Cisco Nexus 5600 Series - Guidelines and Limitations for ERSPAN Type III; Default Settings for ERSPAN; Configuring ERSPAN; Configuring an ERSPAN Source Session

Guidelines and Limitations for ERSPAN Type III
ERSPAN Type III has the following guidelines and limitations:
•
Only IPv4 networks are supported by ERSPAN Type III. IPv6 networks are not supported by ERSPAN
Type III but IPv6 packets can be captured by ERSPAN.
•
To calculate packet latency across ports, ERSPAN timestamp should be taken from the Precision Time
Protocol (PTP) clock and the PTP feature must be enabled on the switch.
Default Settings for ERSPAN
The following table lists the default settings for ERSPAN parameters.
Table 30: Default ERSPAN Parameters
DefaultParameters
Created in the shut state.ERSPAN sessions
Configuring ERSPAN
Configuring an ERSPAN Source Session
The ERSPAN source session defines the session configuration parameters and the ports or VLANs to be
monitored. This section describes how to configure an ERSPAN source session.
Procedure
PurposeCommand or Action
Enters global configuration mode.configuration terminal
Example:
switch# config t
switch(config)#
Step 1
Defines an ERSPAN source session using the session
ID and the session type, and places the command in
ERSPAN monitor source session configuration mode.
monitor session span-session-number
type {erspan-source | local}
Example:
switch(config)# monitor session 1
type erspan-source
switch(config-erspan-src)#
Step 2
The span-session-number argument range is from 1 to
1024. The same session number cannot be used more
than once.
The session IDs for source sessions are in the same
global ID space, so each session ID is globally unique.
Cisco Nexus 5600 Series NX-OS System Management Configuration Guide, Release 7.x
OL-31641-01 201
Configuring ERSPAN
Guidelines and Limitations for ERSPAN Type III