PhoneGod Interview Series

Colonel Kurtz on ATM

PhoneGod.net staff member had the opportunity to meet with Lieutenant Colonel Walter Kurtz, Special Forces, U.S. Army, educated at West Pointe. To do so Staff member Captain Benjamin L. Willard had to travel down Nung River with the 101's Airborne Ranger Division.



Colonel Kurtz

Phone God

It's good to finally meet you, Colonel. How are you?

Kurtz

Who are you?

Phone God

My name is Willard. Captain Willard, sir. We've met before. I'm from phonegod.net to discuss ATM

Kurtz

Are you an assassin?

Phone God

I'm a soldier.

Kurtz

You're neither. You're an errand boy sent by grocery clerks to collect a bill.

Phone God

Um…ok. I'm here to ask you about ATM.

Kurtz

ATM? The horror.

Phone God

Colonel, could you just answer the question without mumbling?

Kurtz

ATM (Asynchronous Transfer Mode) carries voice, video, and data over a single network. It used PVC (permanent virtual circuits). It's a private network using public facilities. It uses a SONET backbone. It's a high-speed cell switching technology.

Phone God

Thank you. How fast is it, and what do you mean cell switching?

Kurtz

How fast do you need it to be? I once saw a circuit running at the OC3 level. That was 155 MBPS pushing those little 53-byte cells along. They can also be at a DS1 speed and that of a DS3.

Phone God

So it can go as fast as an OC3?

Kurtz

It can go even faster. ATM allows temporary bursting of data beyond the subscription rate. You can also permanently add bandwidth without physically upgrading.

Phone God

So what exactly does it do?

Kurtz

It integrates your LANs and WANs into one WAN. It inter-networks hardware and software. It provides a more…..complete solution.

Phone God

What sort of applications could use it? What would the demographic be?

Kurtz

College campuses. Networking remote locations. Videoconferencing and interactive remote learning. Multimedia workgroups. Collaborative workgroups. Access to a super-computer.

Phone God

What kind of equipment do you typically use for this sort of thing, Colonel?

Kurtz

I've used an AT&T GCNS as a core switch. I've seen a Cisco LS1010 and a Fore Systems ASX - 200/1000 for the premise switch. Have you ever seen an ADC Kentrox AAC-1 or an AAC-3 used for an ATM CSU? I have. In Laos there was a Cisco BPX, the Stratcom they called it. That was an edge switch.

Phone God

 

 


Lt. Colonel Kurtz prepared to redesign an ATM network.

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