RFC 3209 (rfc3209) - Page 2 of 61
RSVP-TE: Extensions to RSVP for LSP Tunnels
Alternative Format: Original Text Document
RFC 3209 Extensions to RSVP for LSP Tunnels December 2001
Contents
1 Introduction .......................................... 3
1.1 Background ............................................. 4
1.2 Terminology ............................................ 6
2 Overview .............................................. 7
2.1 LSP Tunnels and Traffic Engineered Tunnels ............. 7
2.2 Operation of LSP Tunnels ............................... 8
2.3 Service Classes ........................................ 10
2.4 Reservation Styles ..................................... 10
2.4.1 Fixed Filter (FF) Style ................................ 10
2.4.2 Wildcard Filter (WF) Style ............................. 11
2.4.3 Shared Explicit (SE) Style ............................. 11
2.5 Rerouting Traffic Engineered Tunnels ................... 12
2.6 Path MTU ............................................... 13
3 LSP Tunnel related Message Formats ..................... 15
3.1 Path Message ........................................... 15
3.2 Resv Message ........................................... 16
4 LSP Tunnel related Objects ............................. 17
4.1 Label Object ........................................... 17
4.1.1 Handling Label Objects in Resv messages ................ 17
4.1.2 Non-support of the Label Object ........................ 19
4.2 Label Request Object ................................... 19
4.2.1 Label Request without Label Range ...................... 19
4.2.2 Label Request with ATM Label Range ..................... 20
4.2.3 Label Request with Frame Relay Label Range ............. 21
4.2.4 Handling of LABEL_REQUEST .............................. 22
4.2.5 Non-support of the Label Request Object ................ 23
4.3 Explicit Route Object .................................. 23
4.3.1 Applicability .......................................... 24
4.3.2 Semantics of the Explicit Route Object ................. 24
4.3.3 Subobjects ............................................. 25
4.3.4 Processing of the Explicit Route Object ................ 28
4.3.5 Loops .................................................. 30
4.3.6 Forward Compatibility .................................. 30
4.3.7 Non-support of the Explicit Route Object ............... 31
4.4 Record Route Object .................................... 31
4.4.1 Subobjects ............................................. 31
4.4.2 Applicability .......................................... 34
4.4.3 Processing RRO ......................................... 35
4.4.4 Loop Detection ......................................... 36
4.4.5 Forward Compatibility .................................. 37
4.4.6 Non-support of RRO ..................................... 37
4.5 Error Codes for ERO and RRO ............................ 37
4.6 Session, Sender Template, and Filter Spec Objects ...... 38
4.6.1 Session Object ......................................... 39
4.6.2 Sender Template Object ................................. 40
4.6.3 Filter Specification Object ............................ 42
Awduche, et al. Standards Track
