How to configure sFlow on the Cisco Catalyst 2960-L

sFlow has the following prerequisites:

• Ensure that the collector destination is reachable.
• IP Routing must be enabled on the device.

sFlow has the following guidelines:

• When you enable sFlow for an interface, you can do it for ingress, egress, or both directions.
  You should configure the sampling rate based on the sFlow configuration and traffic in the system.

sFlow has the following limitations:

• sFlow is supported only on the physical interface.
• The switch supports two sFlow collectors.
• sFlow is not supported when the device boots up in stack mode.

Items that are between { } and in bold should be replaced with values specific to the environment being configured.


1. Configure the sFlow and apply it to the interface
   

   configure terminal
   sflow agent ip {Switch_IP_Address}
   sflow collector id 1 ip {collector_IP_Address} port 6343
   interface {interfaceName}
   sflow flow-sampling input id 1 rate 256
   sflow flow-sampling output id 1 rate 256
   end
   copy running-config startup-config

2. (Optional) Check the sFlow configuration
   

   show sflow
   show sflow interface {interfaceName}