RE: OT Why Ethernet cannot still cross the 10m barrier ?

Copper is meant for short runs. If you need something longer you can run fiber. The distance you can run depends on which optical transceivers you use, whether it's single or multi-mode, and the Ethernet spec. For example you can run both 1GigE and 10GigE over copper, but not over the same cable types and not over the same distances. The same is true for fiber runs.

You can see some examples of which transceivers will run over which lengths below:

http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product_data_sheet0900aecd8033f885.html

http://www.cisco.com/en/US/prod/collateral/modules/ps5455/data_sheet_c78-455693.html

HTH,

Brian McGahan, CCIE #8593 (R&S/SP/Security), CCDE #2013::13
bmcgahan_at_INE.com

Internetwork Expert, Inc.
http://www.INE.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Ahmed
Sent: Wednesday, June 12, 2013 5:32 PM
To: Cisco certification
Subject: OT Why Ethernet cannot still cross the 10m barrier ?

Is there a history for this 100m barrier ? Even with the modern switches , cannot this be overcome ?

Blogs and organic groups at http://www.ccie.net
Received on Fri Jun 14 2013 - 22:12:30 ART