Hi Everyone,

I would like to apologize for not posting enough technical blog posts recently; apparently development is taking too much spare time from me. Before I finally make a new technical-focused post, I thought of summarizing the stuff that I have written so far, and making a small catalogue of my blog posts. The catalogue covers the most interesting (IMO) posts that are probably worth reading and is broken down in categories. I hope you will find it useful.


Undestanding Custom Queueing
Catalyst 3550 QoS Explained
Quick Notes on 3560 Egress Queueing
Bridging the gap between 3550 and 3560 QoS: Part 1
Bridging the gap between 3550 and 3560 QoS: Part 2
Traffic Classification Options in 3550/3560 switches
PPP Multilink Interleaving over Frame-Relay
Comparing Traffic Policing Features in 3550 and 3560 series swtiches
Understanding Shape Peak Command
Insights on CBWFQ


Understanding Private VLANs
Handling Fragmented Traffic
Undestanding External ezVPN Authorization
Understanding how ASA firewall matches tunnel-group names
Understanding IOS Local AAA
IPSec High Availability with HSRP
Combining ezVPN with VRF Lite
DMVPN Technology Explained
DMVPN Phase 3
Understanding ASA MPF


Gatekeeper Call-Routing at a Glance
Using RTP Loopback target for VoIP PSTN Call Testing
Configuring a PSTN dialplan for CCIE Voice Lab

Service Provider

Understanding MPLS Ping and Traceroute
Undestanding Cell Mode MPLS
Curious Scenario: Poor Man’s VPLS
Curious Scenario: Turning Switch into Hub


MSTP Tutorial Part 2: Outside a Region
MSTP Tutorial Part 1: Inside a Region
Understanding PVST+
Understanding STP Convergence: Part 2
Understanding STP Convergence: Part 1


Understanding Redistribution: Part 1
Understanding Redistribution: Part 2
Understanding Redistribution: Part 3

Other Technologies

A Curious NAT Scenario
The Inside and Outside of NAT
Understanding IPv6 NAT-PT
GLBP Explained


Introduction to Optimized Edge Routing
New CCIE R&S v4.0 Lab Exam Format
Understanding Unequal Cost Load-Balancing
Understanding PIM BSR protocol
How to study for your CCIE
What is CCDE Certification?
About Petr Lapukhov, 4xCCIE/CCDE:

Petr Lapukhov's career in IT begain in 1988 with a focus on computer programming, and progressed into networking with his first exposure to Novell NetWare in 1991. Initially involved with Kazan State University's campus network support and UNIX system administration, he went through the path of becoming a networking consultant, taking part in many network deployment projects. Petr currently has over 12 years of experience working in the Cisco networking field, and is the only person in the world to have obtained four CCIEs in under two years, passing each on his first attempt. Petr is an exceptional case in that he has been working with all of the technologies covered in his four CCIE tracks (R&S, Security, SP, and Voice) on a daily basis for many years. When not actively teaching classes, developing self-paced products, studying for the CCDE Practical & the CCIE Storage Lab Exam, and completing his PhD in Applied Mathematics.

Find all posts by Petr Lapukhov, 4xCCIE/CCDE | Visit Website

You can leave a response, or trackback from your own site.

4 Responses to “Blog Post Catalogue”

  1. Martin says:

    Epic Wins

    You has it

  2. Dmitriy Litvinko says:

    Great idea …. Thanks Petr.

  3. AJN says:

    Brilliant Petr!
    Thank you

  4. Agathos says:

    Hey Petr, any news on VOl1 updates for the v4 IE R&S blueprint? Any chance we’ll see some Vol1 additions for MPLS, routing technology updates, etc?


Leave a Reply


CCIE Bloggers