SDN: Savior or Grifter?
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Grift’s like anything else, Roy. You don’t stand still. You either go up or
down. Usually down, sooner or later. Lilly Dillon from “The Grifters” At
Intero...
Checking your BGP MSS on Junos and IOS
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Oddly enough, neither platform shows you directly what your MSS between
your BGP speakers is. Quite annoying. To quickly check on Junos do this:
darren@pgr...
Network Engineering Stack Exchange Beta Live!
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A couple months ago, I announced a proposal to start a Stack Exchange site
dedicated to answering questions concerning network engineering, similar to
ho...
INE’s Cisco Live 2013 Party at the Hard Rock Cafe
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I would like to thank the over 600 people who RSVP’d for INE’s 2013 Party
at the Hard Rock Cafe in Orlando during Cisco Live. Registration is closed
as of ...
Tidbits of Info for CCIE Security & Data Center
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CCIE Data Center Candidates: Testimonial: I just wanted to thank you and
IPexpert’s team for developing such a thorough workbook for CCIE Data
Center lab p...
MPLS VPN Per VRF Label feature
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In this post i would like to explain the usage of the “MPLS VPN Per VRF
Label” feature. By default, in each VRF, prefixes are assigned a VPN label,
used to...
When Tech Meets Business
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"I have had the pleasure of having Himawan as part of my team for a total
of 3 years, first two years in the Carrier Ethernet practice as an NCE,
and lat...
Internets of Interest for 5th May 2013
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Collection of useful, relevant or just fun places on the Internets for
5th May 2013 and a bit commentary about what I’ve found interesting about
them: Sc...
Routing-Bits SP Handbook now available
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No matter how well planning is attended to; life is good at challenging
that. It’s a little late but here it is. I am very pleased to announce the
SP Hand...
RedNectar’s guide to programming user interfaces
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I recently made a flippant comment of the GNS3 forum: Rule #27: RedNectar’s
guide to programming user interfaces Never state an option in the negative.
whi...
OSPF external E1, E2, N1, N2…Who is the winner?
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This lab focuses on route selection mechanism of OSPF external routes. The
complexity of OSPF selection process is due to its inherent hierarchical
structu...
Change of site
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Hello, Due to financial reasons, I had to change the site. Sorry about
that. New address is: http://ccie24081.wordpress.com/ Please, update your
bookmarks....
Cisco ASA Packet Captures for Fun and Profit
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As many of you know my background isn’t in enterprise, but I currently fill
that role in my $job. In order to succeed I’ve had to develop many new
skills...
OSPF LSA5 Forwarding-Address Field (FA)
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The Forwarding-Address (FA) field and how it’s processed to make a routing
decision when dealing with type 5 LSA is something very interesting. In
this pos...
Cisco 1550 AP software image options
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While trying to order Cisco 1552 Outdoor AP's, there are 2 options for
SW-SWAP1500-BTIMGE-K9 is the unified code software.S155W7K9-15202JB is the
autonomou...
Upgrading IOS on a Cisco 6500 with a single SUP720
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Upgrading IOS on a Cisco 6500 isn’t necessarily as simple as loading an IOS
image and rebooting the switch. There are several other items that should
also...
Videos CCNA, CCNP, JNCIA y más en Español
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Los amigos del blog Initial Draft han emprendido un interesante desafío
de construir una plataforma de educación en temas de IT, p...
Looking up and ahead
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Well, I got my results late last night and unfortunately I failed. There
was two VPN related questions, a total of 11 points that would have put me
over th...
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Supervisor 2/2E and Admin VDC
In June of 2012 Cisco announced a new addition to the Nexus 7000 family,
the Supervisor 2 and Supervisor 2E. These new membe...
BGP Diverse-Path for a faster convergence
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The BGP implementation in Junos is event-driven while in IOS is timer based
and require that the scan process goes trough the BGP Table and select the
bes...
A BGP leak made in Canada
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A BGP leak made in Canada Today many network operators saw their BGP
session flap, RTT’s increase and CPU usage on routers spike. While looking
at our BGP...
Alternatives to VXLAN
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NVGRE
NVGRE (Network Virtualization Generic Routing Encapsulation) achieves the
same functional goal as VXLAN on the network, however the encapsulation of...
Concept on Extending the JUNOS Commit Command
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One of the favourite features about Junos when it comes to configuration
management is the ability to manage configuration on a methodical manner.
This is ...
Closing the Cisco Cert Zone (for Now)
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Hi folks. This short post is a notice to let everyone know that I'll not be
continuing to blog in the Cisco Cert Zone for the foreseeable future. For
those...
IPv6 survival guide for CCIE Wireless candidates
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Ipv6 is on the menu for CCIE W v2.0. If you have no knowledge about IPv6,
fear not: there is not much you need to know to survive the exam on that
topic.
I...
Designing a Logging Solution
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I just found out about a great tutorial on designing logging solutions by
Marcus Ranum. Marcus has been doing network security work for a long time
and is ...
Ticket #18 - Repubished
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I am reposting here Lab 18, which was published on ccieflyer.com ...Please
follow the instructions found here about how to use the lab file. ...For
more mi...
Inter-AS VPN
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Here are the options to have Inter-AS MPLS VPN to span service providers
and autonomous systems.
Option 1: Back-to-back VRF Option 2: Multiprotocol eBGP (...
Getting Ready for Another Lab Exam Attempt
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Hi,
Another post after a long time, After the unsuccessful lab attempt in July
2010, I was got really busy chasing my pending stuff. That includes both
of...
ASA 8.4 – first look
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Just under a year since the last major ASA version, Cisco released a new
version: 8.4(x) While this version came earlier than I would expect, there
are som...
So I Started The New Networking Gig
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Firewall VPN performance is in the dumper. And oh, by the way, the other
firewall in the HA pair was powered off. Years ago. Because “it’s broken,
but w...
The BGP Decision Process
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As it is coming up to re-certification time, I have dusted off my copy of
Wendell Odom’s CCIE R&S Certification Exam Guide. I have the second
edition, whic...
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