- Written by Alton Lo
- Posted on November 6, 2023
- Updated on November 20, 2023
- 300 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
- 845 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
- 1756 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
- 4931 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
- 4857 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 March 18, 2020
- 11707 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
- 5219 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
- 8720 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
- 6396 Views
EVPN IRB interface supports both L2 switching and L3 Vxlan Routing on the same TOR switch. In a typical EVPN IRB