Monthly Archives: February 2012

OSPF Database on Junos: NSSA External (Type 7) LSA

In this article, I will take a look into OSPF database on Junos and see what kind of information I can dig out for NSSA External LSAs, which are crucial for the propagation of external (exported) routes in OSPF NSSA areas. In this article, I get to have a little bit fun at Juniper’s expense… or mine? Read more »

Junos Approach to BGP Cluster-ID and Originator-ID

Couple of days ago I wrote an article for IPexpert’s CCIE blog about BGP Cluster-ID and Originator-ID. When I did that, I got curious whether Junos is handling things any differently. Working assumptions is not, but I wanted to prove it and in the process practice my Junos-fu. Read more »

OSPF Database on Junos: External (Type 5) and ASBR Summary (Type 4) LSA

In this article, I will take a look into OSPF database on Junos and see what kind of information I can dig out for External and ASBR Summary LSAs, which are crucial for the propagation of external (exported) routes in OSPF. Read more »

OSPF Database on Junos: Network Summary (Type 3) LSA

In this article, I will take a look into OSPF database on Junos and see what kind of information I can dig out for Network Summary LSAs, which are crucial for inter-area (multiple area) OSPF operations. Read more »

OSPF Database on Junos: Router (Type 1) and Network (Type 2) LSA

In this article, I will take a look into OSPF database on Junos and see what kind of information I can dig out for Router and Network LSAs, which are crucial for intra-area (single area) OSPF operations. Read more »

The Junosphere Experience, Part Three – Topology Files

In the previous article, I briefly mentioned that Junosphere users can load their own topology files. In this article, I will explain some basics of these files. Read more »

The Junosphere Experience, Part Two – Using Junosphere

In the previous article, I described the steps I went through to get access to Junosphere. It wasn’t smooth, but it worked. In this post, I’ll take a look at the actual experience of using Junosphere. Read more »

The Junosphere Experience, Part One – Getting Access

Late last year, Juniper Networks announced a phenomenal service called Junosphere. It’s, essentially, a cloud-based platform for device and network emulation. For those familiar with Dynamips/GNS3, Junosphere is very similar only hosted by Juniper and fully supported by JTAC. This article describes my experience with Junosphere. Read more »

Series Announcement: OSPF Database on Junos

Since I started my journey into Junos studies recently, I am curios to translate my IOS skills into the new environment. One of my strong networking areas is a fairly deep understanding of OSPF and its implementation in IOS. In the next few articles, I will try to explore the same aspects in Junos. Read more »