分类： 系统运维
2007-09-26 00:15:18
3. LSP Tunnel related Message Formats
//LSP隧道相关消息格式
Five new objects are defined in this section:
Object name Applicable RSVP messages
--------------- ------------------------
LABEL_REQUEST Path
LABEL Resv
EXPLICIT_ROUTE Path
RECORD_ROUTE Path, Resv
SESSION_ATTRIBUTE Path
New C-Types are also assigned for the SESSION, SENDER_TEMPLATE, and
FILTER_SPEC, objects.
Detailed descriptions of the new objects are given in later sections.
All new objects are OPTIONAL with respect to RSVP. An implementation
can choose to support a subset of objects. However, the
LABEL_REQUEST and LABEL objects are mandatory with respect to this
specification.
//对以上新对象的描述，将在后续章节中给出。这些新对象对RSVP都是可选的。
//一个实现可以选择支持这些对象的子集。此外，LABEL_REQUEST和LABEL对象
//对本文档(或RSVP-TE)而言是必须支持的。
The LABEL and RECORD_ROUTE objects, are sender specific. In Resv
messages they MUST appear after the associated FILTER_SPEC and prior
to any subsequent FILTER_SPEC.
//LABEL和RRO对象，与sender有关。它们必须出现在相关的FILTER_SPEC对象后
//且在其他FILTER_SPEC对象之前，当然，是在RESV消息中。
The relative placement of EXPLICIT_ROUTE, LABEL_REQUEST, and
SESSION_ATTRIBUTE objects is simply a recommendation. The ordering
of these objects is not important, so an implementation MUST be
prepared to accept objects in any order.
//ERO，LABEL_REQUEST和SESSION_ATTRIBUTE的位置只是一个建议。这些对象的
//顺序不重要，因此一个实现必须准备好以任何顺序接收这些对象。
3.1. Path Message
The format of the Path message is as follows:
//PATH消息的格式如下：
[
[
Awduche, et al. Standards Track [Page 15]
RFC 3209 Extensions to RSVP for LSP Tunnels December 2001
[
[
[
3.2. Resv Message
The format of the Resv message is as follows:
[
[
