Tools to validate your BGP advertisement on the internet

Following a BGP advertisement hiccup experience last week, we had to explain why it took up to 10 minutes before the situation came back to normal as some part of the internet were unable to reach our services.  Looking at the logs and traffic pattern, we were able to determine and validate that the traffic … Continue reading Tools to validate your BGP advertisement on the internet

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Ciscolive 2015 Recap

Another Cisco live is in the bag, and I did have a great time. Beside the breakout session, keynote and swag collecting at WOS, the best part of this event is connecting with fellow engineer and create a network of expert that can and will help you out if you have question or issue. This year again, … Continue reading Ciscolive 2015 Recap

Ciscolive know before you go (revisited)

updated to reflect 2015 Cisco live

Mes 2 cents

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…

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

PROBLEM 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. REASON This behaviour is cause by design on ESX server using Intel X520 NICs. In a nut shell, packet mark with COS 3 and not FCOE … Continue reading Packets mark with DSCP CS3,AF31,AF32 and AF33 are not received by ESX server

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

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