Troubleshooting Basic BGP Path Issues

0
In everything I've been working on lately, a lot of it has revolved around BGP. Most of this has come from my CCIE studies. In practice labs and scenarios something I've become accustomed to...
next-hop-self topology

When to Use BGP Next-Hop-Self

0
When beginning their CCIE studies, some people, including myself, wonder exactly when the next-hop-self option of BGP should be used. For this example we will use the topology above. Routers 1 and 2 have...

Guide to DHCP Snooping

0
DHCP snooping is a security feature that you will surely run into in while studying for your Cisco exams or while working in an enterprise environment perhaps. It first off helps ensure that you...

EIGRP and AF-Interface

0
Within the realm of EIGRP, there are two different modes, classic and named. Classic is the usual version most people are used to where the protocol configuration starts with "router eigrp 123" or something...

DMVPN in a VRF Environment

2
In the lab, I have been introducing vrf environments into everything that I do. MPLS was the tip of the iceberg and then from there, I started tonight going over DMVPN in a vrf...

Two Methods of MPLS Interface Configuration within OSPF

0
Within all of the practice labs I have worked through for the CCIE Lab exam and in most real world applications I have seen, MPLS networks are run on top of (or within) an...

BGP Best Path Selection: Origin

0
For the last few days I have been studying for my CCIE R&S lab and have been doing every practice lab I can get my hands on. The one thing they all seem to...