Well, I work for an undersea cable system and we are quite to willing to share the information under NDA that is required to make an intelligent decision. That means the street-level fiber maps and details of the undersea routes.
However, there is a general reluctance because so many carriers are using the same conduits. A lot of fiber trunks can put in a conduit system so it was the norm for carriers to joint builds. For example, in the NYC metropolitan area virtually all carriers use the same conduit to move their traffic through the streets of New York. And again, I will remove the disclaimer. Regards, Roderick. -----Original Message----- From: [EMAIL PROTECTED] on behalf of Aaron Glenn Sent: Sun 1/21/2007 8:40 PM To: [email protected] Subject: Re: Undersea fiber cut after Taiwan earthquake - PCCW / Singtel / KT e tc connectivity disrupted On 1/20/07, Brian Wallingford <[EMAIL PROTECTED]> wrote: > > That's news? > > The same still happens with much land-based sonet, where "diverse paths" > still share the same entrance to a given facility. Unless each end can > negotiate cost sharing for diverse paths, or unless the owner of the fiber > can cost justify the same, chances are you're not going to see the ideal. > > Money will always speak louder than idealism. > > Undersea paths complicate this even further. Just the other night I was trolling marketing materials for various lit services from a number of providers and I ran across what I found to be an interesting PDF from the ol' SBC (can't find it at the moment). It was a government services product briefing and in it it detailed six levels of path diversity. These six levels ranged from "additional fiber on the same cable" to "redundant, diverse paths to redundant facility entrances into redundant wire centers". What struck me as interesting is that the government gets clearly definied levels of diversity for their services, but I've never run across anything similar in the commercial/enterprise/wholesale market. Are the Sprints/Verizons/ATTs/FLAGs/etc of the world clearly defining levels of diversity for their services to people? This e-mail and any attachments thereto is intended only for use by the addressee(s) named herein and may be proprietary and/or legally privileged. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this email, and any attachments thereto, without the prior written permission of the sender is strictly prohibited. If you receive this e-mail in error, please immediately telephone or e-mail the sender and permanently delete the original copy and any copy of this e-mail, and any printout thereof. All documents, contracts or agreements referred or attached to this e-mail are SUBJECT TO CONTRACT. The contents of an attachment to this e-mail may contain software viruses that could damage your own computer system. While Hibernia Atlantic has taken every reasonable precaution to minimize this risk, we cannot accept liability for any damage that you sustain as a result of software viruses. You should carry out your own virus checks before opening any attachment
