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Re: Max Delay Constraints for Rx and Tx


Based on 1000BASE-X work, the P802.3ae Task Force may need to specify
certain delay constraints for 10GBASE-X. 1000BASE-X specifies delay
constraints for both full and half duplex modes. Clearly, the delay
constraints for half-duplex mode are not applicable.

The objectives of 10GBASE-X delay constraints may be the same or
different from those of 1000BASE-X. For 1000BASE-X, the full duplex
objective was predictable flow control (pause control) operation. 

Do you have any suggestions for delay constraint objectives and/or
proposed specifications for 10GBASE-X? 

Best Regards,

Boaz Shahar wrote:
> Hi,
> Can anybody help with the following?
> Are there any presentations / references regarding Max Delay constraints for
> 10G?
> (For instance Max delay from GMII to MDI is 136 bits in giga bit Ethernet is
> there any equivalent for the 10G or its not needed since no Half Duplex and
> no Collisions)
> Thx.,
> Boaz
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