Tuesday, January 30, 2007

The agder mobility lab server farms (?!)

Server farms (?). well, not really. But we are on our way! We started off with a Dell 4210 (42U) rack cabinet (we are now very attached to rack as we personally carried and assembled it!) and mounted a few servers. A couple of Dell power edge sc1435 servers will be sitting beside not-so-good looking self assembled (yes, by us!) 2U and 3U servers. The plan is to build a extensive network environment including gateway/firewall, openIMS testbed, AAA server, file server, Asterisk testbed etc etc. The wiring looks a bit unprofessional now, but works nonetheless. Once the initial setup had been done, the tower will be moved to a server room near by, contrary to our initial plan of setting it up in the lab (a bit too noisy). More to come as we get cracking on the hapless servers...

Monday, January 29, 2007

Search & destroy in Aachen: Prototype finally working!

After the interoperability testing at Ericsson headquarters at Stockholm, Sweden during the end of November last year we have been busy killing all bugs discovered during the last round of testing. Now, late January, there was still one last "show stopping issue" left. To be able to work together with Ericsson in Aachen, where they had set up the testing environment, Andreas traveled there on Wednesday, 24th of January.

Thursday morning the root cause was found, and it was just a misconfiguration of a NAT-binding due to a misunderstanding of the product by the developer who had setup the testbed. After we fixed that NAT-binding the system worked as expected, finally, which was a great relief. Later we worked on more testing and co-located some of the functionality to reduce the amount of computers necessary to demonstrate the system. We started with 5 computers and ended up with 3 computers and 1 mobile phone.

Friday, January 19, 2007

The Burning Crusade starts ... and I am on a ferry to Danmark

On Tuesday, Jan. 17 at 00:01 the "Dark Portal" was opened while Andreas and I were on a ferry to Danmark. Aarggghhh! My sons will be level 70 by the time I come back ....

Writing a book with our friends from Mobile Devices Lab @ AAU

Andreas and Frank visited Frank Fitzek's team at the Mobile Devices Lab at Aalborg University (Danmark). While storm "Kyrill" was causing havoc in Europe, we sat safely and continued work on our common book on "Mobile Phone Programming and its Application to Wireless Networking" (Springer). As soon as the flyer is available I'll link it here.