During the JNCIE-SP preparation session we had a few weeks ago, I mentioned that if someone had any suggestions about topics for my blog, I would be happy to consider them. Someone answered: rib-groups! And I thought: "oh yeah, that’s...
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JNCIE, JNCIP, SERVICE PROVIDER
BGP ADD-PATH
The Add Path feature is described in RFC7911 - Advertisement of Multiple Paths in BGP, which defines a new BGP extension that allows a router (e.g. A route reflector) to advertise multiple paths (routes) for the same prefix. This extension...
CERTIFICATIONS
CCNP/CCDP, and beyond – An update, and a second update.
I initially wrote this about a year ago. Updates at the end! Many of you know that I started my career many years ago, working for a Cisco Partner and Cisco Training Partner back in my country Venezuela, and soon...
MOM ENGINEER!
ARE THOSE ROUTERS OR NOT?
One of my favorite stories about my boys when they were still little and cute is this: Back in 2006-2007, I was teaching IPv6 classes almost every week. Cisco IPv6 classes that is. I had become some sort of expert...
MOM ENGINEER!
THE WEGMANS TRAIN IS IN OUR HOUSE – Mar, 2007
When my boys were little, they had an out of this world obsession with trains!!!! They watched train videos, had train toys, train books, train coloring books, .... and Thomas the Tank Engine was the most important character on ALL...
JNCIA, JNCIE, JNCIP, JNCIS
MANUALLY CONFIGURED ROUTES – STATIC, AGGREGATE, & GENERATED
When you are trying to set up a route manually for a particular purpose, you are faced with these 3 different options in Junos: STATICGENERATED (summary route)AGGREGATE (summary route) And probably you have asked yourself: What are the differences? Which...
JNCIE, JNCIP, SERVICE PROVIDER
RSVP reservation styles.
To create a dynamic LSP (Label Switched Path) using RSVP (Resource Reservation Protocols) in JunOS, you define a name that uniquely identifies the LSP and, at minimum, you specify the address of the egress router. EXAMPLE: set label-switched-path R1=>R4 to...
JNCIE, JNCIP, SERVICE PROVIDER
MPLS vs. VXLAN encapsulation
At a high level: MPLS was designed to speed up processing of packets. Forwarding is based on the label in the MPLS header. In Juniper, the label information is kept in the mpls.0 table. Labels are advertised using either RSVP...
JNCIE, JNCIP, SERVICE PROVIDER
LDP vs. RSVP
RSVP - Resource Reservation Protocol LDP - Label Distribution Protocol Standard?RFC3209RFC 5036What configuration steps are required?You need to enable RSVP and MPLS on the interfaces, create the LSP(s) under protocols MPLS, and depending on LSP configuration an IGP might also...
SERVICE PROVIDER
The first Post – Link Protection Vs. Fast Reroute.
Humm, this is going to be my first post, and I am trying to figure out where to start. Mostly because I want to just do something quick, and go live!!! I am excited! This is long overdue! So, here...
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