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When using PIM Sparse in NBMA environment like Frame Relay you need to make sure you enter the ip pim nbma command to disable the split horizon rule that traffic coming into the interface is not going out that same interface.

The IP pim nbma is working only for Sparse Mode Group

Candidate RP need to be able to communicate only with the mapping agent and the Routers in the Domain need to be able to communicate with the Mapping agent so from that we can understand that we need to watch our Route to the Mapping Agent.

Ok I think I will end it here for now, I hope this was good info.

Coming Up For Air - UPDATED 4/20/2008

Sat, 19 Apr 2008 20:11:48 +0000
I took yesterday off of work so that I could get a full-scale practice lab in before my mock today. I did IEWB vol.2 lab #6, and it went okay. Today, I did IE mock lab #5 (difficulty 8). I easily finished it within the time limit, which is a huge step ...]

ATA 186 auto registration

Mon, 10 Jul 2006 00:00:15 +0000
To disable auto registration for any of the port set Sid 0 or Sid1 to 0 or empty. This will disable the port and not attempt a registration with CM. If you want to manually add the port in CM, put Sid0 or Sid1 as the mac-address of the appropriate port.
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So what is your verdict on this composition on network simulator? Are there anymore unanswered questions about network simulator in your mind?
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Turning Switch into Hub

Tue, 05 Feb 2008 18:14:54 +0000
Within the scope of Metro Ethernet services, it is often beneficial to provide customers “point-to-point” VLAN service, where VLAN (multipoint service in essence) is effectively set up to emulate ethernet “pseudowire”, by disabling MAC-address learning. The benefit comes from saving metro switches CAM tables address space, thus improving overall scalability (which is far from perfect ...]


Catalyst QoS: IP Telephony Endpoints

Tue, 26 Feb 2008 21:53:45 +0000
Catalyst QoS configuration for IP Telephony endpoints is one of the CCIE Voice labs topics. Many people have issues with that one, because of need to memorize a lot of SRND recommendations to do it right. The good news is that during the lab exam you have full access to the QoS SRND documents and ...]


Digit manipulation - best practices

Wed, 19 Jul 2006 04:48:36 +0000
When doing digit manipulation, first decide whether you want to do it at route pattern level or route group level. Route group level is recommended for following reasons.
 a. The end user will see the manipulated digits if you do digit manipulation at the route-pattern level. If you do it at route group level, the end ...]

The BlogCatalog Retrospective

Fri, 25 Apr 2008 16:59:30 +0000
You know, its been over a year now since I began working on stuff for blogcatalog. I remember the day Tony bought it; I thought he might have been a little crazy. I mean, I at least read blogs and had a personal one or two of my own at the time but it was ...]

Cisco CCIE History

Wed, 30 Jan 2008 21:21:36 +0000
Being a CCIE myself, I just love CCIE History. I read a great article over at NetworkWorld submitted by Brad Reese.
Here are some cool things I learned from the story:

The CCIE was announced on September 27, 1993
Now the very successful CEO of Cisco Systems, John Chambers was insturmental in getting the CCIE certification launched. Back ...]

Khawar Butt’s Lab 1.1 topology on Dynamips

Tue, 22 Apr 2008 17:45:38 +0000
This image is purposely small, please purchase Khawar’s CCIE Security Workbook.




Please review my previous post on my lab setup to fully understand how everything physically fits together http://cciesecurity.wordpress.com/2006/12/21/my-home-lab/




Today I will look at Khawar’s first lab in the CCIE Security workbook and show you how I used Dynamips and real equipment to emulate this environment. It is ...]

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