Does CCIE still make sense?
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A reader of my blog sent me this question:
I am a Telecommunication Engineer currently preparing for the CCIE exam. Do
you think that in a near future it...
Is OpenFlow Losing Its Openness? Part Two.
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Following on from my first blog about OpenFlow, “Is OpenFlow Losing Its
Openness?” I have done a lot of reading and have come to the below
thoughts. First,...
A picture which is worth far more than a 1000 words.
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The picture below should be put into a frame and put onto the desk of
everyone in the IT industry. By day, I am a consultant, so I have quite a
few stories...
Cisco Nexus 7000 upgrade to 8Gb
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When upgrading a Nexus 7000 to NX-OS version 5.2 (using more than 1 VDC) or
to NX-OS v6+, Cisco claims the need to upgrade the system memory to 8Gb.
Note I...
GRE vs IPIP Tunneling
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Generic Routing Encapsulation (GRE) and IP-in-IP (IPIP) are two rather
similar tunneling mechanisms which are often confused. In this article,
we'll exam...
How the Internet in Australia went down under
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How the Internet in Australia went down under This Wednesday for about 30
minutes many Australians found themselves without Internet access. All
these use...
Free Streaming CCNA Voice Bootcamp from INE
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I got today a newsletter from INE announcing a freebie. You have it below.
Enjoy! Free Streaming of our NEW CCNA Voice Bootcamp Course! FOR A LIMITED
TIME ...
CBAC vs ZBF
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As both of these are on the blueprint, I thought it would help to write a
blog post about the differences and how to configure them both. In the real
world...
MSDP
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*MSDP - Multicast Source Discovery Protocol*
The purpose of an MSDP topology is to enable discovery of multicast sources
in other domains
Each PIM-SM dom...
CCIE Lab Tip: Multicast Troubleshooting using mtrace
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We are going to start doing some quick post about tips for the CCIE lab, to
start with the series of post, I’m going to describe the use of one command
tha...
It's Not More Time That We Need
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February has been a very busy time for me. First, because I have to travel
back to back for 3 weeks within this month. Second, because I'm leading
three co...
Wendell Odom Q&A
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In December, I posted a thread in the Announcement forum asking for you
guys to submit any questions you may have for distinguished author and CCIE
#1624, ...
Its a palindromic date day. How absurd.
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Today is 21.02.2012 – for those of us who use yyy.mm.dd format. And of
course you can see that the numbers read the same forward as backwards.
Ignoring th...
All CLI commands Nexus 7000 (NX-OS 5.1)
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A list of every command possible on NX-OS on the Nexus 7000. It’s in a bit
different form than a CLI command reference may list it, and best of all it
inc...
Dodging open protocols with open software
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I have a hunch. Pure speculation, in fact, that there may be an even more
interesting story developing here with the unveiling of networking software
star...
Nuevo examen CCIE Security
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Extracto de:
http://www.cisco.com/cisco/web/solutions/small_business/resource_center/articles/be_more_productive/how_to_become_an_it_security_expert/index....
DHCPv6 fake attack
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DHCPv6 relies on stateless UDP communication using UDP 546 and UDP 547
ports. As stated in the RFC 3315 this is makes DHCPv6 particularly
vulnerable to fak...
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...
Updated CCIE maindmap. Vol.1
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OK, I managed to finish the first volume of an updated version of the CCIE
RS Quick Review Kit. There is some new content added, as well as some minor
and ...
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...
20111127 – Partner Education Connection
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For those in the know, I’ve been tasked with learning Nexus and UC at my
new company for upcoming contract engagements. I won’t divulge the name of
the co...
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 ...
aggregate-address ... summary-only-after-a-while
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As it seems, there is always something that you think you know, until it's proven the other way around.
Some years ago, when i was studying for the CCIE, i ...
Zabbix: send SMS using gammu-smsd
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Recently I needed to setup a Zabbix distribution with SMS notifications. I
had a Momo Design MD-@ USB Internet key to be used as GSM modem, with a BT
Itali...
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...
Welcome back!
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Well judging by the responses, I see there are some of you left out there.
As I mentioned before, I'm going down the Service Provider 3.0 path. I kind
of w...
OTV Deep Dive - Part 3
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After a long delay, let's pick up where we left off last with our OTV deep
dive. This post will focus on a key concept with OTV that is critical to
underst...
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...
How to speed up DSL Connection
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I have been working on some xDSL sync issues and and here are some of my
findings to boost the xDSL Sync rate and have a stable line. Option 1 First
of all...
talking about CCIE
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I recently talk about my experience in becoming CCIE Certified.
This was a good opportunity to share experience and meet old and new
friends.
A shot for my ...
Installing QEMU for JUNOS Integration
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This post will cover the installation of JUNOS on PC. For JUNOS simulation,
I am using OLIVE. Below are the steps required to get the installation
done:-...
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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