Tag :: Sflow

Sflow samples can be augmented with additional Extended gateway data by getting data from BGP in addition to

Flow Analytics (Beta). NOTE: This is a beta feature in the 2019.1.0 and 2020.1.0 release and is not enabled by

sFlow is a sampling technique which monitors the incoming traffic on all the interfaces without affecting the network performance.

Mirror on drop is a network visibility feature which allows monitoring of MPLS or IP flow drops occurring in the ingress pipeline. When such a drop is detected, it is sent to the control plane where it is processed and then sent to configured collectors. Additionally, CLI show commands provide general and detailed statistics and status.

Sampled flow tracking with IPFIX export is supported on most of the Arista platforms. User configured sampling rate is used for sampling in ingress and/or egress direction on the configured interfaces. An EOS software agent on CPU processes samples received from hardware, samples are used to create flow records that are exported to IPFIX collectors. Refer to Sampled flow tracking TOI for additional details.

Network administrators require access to flow information that passes through various network elements, for the purpose of analyzing and monitoring their networks. This feature provides access to IP flow information by sampling traffic flows in ingress and/or egress directions on the interfaces on which it is configured.

Sflow samples can be augmented with additional Extended gateway data by getting data from BGP in addition to

When packets are encapsulated in tunnels via protocols such as GRE, sFlow samples with version 5 default extensions

The sFlow source IP address (also known as the agent IP address) is placed in the sFlow datagrams that the switch sends

Packets sampled for sFlow are packaged in a flow sample structure containing, amongst other things, input and output

Packets sampled for sFlow are packaged in a flow sample structure containing, amongst other things, input and output

The feature allows egress sFlow sampling to be enabled per a subinterface. The egress sFlow sampling per a subinterface configuration will only have effect when egress sFlow sampling is disabled on the parent interface as egress sFlow sampling on the parent interface includes traffic on all subinterfaces.

sFlow is a multi-vendor sampling feature that helps to monitor application level traffic flow. For ingress sFlow, sampling can be configured on a set of interfaces and port-channels where the application data is flowing inbound.

The pre-existing "show sflow" command has a "Number of datagrams" field that indicates the total number of datagrams sent to all sFlow collectors. This feature will add finer granularity by allowing users of software sFlow to view the number of datagrams sent to each sFlow collector.

The pre-existing "show sflow" command has a "Number of samples" field that indicates the total number packets sampled across all sFlow enabled interfaces. This feature will add finer granularity by allowing users of software sFlow to view the number of packets sampled at each sFlow enabled interface in the ingress and egress directions.

By default, sFlow samples that are generated have a fixed size: 128 bytes. This feature adds support for a

This feature adds support for a selected set of configured interfaces to collect egress flow samples. Egress sFlow can be configured on ethernet and port-channel interfaces.