Configuring sFlow

ExtremeXOS allows you to collect sFlow statistics on a per port basis.

An agent residing locally on the switch sends data to a collector that resides on another machine. You configure the local agent, the address of the remote collector, and the ports of interest for sFlow statistics gathering. You can also modify default values for how frequently on an average a sample is taken and the maximum number of samples allowed before throttling the sample gathering.

To configure sFlow on a switch:

Configure the local agent
Configure the addresses of the remote collectors
Enable sFlow globally on the switch
Enable sFlow on the desired ports

Optionally, you may also change the default values of the following items:

How often the statistics are collected
How frequently a sample is taken, globally or per port
How many samples per second can be sent to the CPU

Configuration Tasks

Use the following commands to configure the sFlow feature:

enable sflow ports all | port_list {ingress | egress | both}
The keyword options enable you to configure sFlow types on a given set of ports. If you do not configure an sFlow type, then ingress sFlow sampling is enabled as the default configuration.

Use the following commands to display the type of sFlow configured on the physical interface, and various statistics about sFlow sampling:

show sflow configuration
show sflow statistics
The following fields are displayed:
- Received frames—Number of frames received on sFlow enabled ports.
- Sampled Frames—Number of packets that have been sampled by sFlow.
- Transmitted Frames—Number of UDP packets sent to remote collector(s).
- Broadcast Frames—Number of broadcast frames received on sFlow enabled ports.
- Multicast Frames—Number of multicast frames received on sFlow enabled ports.
- Packet Drops—Number of samples dropped.

Published March 2020prev | next

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