The MPLS WG Archive

["LE ROUX Jean-Louis RD-CORE-LAN" <jeanlouis.leroux@orange-ft.com>]

Hi Rahul,

One minor point,


> 
> "IPv4 tunnel sender address. This address MUST be the same as 
> the address in the Extended Tunnel ID field of the SESSION
>object."

This is not inlined with the FRR sender-template specific method.
You should remove the second sentence.

Regards,

JL




> -----Message d'origine-----
> De : Rahul Aggarwal [mailto:rahul@juniper.net] 
> Envoyé : jeudi 22 juin 2006 20:18
> À : mpls@ietf.org; Yakov Rekhter
> Cc : fenner@research.att.com; ccamp; rcallon@juniper.net
> Objet : [mpls] Identifier Semantics [Re: working group last 
> call ondraft-ietf-mpls-rsvp-te-p2mp-05.txt]
> 
> 
> Hi Folks,
> 
> Yakov brought up the issue of P2MP ID, Tunnel ID, Extended 
> Tunnel ID semantics as part of the last call and a discussion 
> followed on this list.
> 
> In order to resolve this discussion I had proposed some text. 
> I have received some comments on this offline and want to 
> move this discussion to a broader audience.
> 
> Please comment on the text changes below, if you have 
> objections or suggestions. Else this will be incorporated in 
> the next version of the spec.
> 
> How about the following rephrasing:
> 
> 1.
> 
> Section 4.1:
> 
> " A P2MP TE Tunnel comprises one or more P2MP LSPs. A P2MP TE 
> Tunnel is
>    identified by a P2MP SESSION object. This object contains the
>    identifier of the P2MP Session which includes the P2MP ID, a tunnel
>    ID and an extended tunnel ID.
> 
>    The fields of a P2MP SESSION object are identical to those of the
>    SESSION object defined in [RFC3209] except that the Tunnel Endpoint
>    Address field is replaced by the P2MP Identifier (P2MP ID) field.
> 
>    The P2MP ID provides an identifier for the set of 
> destinations of the
>    P2MP TE Tunnel."
> 
> to
> 
> " A P2MP TE Tunnel comprises one or more P2MP LSPs. A P2MP TE 
> Tunnel is identified by a P2MP SESSION object. This object 
> contains the identifier of the P2MP Session which includes a 
> tuple <Ingress LSR IP address, P2MP Identifier>, where the 
> P2MP Identifier (P2MP
> ID) is unique within the scope of the IP address of the 
> ingress LSR. The Ingress LSR IP address is encoded in the 
> Extended Tunnel ID. Th P2MP Tunnel identifier, carried in the 
> P2MP SESSION object, is unique within the same scope as the 
> ingress LSR IP address.
> 
> The fields of the P2MP SESSION object are identical to those 
> of the SESSION object defined in [RFC3209] except that the 
> Tunnel Endpoint Address field is replaced by the P2MP ID field."
> 
> 2.
> 
> Section 4.2.
> 
> "   A P2MP LSP is identified by the combination of the P2MP ID, Tunnel
>    ID, and Extended Tunnel ID that are part of the P2MP 
> SESSION object,
>    and the tunnel sender address and LSP ID fields of the P2MP
>    SENDER_TEMPLATE object. The new P2MP SENDER_TEMPLATE object is
>    defined in section 20.2."
> 
> to
> 
> "   A P2MP LSP is identified by the combination of the P2MP ID,
> Extended Tunnel ID that are part of the P2MP SESSION object, 
> and the tunnel sender address and LSP ID fields of the P2MP 
> SENDER_TEMPLATE object. The new P2MP SENDER_TEMPLATE object 
> is defined in section 20.2."
> 
> 3.
> 
> 19.1.1
> 
> "P2MP ID
> 
>       A 32-bit identifier used in the SESSION object that remains
>       constant over the life of the P2MP tunnel. It encodes the
>       P2MP ID and identifies the set of destinations of the P2MP
>       Tunnel."
> 
> to
> 
> "P2MP ID
> 
>       A 32-bit identifier used in the SESSION object that remains
>       constant over the life of the P2MP tunnel. It encodes the
>       P2MP Identifier that is unique within the scope of the 
> Ingress LSR
>       IP address carried in the Extended Tunnel ID.
> 
> 4.
> 19.1.1
> 
> "Tunnel ID
> 
>       A 16-bit identifier used in the SESSION object that remains
>       constant over the life of the P2MP tunnel."
> 
> to
> 
> "Tunnel ID
> 
>       A 16-bit identifier used in the SESSION object that remains
>       constant over the life of the P2MP tunnel. It SHOULD be set to 0
>       by the ingress LSR and be ignored on receipt."
> 
> 
> 5.
> 
> "Extended Tunnel ID
> 
>  A 32-bit identifier used in the SESSION object that remains
>       constant over the life of the P2MP tunnel.  Normally set to
>       all zeros. Ingress nodes that wish to narrow the scope of a
>       SESSION to the ingress-PID pair may place their IPv4 address
>       here as a globally unique identifier [RFC3209]."
> 
> to
> 
> "Extended Tunnel ID
> 
>       A 32-bit identifier used in the SESSION object that remains
>       constant over the life of the P2MP tunnel. This identifier
>       MUST be set to the ingress LSR's IPv4 address."
> 
> 6.
> 
> 19.1.2
> 
> "This is same as the P2MP IPv4 LSP SESSION Object with the difference
>    that the extended tunnel ID may be set to a 16 byte identifier
>    [RFC3209]."
> 
> to
> 
> "This is same as the P2MP IPv4 LSP SESSION Object with the difference
>    that the extended tunnel ID MUST be set to a 16 byte 
> identifier that is the ingress LSR's IPv6 address."
> 
> 7.
> 
> 19.2.1
> 
> " IPv4 tunnel sender address
>             See [RFC3209]"
> 
> to"
> 
> "IPv4 tunnel sender address. This address MUST be the same as 
> the address in the Extended Tunnel ID field of the SESSION object."
> 
> 8.
> 
> 19.2.2
> 
> "IPv6 tunnel sender address
>            See [RFC3209]"
> 
> to
> 
> "IPv6 tunnel sender address. This address MUST be the same as 
> the address in the Extended Tunnel ID field of the SESSION object."
> 
> Thanks,
> rahul
> 
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> 

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