Re: [EFM] 1 Gbps != 999.9 Mbps
To the group, I forgot that we are not supposed to mention any names, but
since I work for these people, it may not matter. My apologies.
Roy
At 05:47 PM 9/26/01 -0500, Roy Bynum wrote:
>Denton,
>
>When a customer buys a T1s worth of bandwidth, he gets the full T1 payload
>bandwidth. For T1 customers that want Ethernet connectivity, 802.3x is a
>good method for doing the bandwidth limiting of a standard Ethernet
>interface to the T1 payload bandwidth. It works well for Ethernet over
>SONET/SDH type services. When a customer buys a native Ethernet GbE
>service over a wavelength, they want a full GbE, not 999.9 Mbps of
>bandwidth. They put their test equipment against it and do a throughput
>test. If the service does not perform at full bandwidth, they complain
>and force the service provider to discount their services. Service
>providers can not make any profits by having to discount their
>services. It is all about customer expectations and perceptions. I know,
>I have had to deal with a some of MCI WorldCom's larger customers. Most
>of them are very demanding.
>
>Thank you,
>Roy Bynum
>
>At 12:12 PM 9/26/01 -0700, Denton Gentry wrote:
>
>>>Service providers have a desire to offer a full 1GE service and not use any
>>>of it's bandwidth for OAM. The rule of conservation of bandwidth means the
>>>OAM needs to go somewhere other then in the bandwidth reserved for the 1GE
>>>payload. I take it as read that 100% utilisation of a 1GE is unlikely, but
>>>that is not the point. The point is that service providers want to offer 1GE
>>>service period, not a 999.9Mbit service.
>>
>> Does the existence of the Mac Control PAUSE frame therefore make
>>Ethernet unsuitable for service providers?
>>
>>Denton Gentry
>>Dominet Systems