- Written by Hyun Chul Chung
- Posted on June 10, 2020
- Updated on October 14, 2021
- 4311 Views
As of EOS 4.22.0F, EVPN all active multihoming is supported as a standardized redundancy solution. Redundancy
- Written by Pintu Kumar
- Posted on June 17, 2019
- Updated on June 19, 2019
- 6254 Views
This feature extends the BGP Layer 3 VPN Import/Export and VRF Route Leaking functionality to “default” VRF.
- Written by Alton Lo
- Posted on November 23, 2020
- Updated on November 23, 2020
- 4230 Views
To use IPv6 addresses for VXLAN underlay, there are two different approaches. The first approach is to make use of
- Written by Denis Evoy
- Posted on August 20, 2020
- Updated on August 20, 2020
- 5460 Views
In a Service Provider network, a Provider Edge (PE) device learns VPN paths from remote PEs and uses the Route Target
- Written by Madhu Sudan
- Posted on April 26, 2021
- Updated on April 26, 2021
- 3997 Views
This feature allows a Data Center (DC) operator to incrementally migrate their VXLAN network from IPv4 to IPv6
- Written by Amit Ranpise
- Posted on November 11, 2019
- Updated on June 6, 2022
- 6095 Views
As described in the Multi VTEP MLAG TOI, singly connected hosts can lead to suboptimal peer link utilisation. By
- Written by Alton Lo
- Posted on March 18, 2020
- Updated on March 18, 2020
- 10722 Views
In the Centralized Anycast Gateway configuration, the Spines are configured with EVPN IRB and are used as the IP
- Written by Kallol Mandal
- Posted on June 21, 2021
- Updated on October 26, 2021
- 7994 Views
In the Centralized Anycast Gateway configuration, the Spines are configured with EVPN IRB and are used as the IP
- Written by Arup Raton Roy
- Posted on August 24, 2020
- Updated on December 27, 2021
- 4105 Views
This feature enables support for Macro Segmentation Service (MSS) to insert security devices into the traffic path
- Written by Mason Rumuly
- Posted on March 3, 2023
- Updated on March 6, 2023
- 1705 Views
Multihoming in EVPN allows a single customer edge (CE) to connect to multiple provider edges (PE or tunnel endpoint). In any multihoming EVPN instance (EVI), for each ethernet segment a designated forwarder is elected using EVPN type 4 Ethernet Segment (ES) routes sent through BGP. In single-active mode, the designated forwarder (DF) is responsible for sending and receiving all traffic. In all-active mode, the DF is only used to determine whether broadcast, unknown
- Written by Aaron Bamberger
- Posted on April 23, 2020
- Updated on August 26, 2022
- 4188 Views
E-Tree is an L2 EVPN service (defined in RFC8317) in which each attachment circuit (AC) is assigned a role of Root or Leaf.
- Written by Lavanya Conjeevaram
- Posted on March 31, 2017
- Updated on January 11, 2022
- 6662 Views
Ethernet VPN (EVPN) is an extension of the BGP protocol introducing a new address family: L2VPN (address family
- Written by Jeffrey Nelson
- Posted on March 5, 2020
- Updated on July 31, 2023
- 5709 Views
This feature adds control plane support for inter subnet forwarding between EVPN and IPVPN networks. It also
- Written by Jeffrey Nelson
- Posted on October 28, 2020
- Updated on August 11, 2023
- 9746 Views
This feature adds control plane support for inter subnet forwarding between EVPN networks. This support is achieved
- Written by May Young
- Posted on June 24, 2021
- Updated on June 24, 2021
- 4726 Views
This feature is available when configuring Layer2 EVPN or EVPN IRB. As described in RFC7432 section 15
- Written by Alton Lo
- Posted on January 23, 2019
- Updated on January 23, 2019
- 7239 Views
“MLAG Domain Shared Router MAC” is a new mechanism to introduce a new router MAC to be used for MLAG TOR
- Written by Wade Carpenter
- Posted on April 24, 2020
- Updated on January 27, 2023
- 7969 Views
EVPN MPLS VPWS (RFC 8214) provides the ability to forward customer traffic to / from a given attachment circuit (AC)
- Written by Alton Lo
- Posted on June 29, 2023
- Updated on June 30, 2023
- 719 Views
EVPN Multihoming defines a mechanism for Multihoming PEs to quickly signal, to remote PEs, a failure in an Ethernet Segment (ES) connectivity with the use of Ethernet A-D per ES route
- Written by Chris Hydon
- Posted on April 20, 2021
- Updated on January 4, 2023
- 5208 Views
Multihoming in EVPN allows a single customer edge (CE) to connect to multiple provider edges (PE or tunnel endpoint).
- Written by Chris Hydon
- Posted on October 20, 2022
- Updated on April 13, 2023
- 2476 Views
In EVPN, an overlay index is a field in type-5 IP Prefix routes that indicates that they should resolve indirectly rather than using resolution information contained in the type-5 route itself. Depending on the type of overlay index, this resolution information may come from type-1 auto discovery or type-2 MAC+IP routes. For this feature the gateway IP address field of the type-5 NLRI is used as the overlay index, which matches the target IPv4 / IPv6 address in the type-2 NLRI.
- Written by Alton Lo
- Posted on April 27, 2020
- Updated on July 14, 2023
- 4126 Views
As described in the L3 EVPN VXLAN Configuration Guide, it is common practice to use Layer 3 EVPN to provide multi
- Written by Christoph Schwarz
- Posted on August 23, 2022
- Updated on October 21, 2022
- 2767 Views
Flexible cross-connect service is an extension of EVPN MPLS Virtual Private Wire Service (VPWS) (RFC 8214). It allows for multiplexing multiple attachment circuits across different Ethernet Segments and physical interfaces into a single EVPN VPWS service tunnel while still providing single-active and all-active multi-homing.
- Written by Xuan Qi
- Posted on March 13, 2020
- Updated on March 13, 2020
- 6336 Views
In EOS 4.22.0F, EVPN VXLAN all active multi homing L2 support is available. A customer edge (CE) device can connect to
- Written by Chris Hydon
- Posted on June 17, 2019
- Updated on July 12, 2023
- 12785 Views
Ethernet VPN (EVPN) networks normally require some measure of redundancy to reduce or eliminate the impact of outages and maintenance. RFC7432 describes four types of route to be exchanged through EVPN, with a built-in multihoming mechanism for redundancy. Prior to EOS 4.22.0F, MLAG was available as a redundancy option for EVPN with VXLAN, but not multihoming. EVPN multihoming is a multi-vendor standards-based redundancy solution that does not require a dedicated peer link and allows for more flexible configurations than MLAG, supporting peering on a per interface level rather than a per device level. It also supports a mass withdrawal mechanism to minimize traffic loss when a link goes down.
- Written by Mitchell Jameson
- Posted on February 5, 2020
- Updated on February 5, 2020
- 3455 Views
This feature enables support for an EVPN VxLAN control plane in conjunction with Arista’s OpenStack ML2 plugin for
- Written by Aadil
- Posted on December 20, 2019
- Updated on December 20, 2019
- 4983 Views
Starting with EOS release 4.22.0F, the EVPN VXLAN L3 Gateway using EVPN IRB supports routing traffic from one IPV6
- Written by Alton Lo
- Posted on June 14, 2019
- Updated on October 7, 2019
- 4323 Views
Starting with EOS release 4.22.0F, the EVPN VXLAN L3 Gateway using EVPN IRB supports routing traffic from IPV6 host to
- Written by Kallol Mandal
- Posted on November 14, 2019
- Updated on December 22, 2020
- 5203 Views
Starting with EOS release 4.22.0F, the EVPN VXLAN L3 Gateway using EVPN IRB supports routing traffic from one IPV6
- Written by Aaron Bamberger
- Posted on October 28, 2020
- Updated on October 28, 2020
- 4262 Views
In a traditional EVPN VXLAN centralized anycast gateway deployment, multiple L3 VTEPs serve the role of the
- Written by Mitchell Jameson
- Posted on August 24, 2020
- Updated on February 5, 2022
- 3544 Views
Typical Wi Fi networks utilize a single, central Wireless LAN Controller (WLC) to act as a gateway between the
- Written by Shamit Kapadia
- Posted on February 23, 2021
- Updated on February 5, 2022
- 3016 Views
In EVPN deployment with VXLAN underlay when an EVPN type 5 prefix is imported into an IP VRF, the IGP cost of the underlay
- Written by Bharathram Pattabhiraman
- Posted on August 31, 2023
- Updated on September 4, 2023
- 427 Views
This solution allows delivery of IPv6 multicast traffic in an IP-VRF using an IPv4 multicast in the underlay network. The protocol used to build multicast trees in the underlay network is PIM Sparse Mode.
- Written by Madhu Sudan
- Posted on June 21, 2020
- Updated on July 3, 2023
- 4618 Views
Several customers have expressed interest in using IPv6 addresses for VXLAN underlay in their Data Centers (DC). Prior to 4.24.1F, EOS only supported IPv4 addresses for VXLAN underlay, i.e., VTEPs were reachable via IPv4 addresses only.
- Written by Adam Morrison
- Posted on January 3, 2022
- Updated on January 3, 2022
- 3115 Views
As of EOS 4.22.0F, EVPN all active multihoming is supported as a standardized redundancy solution. For effective
- Written by Bharathram Pattabhiraman
- Posted on February 11, 2021
- Updated on June 15, 2022
- 7404 Views
This solution allows the delivery of customer BUM (Broadcast, Unknown unicast and Multicast) traffic in a VLAN using
- Written by Bharathram Pattabhiraman
- Posted on August 31, 2023
- Updated on September 4, 2023
- 387 Views
This solution optimizes the delivery of multicast to a VLAN over an Ethernet VPN (EVPN) network. Without this solution IPv6 multicast traffic in a VLAN is flooded to all Provider Edge(PE) devices which contain the VLAN.
- Written by Jeffrey Nelson
- Posted on June 21, 2021
- Updated on February 2, 2023
- 22815 Views
This feature provides the ability to interconnect EVPN VXLAN domains. Domains may or may not be within the same data
- Written by Xuan Qi
- Posted on August 23, 2022
- Updated on October 14, 2022
- 3571 Views
This feature extends the multi-domain EVPN VXLAN feature introduced to support interconnect with EVPN MPLS networks. The following diagram shows a multi-domain deployment with EVPN VXLAN in the data center and EVPN MPLS in the WAN. Note that this is the only supported deployment model, and that an EVPN MPLS network cannot peer with an EVPN MPLS network.
- Written by Swati Patel
- Posted on February 11, 2021
- Updated on November 10, 2021
- 5824 Views
[L2 EVPN] and [Multicast EVPN IRB] solutions allow for the delivery of customer BUM (Broadcast, Unknown unicast
- Written by Bharathram Pattabhiraman
- Posted on February 11, 2021
- Updated on September 21, 2023
- 10822 Views
This solution allows delivery of multicast traffic in an IP VRF using multicast in the underlay network. It builds on
- Written by Swati Patel
- Posted on January 3, 2023
- Updated on July 12, 2023
- 2500 Views
Multicast EVPN IRB solution allows for the delivery of customer BUM (Broadcast, Unknown unicast and Multicast) traffic in L3VPNs using multicast in the underlay network. This document contains only partial information that is new or different for the Multicast EVPN Multiple Underlay Groups solution.
- Written by Swati Patel
- Posted on October 27, 2021
- Updated on June 22, 2022
- 7281 Views
[L2 EVPN] and [Multicast EVPN IRB] solutions allow for the delivery of customer BUM (Broadcast, Unknown unicast and Multicast) traffic in a L2VPN and L3VPNs respectively using multicast in the underlay network.
- Written by Sandeep Betha
- Posted on January 31, 2022
- Updated on September 15, 2023
- 4404 Views
PIM External Gateways (PEGs) allow an EVPN overlay multicast network to interface with an external PIM domain. They can be used to interconnect two data centers using an external PIM domain in between them.
- Written by Rohit Maurya
- Posted on June 21, 2021
- Updated on July 13, 2022
- 6164 Views
Private VLAN is a feature that segregates a regular VLAN broadcast domain while maintaining all ports in the same IP
- Written by Jeevan Kamisetty
- Posted on December 22, 2020
- Updated on December 22, 2020
- 5257 Views
Arista MLAG supports STP for Layer 2 loop detection. In fact, most customers enable STP in their MLAG(s) to ensure no
- Written by Daniel Guerin
- Posted on October 20, 2022
- Updated on November 3, 2022
- 1712 Views
Spanning Tree Protocol requires each interface to have a unique port number ranging from 1 through 4095. Arista STP typically assigns port numbers to port-channel interfaces in the order in which they are configured.
- Written by Matthew Carrington-Fair
- Posted on February 22, 2021
- Updated on May 6, 2021
- 3537 Views
Prior to 4.25.2F, support for BGP PIC was restricted to locally identifiable failures such as link failures. If a
- Written by Jialong Chen
- Posted on December 17, 2021
- Updated on October 13, 2022
- 4195 Views
This feature expands Multi Domain EVPN VXLAN to support an Anycast Gateway model as the mechanism for gateway
- Written by Hyun Chul Chung
- Posted on December 23, 2019
- Updated on December 23, 2019
- 3583 Views
This feature enables support for migrating from only using VCS as the control plane to only using EVPN as a control
- Written by Aaron Bamberger
- Posted on November 12, 2019
- Updated on November 12, 2019
- 3157 Views
In EVPN, when configuring the member VLANs for a VLAN aware bundle, the existing configuration command only allows