The contest is
still going until June 30, 2014 over! There hasn’t been a huge number of entries, so your odds are very good. Get your entries in!
I have copies of both the CCNA Routing and Switching 200-120 Official Cert Guide Library and Networking for VMware Administrators to give away. These are courtesy of Cisco Press and VMware Press, so a big thanks goes to them!
Here’s how you can win one:
Send out a tweet with your CCNA R&S question, including the hashtag #vBrownBag and @scottm32768. If your question too long for twitter, you can post it as a comment here, then link to it on twitter. The best questions by the end of the month (June 30 2014 23:59) will win. Myself and others related to the #vBrownBag podcast will make this decision. In the event we cannot reach a decision, we will use the contents of a hermetically sealed envelope kept in a #2 mayonnaise jar on Funk and Wagnall’s back porch. Or maybe just choose winners at random.
Hi Scott! This will be better since I have more characters.
I once was working at a call center with 2 links to the datacenter where the main systems and PBXs were. The network engineers used a combination of OSPF and static routing. Normally, if the primary link went down, all VoIP phones would lose connection, to be regained some seconds later – this was due to OSPF reconverging I was told. One of the senior guys said he could improve this, and when testing his changes, I did not lose the call we had, much less did the phone go blank. He said he had managed to do this using carefully placed static routes.
My question is – are static routes used in enterprise environments like he did, or could dynamic protocols possibly be tweaked to shorten the time of convergence? Is here any protocol that is better for VoIP than another? For data operations, with tcp re-transmits, a short convergence time is nothing more than a “blip”, but for voice, that blip may mean dropping the call :D
Thanks for humoring me on this question, my experience in networks ended in 2006 and i never really worked as a NetEng, so it’s a doubt I always had :D