Sunday, April 12, 2015

Why should we turn off mobile phones when we travel in an airplane, Part 2

With discussion in previous post, we now know the mobile phone’s GSM TDMA signal pattern would generate buzzing sound on audio speakers. Now, how this is buzzing sound related to the safety of air planes?

After watching many videos of “Mayday, Air Crash Investigation” TV programs, I start to understand that today’s plane communications are still running analog technologies. Pilots would hear the buzzing sound generated by your mobile phone.

Fresh tomatos.
Photo taken in Hsinchu County, Taiwan.


Sunday, February 22, 2015

Video @Scale, "Introducing 6-pack, the First Open Hardware Modular Switch"

I really should have found and watched this video earlier!

This video is presented by Yuval Bachar, the same person posted this announcement on the Facebook Blog.



Here are some quick notes I took after watching this video.

Friday, February 20, 2015

Three configuration management features I like about Cisco IOS XR

I like more and more about Cisco IOS XR after I start to play with it. Here are three quick things I like about IOS XR.

Tomato farm and yellow tomato flowers.
Photo taken in 
Hsinchu County, Taiwan.


Friday, February 13, 2015

Some handy commands I use to save my time doing Cisco IOS XR labs

Remember: Default behaviors of Cisco IOS XR are there to secure your router even we forget to configure them. Never try to disable them on any production network!

For lab practice, however, security is not my concern at all. I list some of my handy configuration fragments to save me time when I do IOS XR labs. I hope they are also helpful to you!

Flower of strawberry.
Photo taken in Hsinchu County, Taiwan.

Two quick observations of Facebook’s announcement of “6-pack” open hardware modular switch

Facebook announced an introduction to its "6-pack" open hardware module switch 20 hours ago. Here are my two quick observations of "6-pack".


Popular Posts