Archive for January 17th, 2007

Comcast sucks slightly less…

So, if you remember, on Saturday, we had a minor meltdown trying to get reception for the Eagles playoff game on the living room Comcast DVR/Cable box. Part of my list of things to do the following day was to get a replacement DVR box. I browsed to Comcast’s website and did a quick search for a place to ‘replace converters and other equipment’. I already knew there was one in South Philly on Columbus Boulevard, but I was mostly after their hours.

They opened at Noon on Sunday and were closed on the MLK holiday, so I made sure to set the alarm for 10:30am so I could get to the Comcast office bright ‘n’ early.

I got there at exactly 12:05pm … and there were thirty people ahead of me! Jeez Christ! The Comcast-Suck-o-meter was ratcheting up to the red line! Yet more inconvenience I can lay at their feet!

I grumphled to the back of the line … queued up like a good little boy. I glanced around and took stock of what people were there for; a good 75% of them had cable bills in hand, ostensibly stopping by the office in person to pay their bills. A good sign, since bill-paying is relatively quick and easy. Several had non-hi-def cable boxes in hand, which hopefully a) they wouldn’t rub any of their “analog signal”on me and b) they were replacing immediately posthaste forthwith absolumon with shiny HD-capable cable boxes.

Before I knew it, about 30 minutes had elapsed and I was at the front of the line! There was only one cashier/CSR/waitron there, but she was no-nonsense-lickety-splickety-rabbit-quick with getting each person’s questions answered, and I was no exception.

I’m here to exchange my old DVR for a brand new one.

Is there something wrong with the old one?

No.

Okay here’s the new one. Do you need a remote?

She handed me a shrink-wrapped DVR that I could just tell was brand-badunkin’ new! I peered through the plastic and spied two things that made me quiver with delight: HDMI, and 160GB.

My old DVR had a “lousy” DVI output for HiDef video feeding to my TV. My new DVR has the top-of-the-line, all-digital, holy-grail of A/V interfaces. My old DVR had a practically “anemic” 120GB Hard Drive. My new DVR has a 33% larger drive for recording even more HD episodes of Gilmore Girls! I can’t believe it! They just gave it to me because I drove up and asked!

I was in geek heaven.

Cisco is on my short list…of enemies!

We’re investing (heavily) into IBM Blade Servers and VMWare at the office, and we got a brand-spanking new BladeCenter … (the chassis that holds each of those Blade Servers…think laptop docking station but for databases and email servers) … just before the winter break.

One of the first things Scott and I tried to configure networking modules, also known as the “Cisco Intelligent Gigabit Ethernet Switch Modules” or CIGESMs for short. Really, they should be called CYHTBMITSHESMs … as in “Cisco’s You-have-to-be-more-intelligent-than-Stephen-Hawking-ESMs” … The learning curve is so steep on these switches that it almost completely negates the usability features built into the rest of the IBM equipment that surrounds it.

It’s like putting a DOS prompt on an iPod; it just doesn’t make any sense!

The documentation doesn’t help. A couple of those PDFs are over 500 pages long, and filled with so much networking jargon and tech-speak, it might as well be a different language.

But, CIGESM, I have conquered you! I wanted to modify the VLAN configuration for particular ports attached to particular blades, and through many hours of sifting through technical support forums, gleaning small hints here and there on what exactly to do, and a little bit of trial and error, I am now a CIGESM VLAN master. Behold; the words below will open the doors to VLAN-nirvana.

configure terminal
vlan 3
name Firewall
vlan 400
name DummyVLAN
interface gi0/1
switchport mode trunk
switchport access vlan 3
no switchport trunk native vlan
switchport trunk allowed vlan 2,3
spanning-tree enablebpdufilter
spanning-tree portfast enable

It’s the “no switchport trunk native vlan” spell that’s the key.

Na’maste. <bow>


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