If we want to remove text that is not strictly protocol related, I'll then 
suggest we take the entire section 8.4 and the Appendix C out.

  - Alain.


On Aug 12, 2010, at 10:09 AM, Ralph Droms wrote:

> I think a lot of the text in section 8.4.1 is a matter of opinion or 
> speculation; perhaps it would be better to describe the pros and cons of 
> dynamic and fixed port assignment without making a recommendation before we 
> have much deployment experience.
> 
> - Ralph
> 
> On Aug 11, 2010, at 6:50 PM 8/11/10, Alain Durand wrote:
> 
>> 
>> On Aug 11, 2010, at 6:00 PM, Ralph Droms wrote:
>> 
>>> 
>>>> 2. If the number of assignable IPv4 addresses is for a start multiplied by 
>>>> 10, by statically sharing ports of each address among 10 customers, this 
>>>> still leaves several thousands of IPv4 ports per customer. (Exactly 6144 
>>>> ports per customer if, as appropriate, the first 4K ports, that include 
>>>> well-known ports and have special value are excluded). 
>>> 
>>> Agreed; one could argue that even sharing an IPv4 address among 5 customers 
>>> allows 5x as many customers in the existing IPv4 address assignment, which 
>>> should be more than enough to bridge the gap until IPv6 is available.
>> 
>> The later part of this comment is IMHO a matter of opinion...
>> It is very hard to know for sure how much IPv4 translation will be needed in 
>> the feature.
> 
> 
> 
>> The major issue with any scheme that allocates a fixed number of ports is 
>> what do you do when that number is exhausted?
>> How do you even know this is happening? This may or may bot be an issue if 
>> we are talking about 10k ports per customers,
>> but as pressure mounts on the IPv4 space and the address compression ratio 
>> need to be increased, you soon end-up with much less ports per customers. 
>> And then what?
>> 
>> 
>>>> 3. Where applicable static sharing is much simpler to operate.
>>> 
>>> Agreed.
>> 
>> Logs can indeed be simpler to manage, sure. But this is a trade-off. Other 
>> parts of the systems are more complex, see above.
>> 
>> All this being said, the discussion of the advantages or inconvenients of 
>> A+B belong  to the A+P mailing list.
>> 
>>   - Alain.
>> _______________________________________________
>> Softwires mailing list
>> [email protected]
>> https://www.ietf.org/mailman/listinfo/softwires
> 

_______________________________________________
Softwires mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/softwires

Reply via email to