Yet Another Blog About Segment Routing, Part2 : TI-LFA

TI-LFA Fig.7

So I finally got some time after a while to write something. In this post we will be looking at Topology Independent LFA aka … [Read more...]

HTIRW: That Big Number Database in the Sky

As we come close to ending this rather long running series on how the Internet really works (because I'm certain you're about … [Read more...]

NFV and OPNFV: Getting Down to Business at ONS 2015

ONS2015_NFV-OPNFV_Coverage_v2_pages

This post is shared by the Open Networking Summit. The Packet Pushers thank the ONS for being a sponsor. SDN principles … [Read more...]

BGP AIGP

BGP AIGP Fig.4

In this post we will look at something which is relatively new but not as cool as my previous post on Segment Routing. We … [Read more...]

Yet another blog about Segment Routing-Part 1

Segment Routing Fig.9

In this blog post we will be taking a deeper look at Node/Prefix SID and SR/LDP Interworking. If you work or have an interest … [Read more...]

BGP RR Design – Part 2

BGP RR Fig.10

This is a continuation from Part 1 9. ACME VPN RR's Design: So the current total number of PE's dedicated for VPN … [Read more...]

BGP RR Design – Part 1

BGP RR Fig.12

1. Introduction In this post we will be looking at large scale RR design by using a fictional ISP ACME  as a reference. As … [Read more...]

IP FRR and Micro-loops Part 2

IP FRR Fig.20

This is a continuation from Part 1 Remote LFA At this point we already know that simple LFA doesn't always provide full … [Read more...]

IP FRR and Micro-loops Part 1

IP FRR Fig.24

Introduction In this post we will take a look at IP FRR and Micro-loops. If the reader already doesn't have some kind of … [Read more...]

MPLS TE Design -Part 3

MPLS-TE-Fig.23

This is a continuation from Part 2 Fast Reroute Why Fast Reroute? Many NSP’s like ACME have traffic with tight SLAs. For … [Read more...]

MPLS TE Design -Part 2

MPLS-TE-Fig.15

This is a continuation from Part 1 Case for LDPoRSVP As we mentioned at the very beginning that ACME provides L3VPN and … [Read more...]

MPLS TE Design -Part 1

MPLS-TE-Fig.6

In this post we will be exploring different aspects of Traffic Engineering (RSVP-TE) from a design perspective using … [Read more...]

Policy-based Tunnel Selection (PBTS) on Cisco IOS-XR

pbts

Recently, I had to look after PBTS on Cisco ASR9K platform and faced some issues, here are some results about my tests. PBTS … [Read more...]

HTIRW: Standards Bodies

(yes, I know, it's been a while... But it's time to get back to this series) Up to this point in this series, we've been … [Read more...]

NG mVPN-Control Plane Overview

mVPNFig.1

In this post we will be exploring the shortcomings of MVPN (Draft Rosen/RFC 6037), with a focus on how NG-MVPN technologies … [Read more...]