Shutting Down Or Activating An Erspan Session - Cisco Nexus 5600 Series Configuration Manual

Shutting Down or Activating an ERSPAN Session

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Shutting Down or Activating an ERSPAN Session
You can shut down ERSPAN sessions to discontinue the copying of packets from sources to destinations.
Because only a specific number of ERSPAN sessions can be running simultaneously, you can shut down a
session to free hardware resources to enable another session. By default, ERSPAN sessions are created in the
shut state.
Cisco Nexus 5600 Series NX-OS System Management Configuration Guide, Release 7.x
212
Command or Action
destination ip ip-address
Example:
switch(config-span-on-latency-erspan)#
destination ip 10.0.3.1
erspan-id flow-id
Example:
switch(config-span-on-latency-erspan)#
erspan-id 30
ip ttl flow-id
Example:
switch(config-span-on-latency-erspan)#
erspan-id 30
ip dscp flow-id
Example:
switch(config-span-on-latency-erspan)#
ip dscp 63
mtu mtu-value
Example:
switch(config-span-on-latency-erspan)#
mtu 1500
exit
Example:
switch(config-span-on-latency-erspan)#
exit
copy running-config startup-config
Example:
switch(config)# copy running-config
startup-config
Purpose
Configures the session destination IP address.
Configures the flow ID for the session.
The range is from 1 to 1023.
(Optional)
(Optional) Configures the IP time-to-live (TTL)
value of the ERSPAN traffic
The range is from 1 to 255.
(Optional)
(Optional)Configures the differentiated services
code point (DSCP) value of the packets in the
ERSPAN traffic.
The range is from 0 to 63.
(Optional)
(Optional) Defines the maximum transmission unit
(MTU) truncation size for ERSPAN packets. Valid
values are from 64 to 1518.
The default is no truncation enabled.
Updates the configuration and exits ERSPAN
SPAN-on-Latency session configuration mode.
(Optional)
Saves the change persistently through reboots and
restarts by copying the running configuration to
the startup configuration.
Configuring ERSPAN
OL-31641-01