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Date:      Tue, 29 May 2001 11:41:09 +1000 (EST)
From:      Colin Campbell <sgcccdc@citec.qld.gov.au>
To:        Laurence Berland <stuyman@confusion.net>
Cc:        Christophe Prevotaux <c.prevotaux@hexanet.fr>, <deepak@ai.net>, <questions@FreeBSD.ORG>, <isp@FreeBSD.ORG>
Subject:   Re: OC48 interface
Message-ID:  <Pine.BSF.4.33.0105291136060.90725-100000@guru.citec.qld.gov.au>
In-Reply-To: <3B12CBBE.567B1A8D@confusion.net>

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Hi,

Pedant alert! According to the book in front of me (ISP Survival Guide
(Wiley) by Geoff Huston)

The Synchronous Digital  Hierarchy

Level		US 		International		Mbps
-------------------------------------------------------------
 1		OC-1					51.84
 2		OC-3		STM-1		       155.52
 3              OC-9            STM-3                  466.56
 4              OC-12           STM-4                  622.08
 5              OC-18           STM-6                  933.12
 6              OC-24           STM-8                 1244.16
 8              OC-36           STM-12                1866.24
 9              OC-48           STM-16                2488.32
10              OC-192          STM-64                9953.28

On Mon, 28 May 2001, Laurence Berland wrote:

> IMO 622=OC12...perhaps I'm misled?
>
> Shouldn't OC48 be 2.488Gbps?

Colin


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