- Written by Saurav Arora
- Posted on July 15, 2025
- Updated on July 15, 2025
- 118 Views
Destination based RTBH (remote triggered blackholing) is used on edge devices in a network to prevent DOS attack on a target network (IP/prefix) by blackholing/dropping the traffic destined towards this target. One of the ways to achieve this is through a trigger router sending a routing update for the prefix under attack to the edge routers configured for black hole filtering. The next-hop of such routing updates ends up getting resolved to a null/drop interface on the edge device, which results in blackholing all traffic destined towards this target network.
- Written by Saurav Arora
- Posted on June 20, 2022
- Updated on June 28, 2022
- 8681 Views
The “maximum-paths <m>” (default m=1) configuration that controls BGP’s multipath behavior, is available as a global knob, and not as a peer/peer-group knob today in EOS. When “maximum-paths” CLI is configured with m > 1, BGP starts forming ECMP groups for paths with similar attributes received from all configured neighbors.
- Written by Saurav Arora
- Posted on January 7, 2022
- Updated on January 7, 2022
- 9206 Views
Traffic steering enables traffic for a specified set of prefixes to get forwarded along traffic engineered paths
- Written by Saurav Arora
- Posted on November 13, 2019
- Updated on February 5, 2022
- 8357 Views
Term multipath relax in the context of BGP bestpath selection process means that the “AS path” contents of BGP
- Written by Saurav Arora
- Posted on January 18, 2019
- Updated on September 3, 2020
- 10062 Views
Neighbor default originate feature is used to advertise a default route to the neighbor (peer or peer group) even when