RE: rdmap-03 spec clarification

I always thought that "ignored" means don't even look at it; you don't
care what it is.  Checking for zero and then doing nothing is logically
the same as not checking at all...

Paul R. Culley
HP Fellow
281-514-5543
 

> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On 
> Behalf Of Patricio Kaplan
> Sent: Thursday, April 14, 2005 7:25 PM
> To: RDDP
> Subject: [rddp] rdmap-03 spec clarification
> 
> draft-ietf-rddp-rdmap-03.txt, section 6.1:
> 
> "Bits 32-63; Invalidate STag. However, this field is only 
> valid  for Send with Invalidate and Send with Solicited Event 
> and  Invalidate Messages (see Figure 4 RDMA Usage of DDP Fields).
>  For Send, Send with Solicited Event, RDMA Read Request, and  
> Terminate, the Invalidate STag field MUST be set to zero on  
> transmit and ignored by the receiver."
> 
> Could someone tell me if "ignored by the receiver" means 
> 
> 1) If it is not zero the receiver MUST NOT generate an error
> 2) The receiver MUST CHECK that the STag is zero but in case it is 
>    it does nothing with it.
> 
> thanks in advance,
> 
> -patricio kaplan
> 
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