- Written by Bill Conner
- Posted on March 12, 2020
- Updated on March 12, 2020
- 7280 Views
Sflow samples can be augmented with additional Extended gateway data by getting data from BGP in addition to
- Written by Paul McDade
- Posted on January 12, 2024
- Updated on January 12, 2024
- 3058 Views
Enable egress sFlow to sample traffic sent to any DANZ Monitoring Fabric (DMF) Recorder Node (RN) attached to the fabric. Examining these sampled packets on a configured sFlow collector allows the identification of post-match-rule flows recorded by the RNs without performing a query against the RNs. While not explicitly required, Arista Networks highly recommends using the DMF Analytics Node (AN) as the configured sFlow collector, as it can automatically identify packets sampled utilizing this feature.
- Written by Gagan Arneja
- Posted on April 29, 2020
- Updated on January 15, 2021
- 7516 Views
Flow Analytics (Beta). NOTE: This is a beta feature in the 2019.1.0 and 2020.1.0 release and is not enabled by
- Written by Tanuj Kumar Jhamb
- Posted on October 20, 2022
- Updated on July 11, 2023
- 8013 Views
sFlow is a sampling technique which monitors the incoming traffic on all the interfaces without affecting the network performance.
- Written by Abdul Haseeb Jehangir
- Posted on March 12, 2020
- Updated on July 17, 2024
- 11085 Views
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.
- Written by Adrian Fettes
- Posted on April 22, 2024
- Updated on April 22, 2024
- 2260 Views
An interface may be a source for both a mirroring session and sFlow at the same time. For more information about mirroring and ingress and egress sFlow look in the Resources section below.
- Written by Jeevan Kamisetty
- Posted on February 26, 2021
- Updated on July 18, 2023
- 10886 Views
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.
- Written by Jeevan Kamisetty
- Posted on November 4, 2020
- Updated on October 4, 2024
- 14169 Views
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. The samples are then used to create flow records, which are exported to the configured collectors in the IPFIX format. Egress Flow tracking is supported from EOS-4.29.0F on the DCS-7170B-64C series and supported on 7280, 7500 and 7800 series platforms from EOS-4.31.1".
- Written by Lakshmana Sitarama Kishore Suri
- Posted on June 10, 2019
- Updated on June 20, 2019
- 6383 Views
Sflow samples can be augmented with additional Extended gateway data by getting data from BGP in addition to
- Written by Michael (Mike) Fink
- Posted on June 13, 2019
- Updated on June 20, 2019
- 6706 Views
When packets are encapsulated in tunnels via protocols such as GRE, sFlow samples with version 5 default extensions
- Written by Rehmanali Jiwani
- Posted on January 6, 2022
- Updated on January 6, 2022
- 6403 Views
The sFlow source IP address (also known as the agent IP address) is placed in the sFlow datagrams that the switch sends
- Written by Michael (Mike) Fink
- Posted on August 25, 2019
- Updated on August 25, 2019
- 6970 Views
Packets sampled for sFlow are packaged in a flow sample structure containing, amongst other things, input and output
- Written by Michael (Mike) Fink
- Posted on November 11, 2019
- Updated on November 11, 2019
- 8418 Views
Packets sampled for sFlow are packaged in a flow sample structure containing, amongst other things, input and output
- Written by Adrian Fettes
- Posted on April 10, 2024
- Updated on April 10, 2024
- 2466 Views
sFlow is a technology for monitoring traffic in data networks containing switches and routers. This document details supported platforms for the sFlow Version 5 specification, as well as which platforms are supported for various flow_data and sample_data types.
- Written by Gokul Unnikrishnan
- Posted on June 27, 2024
- Updated on June 27, 2024
- 1396 Views
The sFlow VPLS extension adds support for providing VPLS-related information to sFlow packet samples, for VPLS forwarded traffic. Specifically, for customer traffic ingressing on a CE-facing PE interface in a VPLS deployment that uses statically configured LDP pseudowires, information such as the name of the VPLS instance and the ID of the pseudowire that the packet will egress over will be included in the sFlow datagram.
- Written by Gokul Unnikrishnan
- Posted on May 7, 2024
- Updated on May 7, 2024
- 1753 Views
The sFlow VPLS extension adds support for providing VPLS-related information to sFlow packet samples, for VPLS forwarded traffic. Specifically, for customer traffic ingressing on a CE-facing PE interface in a VPLS deployment that uses statically configured LDP pseudowires, information such as the name of the VPLS instance and the ID of the pseudowire that the packet will egress over will be included in the sFlow datagram.
- Written by Ruoyi Wang
- Posted on October 18, 2024
- Updated on October 18, 2024
- 246 Views
The sFlow VXLAN extension adds support for providing VXLAN-related information to sFlow packet samples, for VXLAN forwarded traffic. Specifically, for customer traffic ingressing on a CE-facing PE interface and forwarded into a VXLAN tunnel, the IP address of the source VTEP, the IP address of the destination VTEP and the VNI will be included in the sFlow datagram.
- Written by Joanna Shao
- Posted on September 24, 2024
- Updated on September 25, 2024
- 392 Views
This feature adds support for configurable max sFlow datagram size. The current default max datagram size is 1400 bytes, which can cause some sFlow datagrams to be dropped when there is an MTU set. This feature enables the configuration of the max datagram payload size within the range of 200 to 1500 bytes to help avoid fragmentation. Note that this feature only configures software sFlow and is not supported on hardware-accelerated sFlow.
- Written by David Jowett
- Posted on January 3, 2023
- Updated on January 11, 2023
- 5534 Views
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.
- Written by Aurora Desmarais
- Posted on June 29, 2023
- Updated on June 30, 2023
- 5000 Views
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.
- Written by Gokul Unnikrishnan
- Posted on June 29, 2023
- Updated on July 3, 2023
- 4230 Views
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.
- Written by Gokul Unnikrishnan
- Posted on June 29, 2023
- Updated on July 3, 2023
- 3885 Views
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.
- Written by Sushil Yadav
- Posted on March 17, 2021
- Updated on March 17, 2021
- 6570 Views
By default, sFlow samples that are generated have a fixed size: 128 bytes. This feature adds support for a
- Written by Charlotte Fedderly
- Posted on August 25, 2020
- Updated on February 21, 2024
- 9253 Views
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.
- Written by David Graham
- Posted on June 12, 2024
- Updated on June 13, 2024
- 1470 Views
This feature allows Octa to act as a collector for IPFIX and sFlow datagrams and to aggregate and stream the collected data in response to a gNMI subscription. Octa is a process in EOS which combines OpenConfig and certain TerminAttr functionality, primarily with the intent of servicing gNMI requests for OpenConfig paths and for "EOS native" paths.