RE: [802.21] Tomorrow's Telecon material
Qiaobing,
Inline ...
Regards,
Srini
>-----Original Message-----
>From: ext Qiaobing Xie [mailto:Qiaobing.Xie@MOTOROLA.COM]
>Sent: Thursday, March 16, 2006 3:51 PM
>To: STDS-802-21@listserv.ieee.org
>Subject: Re: [802.21] Tomorrow's Telecon material
>
>Srini,
>
>Sorry for missing your earlier question. But if only some
>transactions are time sensitive, would setting a general delay
>requirement for transport (i.e., forcing every transaction to
>pay the same cost) become a little wasteful?
Srini>Good point, not all IS queries need it. But for some instances
that need it, the transport must support it. I think the transport must
provide this capability and also ability to switch off the feature, if
there is no need.
>Moreover, IP in general is best effort network and every
>transport is at the mercey of the underneath IP layer. I don't
>know any existing mechanism that allows the sender to control
>the timeliness of delivering a packet over an IP path (the
>most a sender can do is to set the TOS bits and pray).
>The more common practice for a sender is to set a shorter
>timer if it knows that an out-going message is urgent so that
>it can engage failure handling sooner if the expected response
>does not come back from the far-end.
>
>By the way, the only time sensitive IP transport defined in
>IETF is RTP, while neither TCP or UDP is considered time sensitive.
Srini> I am not sure how this requirement will be supported. One way
would be use datagram services that don't need session setup.
>
>regards,
>-Qiaobing
>
>Srinivas Sreemanthula wrote:
>
>> Hi all,
>> I am answering to my own email. The need for timely delivery is more
>> context based than it is content based. I mean the urgency
>is known to
>> only to the requesting entity based on its current conditions and
>> therefore, setting a delay requirement for transport does make sense
>> to me.
>>
>> Regards,
>> Srini
>>
>>
>>>-----Original Message-----
>>>From: ext Srinivas Sreemanthula
>>>[mailto:Srinivas.Sreemanthula@nokia.com]
>>>Sent: Saturday, March 11, 2006 8:18 AM
>>>To: STDS-802-21@listserv.ieee.org
>>>Subject: Re: [802.21] Tomorrow's Telecon material
>>>
>>>Qiaobing,
>>>Without taking the discussion into classifying static or dynamic
>>>information... are there any time-sensitive information in our IE,
>>>now?
>>>
>>>Regards,
>>>Srini
>>>
>>>
>>>>-----Original Message-----
>>>>From: ext Qiaobing Xie [mailto:Qiaobing.Xie@motorola.com]
>>>>Sent: Friday, March 10, 2006 6:09 PM
>>>>To: Sreemanthula Srinivas (Nokia-NRC/Dallas)
>>>>Cc: STDS-802-21@listserv.ieee.org
>>>>Subject: Re: [802.21] Tomorrow's Telecon material
>>>>
>>>>....
>>>>
>>>>>whether there is need for "timely delivery of IS" or not.
>>>>
>>>>The answer depends on what content the IS is carrying. If
>the content
>>>>is time sensitive, "yes", otherwise, "no".
>>>>
>>>>regards,
>>>>-Qiaobing
>>>>
>>>>
>>>
>>
>