Re: ASP active procedure

For ASP UP ACK only, this scenario is possible only in the single
exchange mode with traffic share mode .

If we use double exchange then further messages like ASP ACT from both
side is expected including ACK also apart from ASPUP.

if still not clear please re introduce the problem again and RFC line
where you have any doubt.

Cheers
-arif






On 1/4/11, Anand N Ilkal <[email protected]> wrote:
> Hello Deepak,
>
> I understand that there needs to be local check whether stack is ready to
> receive traffic for that routing key.
>
> lets assume all those scenarios are satisfied. and i am pretty sure that
> when RFC says MAY, it has taken all these cases into account (for example
> you can read from NOTIFY procedures - for NOTIFY to be sent, lot of
> conditions needs to be satisfied - like n number of ASP's being active. Yet
> RFC uses the words like MUST or SHOULD) .
>
> If traffic modes are to be taken into account, what should act as trigger
> for sending ASP Active message from a perticular ASP?
>
> Hence my opinion is ASP Up Ack is only a sufficient condition, where-as
> NOTIFY from peer acts as necessary condition.
> can any comment on that?
>
> On 4 January 2011 14:01, arif khan <[email protected]> wrote:
>
>> Implementation logic is ok in their own context ...........
>> But ASP can process the TRAFFIC message only after the ASP ACT ACK
>> received from the NW and local side ASP with the remote ASP change
>> their state and becomes ready to process the TRAFFIC.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On 1/4/11, Deepak Gunjal <[email protected]> wrote:
>> > As per my opinion the ASP ACTIVE is triggered after the reception of ASP
>> UP
>> > ACK only but the trigger point may not be immediate. The trigger point
>> can
>> > be an indication from high availability framework; it could be some
>> > application logic which once determines via local procedures that it is
>> > ready to process the application traffic from network can initiate ASP
>> > ACTIVE to SGP.
>> >
>> > Regards
>> > Deepak
>> >
>> > ________________________________
>> > From: [email protected] [mailto:[email protected]] On
>> Behalf
>> > Of Anand N Ilkal
>> > Sent: Tuesday, January 04, 2011 1:22 PM
>> > To: [email protected]
>> > Subject: [Sigtran] ASP active procedure
>> >
>> > Hello,
>> >
>> > i have doubt regarding the following section is RFC 4666  -
>> > 4.3.4.3.  ASP Active Procedures
>> >
>> >    Anytime after the ASP has received an ASP Up Ack message from the SGP
>> >    or IPSP, the ASP MAY send an ASP Active message to the SGP,
>> >    indicating that the ASP is ready to start processing traffic....
>> >
>> > 1. why ASP MAY chose not to send ASP active on receipt of ASP Up Ack?
>> > 2. is receipt of ASP Up Ack message is treated as sufficient condition,
>> > whereas there is a necessary condition which should be satisfied so as
>> ASP
>> > active message is sent? if so, what is that condition?
>> >
>> > --
>> > with regards,
>> > Anand kumar Ilkal
>> >
>> > ________________________________
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>
>
>
> --
> with regards,
> Anand kumar Ilkal
>