MPLS Traffic Engineering Part 3

11 September 2018 | Comments Off on MPLS Traffic Engineering Part 3

History of Networking: Ross Callon on MPLS

21 August 2018 | Comments Off on History of Networking: Ross Callon on MPLS

The Protocol Series: MPLS Part 2

2 July 2018 | Comments Off on The Protocol Series: MPLS Part 2

In this community roundtable over at the Network Collective, Jordan, Eyvonne, Nick, and I discuss some interesting use cases for MPLS. This is part of our ongoing series about protocols. Remember to check out Network Collective memberships!

The Network Collective: MPLS Part 1

5 April 2018 | Comments Off on The Network Collective: MPLS Part 1

On the ‘net: BGP Traffic Engineering at the Network Collective

18 January 2018 | Comments Off on On the ‘net: BGP Traffic Engineering at the Network Collective

  Nick Russo and I stopped by the Network Collective last week to talk about BGP traffic engineering—and in the process I confused BGP deterministic MED and always compare MED. I’ve embedded the video below.

Reaction: The End of MPLS?

28 June 2017 | 4 Comments

Jason Wells, over on LinkedIn, has an article up about the end of MPLS; to wit— MPLS, according to Akkiraju, is old-hat and inefficient – why should a branch office backhaul to get their cloud data, when Internet connections might be faster – and 100X cheaper? Cisco, in acquiring Viptela, has brought Akkiraju, his company,…

DC Fabric Segment Routing Use Case (5)

7 September 2016 | Comments Off on DC Fabric Segment Routing Use Case (5)

In this, the last post on DC fabrics as a Segment Routing use case, I mostly want to tie up some final loose ends. I will probably return to SR in the future to discuss other ideas and technical details. Anycast Anyone who keeps up with LinkedIn knows anycast plays a major role in many…

DC Fabric Segment Routing Use Case (4)

22 August 2016 | 5 Comments

In the last post in this series, I discussed using SR labels to direct traffic from one flow onto, and from other flows off of, a particular path through a DC fabric. Throughout this series, though, I’ve been using node (or prefix) SIDs to direct the traffic. There is another kind of SID in SR…

DC Fabric Segment Routing Use Case (3)

10 August 2016 | Comments Off on DC Fabric Segment Routing Use Case (3)

In the second post in this series, we considered the use of IGP-Prefix segments to carry a flow along a specific path in a data center fabric. Specifically, we looked at pulling the green flow in this diagram— —along the path [A,F,G,D,E]. Let’s assume this single flow is an elephant flow that we’re trying to…

DC Fabric Segment Routing Use Case (2)

28 July 2016 | 6 Comments

In the first post we covered a bit of the basics around segment routing in the data center. Let’s return to the first use case to see if we can figure out how we’d actually implement the type of traffic steering needed to segregate mouse and elephant flows. Let’s return to our fabric and traffic…