Re: [port-srv-reg] Four final points for discussion

[Magnus Westerlund <[e-mail]>]

Joe Touch skrev 2010-09-16 18:44:
> 
> 
> On 9/16/2010 2:11 AM, Magnus Westerlund wrote:
>> Joe Touch skrev 2010-09-08 18:01:
>>>
>>>
>>> On 9/7/2010 4:14 PM, Stuart Cheshire wrote:
>>>> On 3 Sep, 2010, at 12:01, Michelle Cotton wrote:
>>>>
>>>>> I agree with all the changes below.
>>>>> Regarding the last point, can the service name aliases for future
>>>>> registrations go in the notes column?
>>>>>
>>>>> Michelle
>>>>
>>>>
>>>> I don't think there will be any future aliases.
>>>>
>>>> I don't see any reason to be allowing further creation of aliases that
>>>> add nothing except being a new name for something else that already exists.
>>>
>>> The burden falls on the owner of the port. If they want to ask for
>>> aliases, e.g., to shift from an old product name to a new one, I can't
>>> see why we would care. There is impact, but only on that port anyway.
>>> However, I'd restrict it to the owner of the port only.
>>>
>>> A good example of this would be the STUN/TURN stuff we discussed recently.
>>>
>>
>> I think we should strongly recommend against alias for the first case
>> like http and www. However STUN and TURN are not aliases, they are
>> compatible services that can co-exist on the same port. Thus I wouldn't
>> call them aliases at all.
> 
> Any time more than one string maps to the same port number it's a kind 
> of an 'alias'. The only way for the client to know the difference is via 
> in-band information.
> 
> I.e., we would allow aliases for:
> 	- different services
> 	- that can be resolved in-band
> 
> Unless BOTH of those apply, we would not allow aliases except:
> 
> 	a) legacy (www, http)
> 	b) to support changeover to the new namespace
> 

I think we are in agreement. Are the text clear enough on this in your
view. I think we can have it improved further to make the above clear.

Cheers

Magnus Westerlund

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