MPLS VPN Configuration example with IS-IS based Segment Routing (SPRING) on Juniper QFX5100 devices. The purpose of this lab is to demonstrate what LDP or RSVP-TE can be easily replaced with SR.
Complete Configuration Repository on GitHub:
https://github.com/bgphelp/blueprints/tree/master/SR/MPLS-VPN-SR-QFX5100
Configuration examples of VLAN-Based EVPN service using MPLS Dataplane Encapsulation in Segment Routing-Enabled Juniper Network.
Complete Configuration Repository on GitHub:
https://github.com/bgphelp/blueprints/tree/master/evpn/vlan-based-mx
Continue reading “EVPN MPLS VLAN-Based Configuration”
Cisco and Juniper Segment Routing Interoperability design with configuration examples. IS-IS based IGP topology.
Complete configuration repository on GitHub: https://github.com/bgphelp/blueprints/tree/master/1-SR-Cisco-Juniper
Continue reading “Segment Routing Cisco – Juniper Interop Design”
Step-by-step migration from LDP-based design to Segment Routing topology in Juniper environment. In this example, we will be using IS-IS as IGP protocol.
Continue reading “LDP to Segment Routing (also known as SR and SPRING) Migration Steps”
Discussion on how to migrate to BGP-Free Core by deploying MPLS as network tunneling mechanism. Document provides step-by-step migration steps for a Juniper-based network.
Continue reading “Migrating to BGP-Free Core in Juniper Environment”
I’m building a new ISP network, what routing protocol should I use?
Discussing BGP and comparing IGP Protocols (IS-IS vs OSPF).
Continue reading “What Routing Protocol Should I Use?”
Configuring Dual-CE BGP High Availability Site. This article provides Juniper Configuration Example that uses BGP AS-Prepend to identify primary and secondary paths.
Continue reading “Juniper High Availability Customer Site using AS-Prepend”
One of the common questions asked by people who begin their BGP journey is related to BGP ‘Next-Hop Self’ configuration option. What does it do? Should I use it on my network? What will happen if I forget to configure it? Today we’ll try to answer these questions.
Continue reading “BGP Next-Hop Self Explained”
This article demonstrates how to upgrade large-scale Juniper lab infrastructure using Ansible HEAT templates. The same process can also be considered for production deployments.
Continue reading “Upgrading Juniper Lab Infrastructure using Ansible”
Brief introduction into Public BGP Looking Glass servers and how to use them to troubleshoot real-life issues.
One of the most common tasks performed by BGP administrator is troubleshooting of prefix propagation over the Internet. You might have originated a prefix advertisement from within your Autonomous System, but was this prefix accepted by your Upstream Peers? If it was, did your Transit peers propagate this information to the global Internet, or did the prefix get lost or summarized somewhere within their networks because you might set a wrong community? Is it possible that your prefix has been hijacked by somebody else?
Public Looks Glass (LG) and Router-Servers (RS) allow you to get an answer to these questions in a matter of seconds.
Continue reading “BGP Looking Glass”
