffic by adding source interfaces to the session.
Step 3
Configuring SPAN
To configure an SD port for SPAN monitoring, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# interface fc9/1
Step 3
switch(config-if)# switchport mode SD
Step 4
switch(config-if)# switchport speed 1000
Step 5
switch(config-if)# no shutdown
Cisco MDS 9000 Family CLI Configuration Guide
51-6
The SD port does not have a port VSAN.
SD ports cannot be configured using Storage Services Modules (SSMs).
The port mode cannot be changed if it is being used for a SPAN session.
You can configure up to 16 SPAN sessions with multiple ingress (Rx) sources.
You can configure a maximum of three SPAN sessions with one egress (Tx) port.
In a 32-port switching module, you must configure the same session in all four ports in one port
group (unit). If you wish, you can also configure only two or three ports in this unit (see the
"Generation 1 Interfaces Configuration Guidelines" section on page
SPAN frames are dropped if the sum of the bandwidth of the sources exceeds the speed of the
destination port.
Frames dropped by a source port are not spanned.
Chapter 51 Monitoring Network Traffic Using SPAN
13-2).
Purpose
Enters configuration mode.
Configures the specified interface.
Configures the SD port mode for interface fc9/1.
Configures the SD port speed to 1000 Mbps.
Enables traffic flow through this interface.
OL-18084-01, Cisco MDS NX-OS Release 4.x