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Conference ozrock::x25_osf

Title:	Proudly built by the engineers of NaC Australia

Moderator:	DELNI::MUGGERIDGE

Created:	Mon Oct 12 1992
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	908
Total number of notes:	3829

885.0. "Customized Frame protocols for PCI/Sync Controller" by ZPOVC::COLINTONG () Fri Apr 11 1997 20:44

    Hi,
    
    My customer want to implement their own frame protocol for the PCI/Sync
    controller on Digital UNIX. The standard WADD API supports a list of
    standard protocols ( but I think only HDLC is supported ). Now the 
    questions is do we support extension of the WADD API ? 
    
    Any info are welcome
    
    Thanks
    
    Colin Tong

T.R Title User Personal
Name Date Lines

885.1 DELNI::MUGGERIDGE Sat Apr 12 1997 08:03 14

T.R	Title	User	Personal Name	Date	Lines
885.1		DELNI::MUGGERIDGE		`Sat Apr 12 1997 08:03`	14
	We only support HDLC framing. That is different to the HDLC protocol. You can write any user protocol over our drivers, as long as your talking to equipment which can handl the HDLC framing. ie: Each frame must appear on the wire with the following: FLAG DATA CRC FLAG Where FLAG = 0x7e DATA = Client's data (in your case it will be your private protocol) CRC = Frame check sequence Matt.

We only support HDLC framing.  That is different to the HDLC protocol.

You can write any user protocol over our drivers, as long as your
talking to equipment which can handl the HDLC framing.  ie:

Each frame must appear on the wire with the following:

	FLAG  DATA   CRC   FLAG

Where FLAG = 0x7e
      DATA = Client's data (in your case it will be your private protocol)
      CRC  = Frame check sequence

Matt.