- Written by Alton Lo
- Posted on May 14, 2024
- Updated on May 15, 2024
- 1984 Views
This new feature explains the use of the BGP Domain PATH (D-PATH) attribute that can be used to identify the EVPN domain(s) through which the EVPN MAC-IP routes have passed. EOS DCI Gateway provides new mechanisms for users to specify the EVPN Domain Identifier for its local and remote domains. DCI Gateways sharing the same redundancy group should share the same local domain identifier and same remote domain identifier.
- Written by Alton Lo
- Posted on February 22, 2024
- Updated on February 26, 2024
- 2070 Views
With a static configured import and export route-target for a given vlan-aware-bundle, all its VLAN members share the same route-target value. For example, EVPN uses the same route-target in the Type2 EVPN route advertisements for hosts residing in two different VLAN of the same bundle.
- Written by Alton Lo
- Posted on November 6, 2023
- Updated on November 20, 2023
- 3985 Views
RFC7432 defines the MAC/IP advertisement NLRI (route type 2) for exchanging EVPN overlay end-hosts MAC addresses reachability information. When an EVPN MAC/IP route contains more than one path to the same L2 destination, the EVPN MAC/IP best-path selection algorithm determines which of these paths should be considered as the best path to that L2 destination.
- Written by Alton Lo
- Posted on September 26, 2023
- Updated on September 26, 2023
- 4110 Views
EVPN route advertisements carry RD and RT. RD (Route Distinguisher) : prepend to the tenant’s IP Prefix or MAC address to make it globally unique. RT (Route Target) : a BGP extended community used to tag the EVPN route. The EVPN import policy is chosen to select what is the target tenant VRF is imported from the global EVPN table.
- Written by Alton Lo
- Posted on June 29, 2023
- Updated on June 30, 2023
- 5630 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 Alton Lo
- Posted on November 23, 2020
- Updated on November 23, 2020
- 8716 Views
To use IPv6 addresses for VXLAN underlay, there are two different approaches. The first approach is to make use of
- Written by Alton Lo
- Posted on April 27, 2020
- Updated on July 14, 2023
- 8034 Views
As described in the L3 EVPN VXLAN Configuration Guide, it is common practice to use Layer 3 EVPN to provide multi
- Written by Alton Lo
- Posted on March 18, 2020
- Updated on April 4, 2024
- 17217 Views
In the Centralized Anycast Gateway configuration, the Spines are configured with EVPN IRB and are used as the IP
- Written by Alton Lo
- Posted on June 14, 2019
- Updated on October 7, 2019
- 8778 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 Alton Lo
- Posted on January 23, 2019
- Updated on January 23, 2019
- 14436 Views
“MLAG Domain Shared Router MAC” is a new mechanism to introduce a new router MAC to be used for MLAG TOR
- Written by Alton Lo
- Posted on July 13, 2018
- Updated on February 7, 2022
- 10178 Views
EVPN IRB interface supports both L2 switching and L3 Vxlan Routing on the same TOR switch. In a typical EVPN IRB