Appendix 1. L2TPv3 AVP Attribute Types
This appendix presents a comparison between the Attribute-Value Pair (AVP) attribute types that Cisco routers use prior to the Internet Assigned Numbers Authority (IANA) assignment of the values and the IANA assigned values. The message types in which those AVPs are present are also included (see Table A-1).
Table A-1. Comparing L2TPv3 AVP Attribute Types AVP Name Cisco AVP IETF AVP Messages |
Extended Vendor ID AVP | N/A | 58 | All messages | Message Digest | 12 | 59 | All messages | Router ID | N/A | 60 | SCCRQ, SCCRP
| Assigned Control Connection ID | 1 | 61 | SCCRQ, SCCRP, StopCCN
| Pseudowire Capabilities List | 2 | 62 | SCCRQ, SCCRP | Local Session ID | 3 | 63 | ICRQ, ICRP, ICCN, CDN, WEN, SLI
| Remote Session ID | 4 | 64 | ICRQ, ICRP, ICCN, CDN, WEN, SLI | Assigned Cookie | 5 | 65 | ICRQ, ICRP | Remote End ID | 6 | 66 | ICRQ | Application Code [Unused] | N/A | 67 | Not defined | Pseudowire Type | 7 | 68 | ICRQ | Layer 2-Specific Sublayer | Uses IETF | 69 | ICRQ, ICRP, ICCN | Data Sequencing | N/A | 70 | ICRQ, ICRP, ICCN | Circuit Status | 8 | 71 | ICRQ, ICRP, ICCN, SLI | Preferred Language | N/A | 72 | SCCRQ, SCCRP
| Control Message Authentication Nonce | 13 | 73 | SCCRQ, SCCRP | Tx Connect Speed | N/A | 74 | ICRQ, ICRP, ICCN | Rx Connect Speed | N/A | 75 | ICRQ, ICRP, ICCN | Session Tie Breaker | 9 | N/A | ICRQ | ATM Maximum Concatenated Cells | 11 | N/A | ICRQ, ICRP, SLI | OAM Emulation Required | 108 | N/A | ICRQ, ICRP, SLI | ATM Alarm Status | 109 | N/A | SLI | |
[1] IETF = Internet Engineering Task Force [2] SCCRQ = Start-Control-Connection-Request [3] SCCRP = Start-Control-Connection-Reply [4] StopCCN = Stop-Control-Connection-Notification [5] ICRQ = Incoming-Call-Request [6] ICRP = Incoming-Call-Reply [7] ICCN = Incoming-Call Connected [8] CDN = Circuit-Disconnect-Notify [9] WEN = WAN-Error-Notify [10] SLI = Set-Link-Info
You can find a complete list of L2TP registries and numbers managed by the IANA at http://www.iana.org/assignments/l2tp-parameters. |