Transcript Document

Why did the MEF create Carrier Ethernet
B&B Academy
David Zaveski
[email protected]
Polling Question
Jump into the way back machine!
Historically Speaking
(not at the very beginning but close)
IPX/Ethernet
To the internet
v.35
56k modem
IPX/IP Gateway – Email server
Historically Speaking
(not at the very beginning but close)
• Small text only emails
• 56k was really all that was needed
• Possible some small files upload and
downloaded via FTP or Bulletin Board systems
– Remember Wildcat BBS?
Historically Speaking
T1 or E1
V.35
(Middle ages)
Historically Speaking
(Middle ages)
• Web browsing! yeah
• Still relatively small files
• The beginning of downloading larger files
– Music
– Software
– Browser wars
Historically Speaking
T1 or E1
DS3 or E3
DSL/Cable
(Middle ages/today)
Historically Speaking
• Large file downloads
– Movies
• Streaming!
– Movies
– Music
• Social Media
– Facebook
– LinkedIn
(Middle ages/today)
More Bandwidth Please
About Ethernet
• Designed for LAN communications.
– Simple – no guarantee of delivery of data
– Easy to implement
– Everyone (manufacturers) makes Ethernet devices
– Cheap!!!!
– Dominant LAN protocol everywhere
About Ethernet (cont.)
• Hardware for Ethernet
– Twisted pair (copper) – limited to 300 feet (100m).
• Has been around for years and is everywhere.
About Ethernet (cont.)
• Hardware for Ethernet
– Fiber Optic – Limited to around 60 miles (100km).
• Initially used only for connections between large Telco
exchanges.
• Eventually installed in every open trench.
• Started out as expensive per foot but is below the price
of copper in some cases today.
Fiber optics is the Game Changer
• Why is Fiber the game changer?
– Ethernet was limited to 300 feet over copper, T1s
could be extended much further over copper.
– Fiber provides more bandwidth than copper.
– Copper (Cu) is getting very expensive, fiber is
getting more economical.
– Copper lines can erode but Fiber last longer,
better investment over time.
Ethernet for Service Providers
• Eureka!
• Ethernet over fiber can be used to deliver
greater bandwidth for lower cost then
traditional Telco Services
– T1/E1
– T3/DS3
The Wild Wild West
• Some service providers used managed media
converters to deliver Ethernet over fiber.
–
–
–
–
Bandwidth limiting but little else.
No real accountability.
Could not guarantee complex SLAs.
Could not guarantee consistency when more than one
carrier is involved in delivering the service.
• These issue were resolved in the older Telco
circuits and also part of the reason for their high
cost.
Cost?
• Why are traditional Telco services so
expensive?
– Voice technology used for data
• Voice tech requires timely delivery of information.
– Accountability and manageability
• SLA (Service Level Agreements).
– Dedicated Circuit vs Packet routing
• Bandwidth through the carrier’s network.
Quick word about Packet switching
The Birth of MEF and Carrier Ethernet
• Service providers wanted a standard that would guarantee:
– They could meet SLAs
– Consistency when circuits crossed multiple Carrier’s networks
• Manufacturers wanted a standard that would guarantee:
– That they were investing time and money in a product that
would meet the needs of the Carrier
– They could sell there equipment to a variety of Carriers
• Carriers wanted:
– A choice of hardware manufacturers
– Interoperability between manufacturers equipment
Carrier Ethernet over ??
• Fiber – yes fiber has played a big role but MEF
– Carrier Ethernet is not confined to one
media.
MEF – Carrier Ethernet
• Five core attributes of Carrier Ethernet
Attribute 1: Standardized Services
• E-Line, E-LAN provide transparent, private line, virtual private line
and multi-point to multi-point LAN services.
• A common service providing globally & locally via standardized
equipment
• Requires no changes to customer LAN equipment or networks and
accommodates existing network connectivity such as, timesensitive, TDM traffic and signaling
• Ideally suited to converged voice, video & data networks
• Wide choice and granularity of bandwidth and
quality of service options
Attribute 2: Scalability
• The ability for millions to use a network service that is
ideal for the widest variety of business, information,
communications and entertainment applications with
voice, video and data
• Spans Access & Metro to National & Global Services over
a wide variety of physical infrastructures implemented
by a wide range of Service Providers
• Scalability of bandwidth from 1Mbps to 10Gbps
and beyond, in granular increments
Attribute 3: Reliability
• The ability for the network to detect & recover
from incidents without impacting users
• Meeting the most demanding quality and
availability requirements
• Rapid recovery time when problems do occur,
as low as 50ms
Attribute 4: Quality of Service
• Wide choice and granularity of bandwidth and
quality of service options
• Service Level Agreements (SLAs) that deliver
end-to-end performance matching the
requirements for voice, video and data over
converged business and residential networks
• Provisioning via SLAs that provide end-to-end
performance based on CIR, frame loss, delay
and delay variation characteristics
Attribute 5: Service Management
• The ability to monitor, diagnose and centrally
manage the network, using standards-based
vendor independent implementations
• Carrier-class OAM
• Rapid service provisioning
10,000 ft. view of the most basic structure
• EVCs, NIDs an UNIs oh my Lots of acronyms in the MEF documents
EVC = Ethernet Virtual Circuit
NID = Network Interface Device
ENNI = External Network to Network Interface
UNI = User Network Interface
EVC1
EVC2
EVC3
NID
Operator 1
(Service Provider)
UNI
ENNI
Operator 2
NID
(Access Provider)
UNI
MEF – Carrier Ethernet
A deeper look at performance
monitoring
The Future and Today
100mbps;1 Gig; 10 Gig
Carrier
Ethernet
Over
Fiber
Out Sourced services:
File storage
Email server
Firewall
Ethernet
Polling Question-redux
Questions
1)Carrier Ethernet is just a fancy marketing term for Ethernet
used by carriers. Yes/No?
2)The Carrier Ethernet standard was created by a) Carriers b)
Electronics Manufacturers c) Service Providers d) MEF e) all
the above
3)Carrier Ethernet has a) been around a long time and is now
being phased out b) in the prime of it’s existence c) Only
just beginning to be implemented by carriers
4)What does MEF stand for? a) Metro Ethernet Framework b)
Metro Ethernet Forum c) Model Ethernet Forum
5)By the end of this presentation I should know everything
about Carrier Ethernet, True or False
Thank you!
Contact Information
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General Inquiries: [email protected]
Customer Service: [email protected]
Tech Support: [email protected]
General Inquiries: [email protected]
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