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draft-ietf-mpls-diff-ext-05.txt comments

  • From: Shahram Davari <Shahram_Davari@pmc-sierra.com>
  • Date: Mon, 26 Jun 2000 12:58:04 -0700
  • Cc: "'Puneet Agarwal'" <puneet@pluris.com>, "'mpls@uu.net'" <mpls@UU.NET>

Bora,

Could you please identify why/how a node could understand the Diffserv
object and the E-LSP C-type and still can't support the signaled E-LSP.

-Shahram 

>-----Original Message-----
>From: Bora Akyol [mailto:akyol@pluris.com]
>Sent: Monday, June 26, 2000 3:45 PM
>To: Shahram Davari
>Cc: 'Puneet Agarwal'; 'mpls@uu.net'
>Subject: Re: draft-ietf-mpls-diff-ext-05.txt comments
>
>
>Shahram
>Comments within.
>
>Shahram Davari wrote:
>
>> Puneet,
>>
>> Please see my comments:
>>
>
><<snipped>>
>
>> >4) pg 36, 5th paragraph: when a LSR can only support preconfigured
>> >EXP <--> PHB mapping, if someone wants to set up the per label
>> >EXP <--> PHB
>> >mapping, what error should the LSR return? Hopefully this 
>error code is
>> >different than "Diff-Serv Error" to differentiate it from invalid
>> >EXP <--> PHB mapping.
>>
>> As mentioned in section 5.3, two scenarios may exist:
>>
>> 1) In case the node only supports configured E-LSP, the node does not
>> recognize Diffserv object at all -> "Unknown Object Error"
>>
>> 2) In case the node supports configured E-LSP and L-LSP, The 
>node does not
>> recognize C-type = 1 (Signaled E-LSP) -> "Unknown Object C-type"
>>
>
>Why not have another error code for nodes that understand the 
>DS object but can
>not provide per-label context. This makes sense to me.
>
>
>>
>> Regards,
>> -Shahram
>>
>> >
>> >-Puneet
>> >
>
>