Packets mark with DSCP CS3,AF31,AF32 and AF33 are not received by ESX server


Packets mark with DSCP AF31,AF32 and AF33 where not getting received on ESX servers that were connected to Nexus switches and that were also configured to use FCOE.

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How to upgrade or install an Ace service module OS from the supervisor engine of a VSS pair


This document will show you how to upgrade or install an Ace service module OS from the supervisor engine of a VSS pair,
This procedure is to be performed, if the Ace server module do not boot from the internal flash or if the version of the OS is incompatible with the supervisor engine IOS release

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Restore an Cisco Ace server from a full backup


This document will show you how to restore an Ace server from a full backup stored on a ftp server


  • Please note that this procedure will disrupt traffic and must be performed in a maintenance windows.
  • This procedure assumes that another Ace server is running in a HA pair with Context that are load balanced
  • Backup of the active Ace server is recommended before beginning this procedure.
  • This procedure has been tested in a lab environment and the author can not guarantee that it will work in your environment

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Interface numbering with the module module WS-X6904-40G Cisco Catalyst 6900 Series 40 Gigabit Ethernet .

Usually the interface numbering for Cisco equipment is pretty strait forward.
It is interface Type chassis/Slot/port number or Type switch/module/port number  I.e. interface Gi1/0/1 will refer to port 1 of a catalyst 2960s or cat3750, in the case of a Catalyst 6500, interface Gi1/1/1 to port 1 of the module/blade 1 in the chassis #1 of a VSS pair.
So if you see the following interface TE1/2/8 you would assume that it’s the 8 interface on slot 2 for the chassis #1 and you might be wrong  If you are using the module WS-X6904-40G Cisco Catalyst 6900 Series 40 Gigabit Ethernet Interface Module with the port adapter CVR-CFP-4SFP10G FourX converter to convert each 40GE port into 4 10GE SFP+ ports.
The numbering for this module is as follows, port 1 to 4 refer to 40G port and port 5-20 to the 10G port.

So if you have the following setup


The interface numbering for your interface in the configuration would be

show interfaces status switch 1 module 2

Port       Name   Status                   Vlan                       Duplex                 Speed   Type
Te1/2/5               connected          trunk                     full         10G        10Gbase-LR
Te1/2/6               connected          trunk                     full         10G        10Gbase-SR
Te1/2/7               connected          trunk                     full         10G        10Gbase-SR
Te1/2/8               disabled              unassigned        full         10G        10Gbase-SR
Te1/2/9               disabled              routed                 full         10G        No Connector
Te1/2/10             disabled              routed                 full         10G        No Connector
Te1/2/11             disabled              routed                 full         10G        No Connector
Te1/2/12             disabled              routed                 full         10G        No Connector
Te1/2/13             connected          trunk                     full         10G        10Gbase-SR
Te1/2/14             connected          trunk                     full         10G        10Gbase-SR
Te1/2/15             connected          trunk                     full         10G        10Gbase-SR
Te1/2/16             connected          trunk                    full         10G        10Gbase-SR
Te1/2/17             disabled              routed                 full         10G        No Connector
Te1/2/18             disabled              routed                 full         10G        No Connector
Te1/2/19             disabled              routed                 full         10G        No Connector
Te1/2/20             disabled              routed                 full         10G        No Connector

It is important to remember this, when instructing an onsite technician where to plug or unplug cable as unless he knows the particular numbering there is a good chance that he will count the port from right to left starting at 1 and when you specified port te1/2/5 that correspond to the first 10G port on the blade, he might unplug port te1/2/9 (5th physical port) and create havoc in your network.

I almost learn this particularity the hardway and though I might not be the only one

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Ciscolive 2013 Wrap up

Ciscolive 2013 is history, and what a week it has been. just imagine 20,000 geeks and nerds going to drink the Cisco Koolaid directly from the fountain or may be I should say the fire hydrant


It started monday with breakout session, I had 3 session schedule that cover an introduction to Cisco Prime for network management, another that cover IPV6 deployment in the enterprise with Shanon McFarlane (@eyepv6) and finally troubleshooting firewall.

Not to forget that monday is the opening night of the World of solution and the swag collecting frenzy. This was also the opportunity for ccies to get their special gift and ccie ribbon. Since the last 3 Ciscolive, CCIE can get a temporary tattoo of the ccie logo, while most of them get it on the shoulder, some choose a more personal place

Tuesday is the opening keynote with John Chambers, this year, Mr Chamber share the stage with Padmasree Warrior. I allways found Mr Chambers engaging is his keynote. He walk around the audience and he have a way to look at you that make you believe that he is talking to you directly.


Beside the keynote, i took 2 sessions Threat Defense using NetFlow and ISE and Pv6 Planning, Deployment and Operation Considerations, both session were interesting.

As a CCIE, we have a special event on tuesday night, this year it was a Universal Studio Island of adventure, We had a blast, It all started in Orlando City walk where we had lunch and drinks in a reserved section and from 10:00pm to 12:00am, we had the park for ourself, where there was still more food and drink and 4 attractions were open for us, This was by far the best CCIE event that I have been to and from the comment i have heard the best ever


Wednesday, I took 1 session Fundamental IOS security feature, this is the only session that I found average, mainly because of error in the presentation and the content was not going deep into configuration.

In the afternoon, we had the CCIE Netvet reception where we meet John Chambers in a Q&A session that last around 2 hours. This session is great, we can ask question, make suggestion and express our concerns about Cisco services. Mr Chambers answer them candidly and have his team take note of our grief and hopefully get them resolve. It was my 4 reception and it is getting more crowded every year. It was the first year that the event was in the afternoon, it was usually held at 5:00pm, I must say that I do prefer the “happy hour” formula since this is not interfering with session.


Wednesday is also Customers appreciation event, This year the event was at Universal Studio, We had the park to ourself (Well all 20,000 geeks). There was food, drink and band, This year the feature band was Journey, they offer a 45 minutes concert of their greatest hits. Personally, I did most of  the attraction since they were no or minimal waiting time. I even got a picture with Shrek and Fiona.


This year hat was based on the despicable me minion caracter


Thursday did come too fast, I attend 1 session The art of network architecture presented by network rockstar Denise Donohue (@denise_donohue), Russ White  and Scott Morris.

The last Keynote speaker this year was Sir Richard Branson, This keynote was interesting, funny,entertaining and we got some great quote from Sir Branson such as , “It impossible to do this, good let’s try it” “Nothing is more important than your reputation”. The only downside, I found that this was a 1 hour infomercial about Virgin.

After the keynote we took our traditional Ciscolive tweeps picture.


This is getting bigger and bigger every year, it is hard to believe that 3 year ago, we could easily read the whole Ciscolive.

I want to thanks all of you to have made this year memorable, hope to see you next year. A special thanks to the Ciscolive social media team that took care of us and provide us with a great place to hang out and especially to Kathleen Mudge  (@kathleenmudge). A shout out to Tom Hollingsworth(@networkingnerd) and Jeff fry(@friguy_pa) for there dedication and work on getting us all together

See you next year

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When networking become social

Today was the 1st day of Ciscolive 2013, It was also the first tweetup at the social media lounge. For what I could read and see of the tweeter feed it was a success. I barely made it because of an airline delay but I was sure glad that I could be there for the last half hour and I wouldn’t missed it for the world.


This kind of start 3 year ago at Ciscolive 2010 in Vegas where Tom Hollingsworth  @networkingnerd « reserved » a table in front of the W.O.S. where we hang out, we were around 20 to 30 tweeps


Then for the next 2 years, more and more people showed up and hang out at the social media lounge.


I have met great people that I can hang out with for the week and keep in touch via tweeter and other social media although I am mostly reading the tweeter feed and rarely adding to it mainly because of access at work and language barrier.


Ciscolive have become more a social get together where I can meet old friend and make new one and exchange about of work experience than just another customer show where we are getting killed by power point.


I look forward to the next days to meet old friend and make new one. Because we are the “Human network” and this is what I want to connect todayImage


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Ciscolive know before you go (revisited)

These are my tips for CiscoLive newbie, These have been learned from my mistake and previous experience at the conference.

Have an orientation tour of the facilities after registering

The conference center are usually huge, I recommend that you walk around after your registration to locate, where the meals will be served, the World of Solution, if you are taking a test, locate the test center etc.

There is also conference hosts that wear the same t-shirt, they are there to help you find where you need to go, don’t be afraid to ask direction, they might save you a lot of walking and being late at session.

I also like to walk and try to avoid the shuttle as much as possible, so I always try to find the shortest and easiest path to my hotel. This gives me extra minutes of sleep.

TIP: Do not be afraid to ask direction to get where you need to go

Netvet mentoring program

This year, Ciscolive introduce a new program call the Ciscolive Netvet mentor program, where a Ciscolive Netvet will be paired with a first year attendent.  This is a great opportunity for all new attendant to get knowledge about the conference and get to meet fellow network engineer and have a friendly face to contact if you have any question.

The Netvet mentor have to contact their mentee, before, during and after the show. I will participate to this program and will most likely introduce my mentee to the Social media lounge where I usually hang out between breakout session. I look forward to see if this initiative will work and wished I could have benefit for it the 1st year I was attending


Get you conference pass as soon as possible and try to avoid the Monday morning rush. The registration process is easy and fast, You will get your conference pass that will allow you to attend the breakout session, keynote, access to World of solution, meal and party. Always check to see if you have it, before leaving your hotel room, and try not to loose it as it can be replacing with fees.


June 6

3:00 PM

7:00 PM

June 7

7:00 AM

5:00 PM

June 8

7:00 AM

7:30 PM

June 9

7:00 AM

7:00 PM

TIP: Check the lanyard clips, some are loose and I had to replace the lanyard a couple of time because the pass did not stayed attached properly.

Breakout session

This is the reason that you told your boss and wife to attend CiscoLive (while we all know it is for the party), You scheduled them and now that you are in the session you realize that you know the stuff, don’t like the presentation, I suggests that you make the best of your time and look for another session of interest and go, they will let you in if there is still place in the room.

TIP: Make the most of your time and attend session of interest

You can ask question to during the presentation, but please if you are trying to solve whatever issue you have at work, wait at the end of the presentation and take it offline with the presenter

You can bring you laptop, tablet and mobile phone to follow the presentation deck and take note. There are some power bars so you can plug your equipment in. Last year I only had my tablet and it was enough to cover my needs for the conference.

If you find the session boring and feel like watching a movie, update your Facebook status or need to work, please go outside the conference room (Refer to tips below) , this is again simple courtesy to your fellow attendee, keyboard noise are annoying and unless the movie is great, I’d rather listen the presentation.

TIP: Please be considerate of your fellow attendees

Also, beware, if you fall asleep, there will be some one to take a picture and post it on the #clus feed and also please do not snore…

Laptop, tablet and mobile phone

Please make sure that all your mobile device and laptop are on mute and/or vibration, this is just courtesy for the presenter and your fellow attendees. We are not interested in hearing your latest LMFAO ringtone.

Also, if you think there might be a possibility that you will receive a call and that not answering it will make the western empire as we know it collapse, please take a seat at the end of a row or even better and the back of the room. We are not interested in learning that your core has just melt down and please answer your call as quietly as possible.

TIP: Please make sure your devices are on mute and vibration.

Wifi coverage

There is wifi coverage in the conference area and I must say that for the last 2 years the coverage was good. I notice that the 5 ghz band was less used and therefore my tablet could always connect while my phone could not. Except for the World of solution and the keynote, I was able to connect to the wifi and have access to the internet

Dress code

There is no dress code. Dress to be comfortable and remember that you might see customers, partner and coworker. So try not to be remember as the one who got the tramp stamp…

Also, the room are air conditioned and sometime I find that it is cold in the room especially in the morning and early afternoon.


You will notice that some attendees have a red or orange lanyard, there are Netvet, they have been to at least 3 Cisco live events in the 5 years so if you have any question, do not be afraid to ask, we may not have the answer but might know who to tweet to get it.

Do not be offended if I do not understand you at first

As you most likely notice english is not my first language, so for me Ciscolive is an exhausting week as my brain need to be in gear to attend the session and understand what is going on around me. So sometime I just shut my brain off and wander around. So if you talk to me I need to reboot and will ask for a retransmit… Also I have to be attentive to the different english accents and I have a very strong one

See you at Ciscolive and hope to meet you

Related Blog Post

From my friend Jeff Fry

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