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can egress know the ingress of a packet?

  • From: Shahram Davari <Shahram_Davari@pmc-sierra.com>
  • Date: Tue, 30 May 2000 07:26:38 -0700
  • Cc: mpls@UU.NET

Hi,

I think in CR-LDP you may use LSP-ID TLV, which will give you the tunnel
ingress and the LSP ID. And in RSVP-TE you may use the Sender Template
Object, which will give you the same information. RRO may also be used in
RSVP-TE, however you only will get the ingress LSR information that you
need, but not which LSP it is coming from.

Regards,
-Shahram

>-----Original Message-----
>From: dwilder@baynetworks.com [mailto:dwilder@baynetworks.com]
>Sent: Tuesday, May 30, 2000 10:01 AM
>To: Tan Su Wei
>Cc: mpls@UU.NET
>Subject: Re: can egress know the ingress of a packet?
>
>
>Can we use the Record route Object for this?
>
>Dave
>
>> Dear all,
>> 
>>     I'd a doubt on :
>>         In a mpls network domain, for a particular 
>ingress-egress pair
>> with multiple LSPs in between them, is it possible when a 
>packet reach
>> the engress node, the engress node will know the following:
>>         i. ) the ingress node
>>         ii.) the lsp it travel
>> 
>>         Thanks for any reply.
>> 
>> Regards
>> Tan Su Wei
>> 
>> 
>> 
>