Re: Re: MPLS PWs over IP: Text for draft-ietf-pwe3-control-protocol-04.txt

W. Mark Townsley wrote:

> 
> Rahul Aggarwal wrote:
> 
>> Hi Mark,
>>
>> On Wed, 3 Dec 2003, W. Mark Townsley wrote:
>>
>>
>>> Yakov Rekhter wrote:
>>>
>>>> Here is the proposed text:
>>>>
>>>>  Procedures for setting up and maintaining the PSN tunnels with GRE
>>>>  or IP are specified in [MPLS-OVER-IP-GRE].
>>>
>>>
>>> Rahul's proposal was also to remove this text:
>>>
>>> "Procedures for setting up and maintaining the PSN tunnels are 
>>> outside the scope
>>> of this document."
>>>
>>> Which is why I said the proposal changes the scope of the document.
>>>
>>
>>
>> How about replacing
>>
>>    The PSN tunnel can itself be an LSP, but it could equally well
>>    be an IP tunnel, a GRE tunnel, an IPsec tunnel, or any other sort of
>>    tunnel which can carry MPLS packets. Procedures for setting up and
>>    maintaining the PSN tunnels are outside the scope of this document.
>>
>> with
>>
>>    The PSN tunnel can itself be an LSP, but it could equally well
>>    be an IP tunnel [MPLS-OVER-IP-GRE], a GRE tunnel [MPLS-OVER-IP-GRE],
>>    an IPsec tunnel, or any other sort of tunnel which can carry MPLS
>>    packets. Procedures for setting up and maintaining the PSN tunnels
>>    are outside the scope of this document.
> 
> 
> Better. However, *if* we are going to hit the text here turn what was a 
> set of loose and unbounded examples into a list of specific references, 
> I'd like to go ahead and add L2TPv3 as an example of "any other sort of 
> tunnel which can carry MPLS packets" and include a reference to 
> draft-townsley-l2tpv3-mpls-01.txt. For consistency, we would need to 
> reference your upcoming MPLS over IPsec encapsulation draft as well. I 
> find it arbitrary to reference some examples and not others.
> 

Or alternatively should we further de-scope the draft by removing
all specifics?

After all it's up to other WGs how we carry MPLS over IP.

Perhaps something like:

The PSN tunnel can be an LSP, but it could equally well be some
form of IP based tunnel which can carry MPLS packets. Procedures
for setting up and maintaining the PSN tunnels are outside the
scope of this document.

- Stewart

> I'm also fine with just leaving the text as is.
> 
> - Mark
> 
>>
>>
>> Thanks,
>> rahul
>>
>>
>>> - Mark
>>>
>>>
>>>
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> 
> 
> 
> 