- Written by Pauric Ward
- Posted on August 23, 2022
- Updated on September 12, 2022
- 5492 Views
Stale routes are learned routes from adjacent BGP neighbors whose neighborship has been interrupted by session instability. This feature adds a mechanism to specify a stale policy route-map for which the stale routes from a gracefully restarting, or depending on the configuration of the feature, a non-gracefully restarting BGP peer will be processed.
- Written by Paraic Gallagher
- Posted on October 28, 2020
- Updated on October 28, 2020
- 6573 Views
This feature adds a configuration option which provides a CLI error if a reference is made to an unconfigured policy
- Written by Ajay Kini
- Posted on August 31, 2023
- Updated on September 8, 2023
- 4176 Views
BGP VPN routes today advertise a label by dynamically allocating it from a dynamic label range block without providing the user any control over the label value that is allocated per VRF’s address Family - VPNv4 or VPNv6. This feature allows the user to configure a unique label per VRF’s configured address-family, VPNv4 or VPNv6, thereby allowing the user granular control over the label value advertised with VPN routes exported from a VRF.
- Written by Promise Nnogharam
- Posted on April 16, 2024
- Updated on April 16, 2024
- 2592 Views
Routing control functions (RCF) is a new language, a different way of policy definition and application in a programmatic fashion (https://www.arista.com/en/support/toi/eos-4-27-2f/15102-routing-control-functions-language-and-configuration). EOS Application Programmable Interface (eAPI) is another means whereby commands are sent to the switch (i.e. aside from the switch’s command-line interface - CLI which has been the norm), which can be executed through various methods like web interface, shell or a program/script.
- Written by Pawel Kurdybacha
- Posted on February 16, 2021
- Updated on February 16, 2021
- 6992 Views
The feature allows assigning of class E addresses to interfaces by default with no option to turn that off and routing
- Written by Wenteng Ma
- Posted on June 29, 2023
- Updated on July 3, 2023
- 4579 Views
This feature allows configuring an IPv4 static route with IPv6 nexthop, both the interface and associated IPv6 address as nexthop router; the associated IPv6 address could be a linklocal address.
- Written by Porsche Endre
- Posted on June 5, 2023
- Updated on June 12, 2023
- 4264 Views
The feature allows the assignment of reserved IPv4 addresses from reserved ranges 240.0.0.0/4 and 0.0.0.0/8 to network interfaces. by default, with no option to turn that off.
- Written by Pauric Ward
- Posted on March 3, 2023
- Updated on May 30, 2024
- 4775 Views
This feature enables the user to configure a list or range of BGP attributes to be ignored by the router on receipt of a BGP update message. The BGP attributes are discarded from the BGP update message, and unless the action of discarding an attribute causes the update message to trigger error handling, then the update message is parsed as normal.
- Written by Azad Kumar
- Posted on January 3, 2023
- Updated on January 3, 2023
- 5167 Views
ISIS Leaked Route Summarization is a feature which summarizes all the L1 leaked routes in L2 routers. With the help of this L2 LSP size reduces (smaller no of routes in L2 LSP).
- Written by Kaladhar Musunuru
- Posted on May 4, 2020
- Updated on August 16, 2024
- 3822 Views
Ethernet VPN (EVPN) is an extension of the BGP protocol introducing a new address family: L2VPN (address family number 25) / EVPN (subsequent address family number 70). It is used to exchange overlay MAC and IP address reachability information between BGP peers using type-2 routes, but additionally, EVPN supports the exchange of layer 3 IPv4 and IPv6 overlay routes through the extensions described in (type 5 EVPN routes).
- Written by Bin Wang
- Posted on December 22, 2020
- Updated on December 22, 2020
- 7120 Views
For various peering applications, there is a need to support the assignment of a MAC address on routed interfaces.
- Written by Sharad Birmiwal
- Posted on April 18, 2024
- Updated on April 18, 2024
- 2976 Views
EOS supported two routing protocol implementations: multi-agent and ribd. The ribd routing protocol model is removed starting from the EOS-4.32.0F release. Multi-agent will be the only routing protocol model. Both models largely work the same way though there are subtle differences.
- Written by Ryan Halbrook
- Posted on June 28, 2021
- Updated on June 28, 2021
- 7958 Views
Multipath color is a new multicast multipath mode for controlling PIM RPF selection. In the default multipath
- Written by Lavanya Conjeevaram
- Posted on March 31, 2017
- Updated on April 3, 2017
- 6956 Views
Overlay IPv6 routing over VXLAN Tunnel is simply routing IPv6 packets in and out of VXLAN Tunnels, similar to
- Written by David Cronin
- Posted on March 3, 2022
- Updated on March 14, 2024
- 9090 Views
This document describes a new CLI command to help debug how and why policy permits and denies paths. The aim of this CLI command is for the user to debug a route map or RCF (Routing Control Functions) function by specifying as input a prefix for which BGP has reachability for, either via a BGP peer or a redistribute source.
- Written by Shyam Kota
- Posted on January 22, 2019
- Updated on January 22, 2019
- 6007 Views
RIB Route Control is a collection of mechanisms for controlling how IP routing table entries get used. Next hop
- Written by David Cronin
- Posted on March 3, 2022
- Updated on September 20, 2024
- 17500 Views
Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.
- Written by David Cronin
- Posted on March 3, 2022
- Updated on September 20, 2024
- 10906 Views
Routing Control Functions (RCF) is a language that can express route filtering and attribute modification logic in a powerful and programmatic fashion.The document covers: Configurations of a RCF function for BGP points of application
- Written by Shamit Kapadia
- Posted on May 3, 2022
- Updated on June 5, 2023
- 7873 Views
Routing Control Functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.
- Written by Roger Levesque
- Posted on January 3, 2023
- Updated on January 11, 2023
- 6354 Views
Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.
- Written by David Cronin
- Posted on March 4, 2022
- Updated on April 16, 2024
- 15858 Views
Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.
- Written by Shamit Kapadia
- Posted on May 3, 2022
- Updated on June 2, 2022
- 6936 Views
Routing Control Functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.
- Written by Neil Jarvis
- Posted on March 2, 2022
- Updated on June 7, 2023
- 8598 Views
A L2 sub-interface is a logical bridging endpoint associated with traffic on an interface distinguished by 802.1Q tags, where each <interface, 802.1Q tag> tuple is treated as a first-class bridging interface.
- Written by Manpreet
- Posted on June 29, 2023
- Updated on July 11, 2023
- 5340 Views
Default routing protocols model will be set to multi-agent in 4.30.1. Note that the default value is only used if a value is not specified in startup-config.
- Written by Harish Prabhu
- Posted on March 31, 2017
- Updated on April 3, 2017
- 6615 Views
In EOS 4.18.0F, VXLAN direct routing was introduced on the 7500R and 7280E/R series platforms. VXLAN routing