Re: Proposal for PSAMP-PROTO section 6.5.2.6

[Youki Kadobayashi <youki-k@is.aist-nara.ac.jp>]

This is a minor point..

Andrew Johnson wrote:
> NOTE: If more than one selection or output range needs to be sent
> then the minimum and maximum elements may be repeated as needed.

This part talks about both output ranges and selection ranges.

> These MUST make one or more non-overlapping ranges.

Perhaps you are talking about selection ranges here,
since multiple digest hash functions can take overlapping
output ranges...

> The elements
> SHOULD be sent as pairs of minimum and maximum in ascending order,
> however if they are sent out of order then there will only be one
> way to interpret the ranges to produce a non-overlapping range and
> the Collecting Process MUST be prepared to accept and decode this.
>
> The following algorithm specific Information Element MAY be sent,
> but is optional for security considerations:
> hashInitialiserValue  - The initialiser value to the hash function.
>
> Example of a hash based filter Selector, whose configuration is:
> Hash Function           = BOB
> Hash IP Payload Offset  = 0
> Hash IP Payload Size    = 16
> Hash Initialiser Value  = 0x9A3F9A3F
> Hash Output Range       = 0 to 0xFFFFFFFF
> Hash Selected Range     = 100 to 200 and 400 to 500

Thanks,
	Youki Kadobayashi
	WIDE Project

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