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What I’ve Been Doing Lately

Beside Cisco and my MBA, I work as managing director for a non-profit organization GEM Foundation that I founded last year along with other Indonesian professionals.

 
Our focus is to help preparing Indonesian students and young professionals, as the next generation leaders for my country, to be prepared for the global competition.


Our activity includes regular biweekly Webex session by experienced professionals and entrepreneurs, mostly live outside the country, to share their knowledge, wisdom, experience, tips and tricks in finding a job, getting a job, or creating a job.
In average 70-80 students and young professionals attended our session.


We always try to meet the students in person in order to provide inspiration and opportunity to have face-to-face and open discussion. Last year I met more than 400 students and professionals during my visit to 4 universities in Indonesia.


My activity won me spot in national news. But I didn't bother.


Early this month I went to one technical high school and couple of universities in one Indonesian city called Malang, to do something similar like last year. I was given honor to give keynote speech in the annual event arranged by the alumni of the high school.


I Continue reading

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CCDE Group Study by INE

Over the weekend I attended the CCDE group study sponsored by INE in Chicago. Discussion and material were let by Petr Lapukhov and Brian McGahan. I’m very excited to see high level networking event in my hometown. We had about 15-20 people in the class. This was my first exposure to CCDE so it was a lot of information absorbing. The test is composed of 4 scenarios. You have about 8 hours to pass the computerized test. Just like in other written Cisco certifications, you can’t go back once you answer the question. The test seems to be based on mastering the design’s information extraction from pages and pages of information. Most of the technology focus is on MPLS, routing, QoS and some security.

In the group study we went through Cisco’s CCDE practice demo (https://learningnetwork.cisco.com/docs/DOC-2438). I thought the discussion was very interested, especially from people that have been studying for the test. If you take it and want to look at the solution you can find it at http://www.shafagh.net/2012/08/ccde-demomystery-solved.html. Next we went through INE’s CCDE practice scenarios written by Petr and Brian.

Mainly, I wanted to post some very interesting documents that Continue reading

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Quiz #9 &#8211 BGP peering over a Cisco ASA

Your company has 2 offices that are interconnected via a firewall (Cisco ASA) as shown below. You received the task to configure a BGP session between the border routers but something does not go according to plans.

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PBR – Policy-based Routing configuration example

How does the internet work - We know what is networking

Policy-Based Routing Configuration Here we will show different examples for configure specific PBR types: Enabling PBR on the Router Fast-Switched PBR Local PBR CEF-Switched PBR Enabling PBR This command will define that the router will use PBR and that the PBR will use route-map named TEST. R1(config)# route-map TEST permit 10 Defines a route map […]

PBR – Policy-based Routing configuration example

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Show 136: Avaya – Considerations for Turning your Network into an Ethernet Fabric – Sponsored

We’ve done a few shows now on Ethernet Fabrics where we have been getting deep into the different technology options and different vendor implementations.  Avaya has sponsored this show where we actually interview customers who were early adopters of fabric-based  and talk about what drove these customers to implement a network fabric, how they went […]

Author information

The post Show 136: Avaya – Considerations for Turning your Network into an Ethernet Fabric – Sponsored appeared first on Packet Pushers Podcast and was written by Greg Ferro.

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Network behind an IPSec VPN peer

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Default route and RIB/FIB entries

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Recursive Routing with Tunnels – study case: GRE over IPsec

This post represents the solution and explanation for quiz-6. Running dynamic routing protocols over tunnels can result in recursive problems. Read more to understand the problem and some solutions.

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A Cloud Without IPv6

As a Data Center junkie, I daily bear witness to the glorious transformations that are taking place all around me with respect to the “next-generation” of data center. Everyone who wants to move their DC to the next level are millions of dollars worth of DC networking gear that is EXTREMELY cutting edge, enabling virtualization and cloud to do things we only dreamed of being able to do mere years ago.

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A Cloud Without IPv6

As a Data Center junkie, I daily bear witness to the glorious transformations that are taking place all around me with respect to the “next-generation” of data center. Everyone who wants to move their DC to the next level are millions of dollars worth of DC networking gear that is EXTREMELY cutting edge, enabling virtualization and cloud to do things we only dreamed of being able to do mere years ago.

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Using GNS3 for Switching Labs

For so long, I’ve heard - as have many of you I’m sure - that GNS3, though a GREAT emulator for Cisco IOS software, is not practical for studying anything related to switching. Routing is handled just fine, but because of the proprietary ASICs in Cisco switches, it is not something that can be easily reverse-engineered, thus GNS3 cannot do it. After all, all routing is essentially done in software in GNS3.

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Using GNS3 for Switching Labs

For so long, I’ve heard - as have many of you I’m sure - that GNS3, though a GREAT emulator for Cisco IOS software, is not practical for studying anything related to switching. Routing is handled just fine, but because of the proprietary ASICs in Cisco switches, it is not something that can be easily reverse-engineered, thus GNS3 cannot do it. After all, all routing is essentially done in software in GNS3.

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Quiz #8 &#8211 MPLS: inside Provider’s Core

You are a network engineer of a company that provides MPLS services to more customers. Your teams tries to increase the redundancy, but instead they receive complaints that connectivity is broken. What's wrong?

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The “D” in SDN

I have seen the conversation around SDN evolve over what amounts to the last few years from something that was barely whiteboard material, to something on everyone’s lips in this industry. Why? What’s so interesting about these three little letters? Well, if you’ve heard of it, you’ve undoubtedly heard from your local vendor account manager that their product is the leader in the SDN market, or that they just made a big acquisition that really puts them ahead in the SDN space, blah, blah, blah.

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The “D” in SDN

I have seen the conversation around SDN evolve over what amounts to the last few years from something that was barely whiteboard material, to something on everyone’s lips in this industry. Why? What’s so interesting about these three little letters? Well, if you’ve heard of it, you’ve undoubtedly heard from your local vendor account manager that their product is the leader in the SDN market, or that they just made a big acquisition that really puts them ahead in the SDN space, blah, blah, blah.

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TRIO Card: packet capture with pfe commands

During a complex case on Juniper platform, I looked for a tip to capture transit traffic on a MX960 with Trio cards. Indeed, I suspected a Junos box to rewrite transit mpls traffic with an unexpected exp value. As I love carry out reverse engineering,...

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TRIO Card: packet capture with pfe commands

During a complex case on Juniper platform, I looked for a tip to capture transit traffic on a MX960 with Trio cards. Indeed, I suspected a Junos box to rewrite transit mpls traffic with an unexpected exp value. As I love carry out reverse engineering,...

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TRIO Card: packet capture with pfe commands

During a complex case on Juniper platform, I looked for a tip to capture transit traffic on a MX960 with Trio cards. Indeed, I suspected a Junos box to rewrite transit mpls traffic with an unexpected exp value. As I love carry out reverse engineering,...

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vSphere Network Security Policies

The idea of security in a vSphere vSwitch is a concept not usually discussed in vSphere peer groups or curricula. They are somewhat specialized features that are normally either not used, or irrelevant due to the presence of another switching architecture such as the vDS (including the Cisco Nexus 1000v) or VM-FEX, where these policies also exist and are much more feature-rich. Thus, the idea of performing these functions on a native vSwitch is usually not talked about.

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vSphere Network Security Policies

The idea of security in a vSphere vSwitch is a concept not usually discussed in vSphere peer groups or curricula. They are somewhat specialized features that are normally either not used, or irrelevant due to the presence of another switching architecture such as the vDS (including the Cisco Nexus 1000v) or VM-FEX, where these policies also exist and are much more feature-rich. Thus, the idea of performing these functions on a native vSwitch is usually not talked about.