| < draft-dolly-sipping-config-content-00.txt | draft-dolly-sipping-config-content-01.txt > | |||
|---|---|---|---|---|
| SIPPING M. Dolly | SIPPING M. Dolly | |||
| Internet-Draft AT&T Labs | Internet-Draft AT&T Labs | |||
| Expires: November 9, 2004 May 11, 2004 | Expires: January 13, 2005 July 15, 2004 | |||
| Data Content for SIP User Agent Profile Delivery | Data Content for SIP User Agent Profile Delivery | |||
| draft-dolly-sipping-config-content-00.txt | draft-dolly-sipping-config-content-01.txt | |||
| Status of this Memo | Status of this Memo | |||
| This document is an Internet-Draft and is in full conformance with | This document is an Internet-Draft and is in full conformance with | |||
| all provisions of Section 10 of RFC2026. | all provisions of Section 10 of RFC2026. | |||
| Internet-Drafts are working documents of the Internet Engineering | Internet-Drafts are working documents of the Internet Engineering | |||
| Task Force (IETF), its areas, and its working groups. Note that | Task Force (IETF), its areas, and its working groups. Note that other | |||
| other groups may also distribute working documents as | groups may also distribute working documents as Internet-Drafts. | |||
| Internet-Drafts. | ||||
| Internet-Drafts are draft documents valid for a maximum of six months | Internet-Drafts are draft documents valid for a maximum of six months | |||
| and may be updated, replaced, or obsoleted by other documents at any | and may be updated, replaced, or obsoleted by other documents at any | |||
| time. It is inappropriate to use Internet-Drafts as reference | time. It is inappropriate to use Internet-Drafts as reference | |||
| material or to cite them other than as "work in progress." | material or to cite them other than as "work in progress." | |||
| The list of current Internet-Drafts can be accessed at | The list of current Internet-Drafts can be accessed at http:// | |||
| http://www.ietf.org/ietf/1id-abstracts.txt. | www.ietf.org/ietf/1id-abstracts.txt. | |||
| The list of Internet-Draft Shadow Directories can be accessed at | The list of Internet-Draft Shadow Directories can be accessed at | |||
| http://www.ietf.org/shadow.html. | http://www.ietf.org/shadow.html. | |||
| This Internet-Draft will expire on November 9, 2004. | This Internet-Draft will expire on January 13, 2005. | |||
| Copyright Notice | Copyright Notice | |||
| Copyright (C) The Internet Society (2004). All Rights Reserved. | Copyright (C) The Internet Society (2004). All Rights Reserved. | |||
| Abstract | Abstract | |||
| This document defines the data content for providing profile data to | This document defines the data content for providing profile data to | |||
| SIP user agents in support of the framework defined in | SIP user agents in support of the framework defined in | |||
| I-D.ietf-sipping-config-framework-02.txt. | I-D.ietf-sipping-config-framework-03.txt and is intended to be input | |||
| to the data sets defined by | ||||
| The profile content format will be defined in a later version of this | draft-petrie-sipping-profile-datasets-00.txt.. | |||
| document or in a separate document. | ||||
| Conventions used in this document | Conventions used in this document | |||
| RFC2119 [1] provides the interpretations for the key words "MUST", | RFC2119 [1] provides the interpretations for the key words "MUST", | |||
| "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", | "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", | |||
| "RECOMMENDED", "MAY", and "OPTIONAL" found in this document. | "RECOMMENDED", "MAY", and "OPTIONAL" found in this document. | |||
| I-D.ietf-sipping-config-framework-02.txt [6] provides the | I-D.ietf-sipping-config-framework-02.txt [6] provides the | |||
| interpretations for the terms "profile", "device", "profile content | interpretations for the terms "profile", "device", "profile content | |||
| server", "notifier", and "profile delivery server". | server", "notifier", and "profile delivery server". | |||
| Table of Contents | Table of Contents | |||
| 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 | 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 | |||
| 2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 | 2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 | |||
| 3. Data Content . . . . . . . . . . . . . . . . . . . . . . . . . 3 | 3. Data Content . . . . . . . . . . . . . . . . . . . . . . . . . 3 | |||
| 3.1 User Data . . . . . . . . . . . . . . . . . . . . . . . . 3 | 4. Data Set Examples . . . . . . . . . . . . . . . . . . . . . . 6 | |||
| 3.2 Device Data . . . . . . . . . . . . . . . . . . . . . . . 4 | 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6 | |||
| 3.3 Environment Data . . . . . . . . . . . . . . . . . . . . . 4 | 6. Security Considerations . . . . . . . . . . . . . . . . . . . 6 | |||
| 4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 | 7. Open Issues . . . . . . . . . . . . . . . . . . . . . . . . . 7 | |||
| 5. Security Considerations . . . . . . . . . . . . . . . . . . . 4 | 8. Change History . . . . . . . . . . . . . . . . . . . . . . . . 7 | |||
| 6. Open Issues . . . . . . . . . . . . . . . . . . . . . . . . . 5 | 9. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 | |||
| 7. Change History . . . . . . . . . . . . . . . . . . . . . . . . 5 | 10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 7 | |||
| 8. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 | 10.1 Normative References . . . . . . . . . . . . . . . . . . . . 7 | |||
| 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 5 | 10.2 Informative References . . . . . . . . . . . . . . . . . . . 7 | |||
| 9.1 Normative References . . . . . . . . . . . . . . . . . . . . 5 | Author's Address . . . . . . . . . . . . . . . . . . . . . . . 8 | |||
| 9.2 Informative References . . . . . . . . . . . . . . . . . . . 6 | A. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 8 | |||
| Author's Address . . . . . . . . . . . . . . . . . . . . . . . 6 | B. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 8 | |||
| A. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 6 | Intellectual Property and Copyright Statements . . . . . . . . 9 | |||
| B. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 6 | ||||
| Intellectual Property and Copyright Statements . . . . . . . . 7 | ||||
| 1. Introduction | 1. Introduction | |||
| This document defines the data content for providing profile data to | This document defines the data content for providing profile data to | |||
| SIP user agents in support of the framework defined in | SIP user agents in support of the framework defined in | |||
| I-D.ietf-sipping-config-framework-02.txt [6]. The current framework | I-D.ietf-sipping-config-framework-02.txt [6]. The current framework | |||
| draft identifies two types of profiles, defined as "user" and | draft identifies two types of profiles, defined as "user" and | |||
| "device". It is anticipated, per discussion at the previous meeting, | "device". It is anticipated, per discussion at the previous meeting, | |||
| that the draft 03 version will define a profile for "environment". | that the draft 03 version will define a profile for "local". | |||
| The profile delivery framework is intended to enable a first phase | The profile delivery framework is intended to enable a first phase | |||
| migration to a standard means of providing profiles to SIP user | migration to a standard means of providing profiles to SIP user | |||
| agents. It is expected that UA vendors willbe able to use this | agents. It is expected that UA vendors willbe able to use this | |||
| framework as a means of delivering their existing proprietary user | framework as a means of delivering their existing proprietary user | |||
| and device data profiles. | and device data profiles. | |||
| 2. Overview | 2. Overview | |||
| The three types of content to be defined are user, device and | The three types of content to be defined are user, device and local. | |||
| environment. The profile delivery server will provide the content or | The profile delivery server will provide the content or URI(s) | |||
| URI(s) associated with the user and device profiles. The environment | associated with the user and device profiles. The local profile is | |||
| profile is optional and its content will be provided by the local | optional and its content will be provided by the local domain serving | |||
| domain serving the SIP User Agent. | the SIP User Agent. | |||
| The content of the device profile is a function of the vnedor, model, | The content of the device profile is a function of the vendor, model, | |||
| and version parameters associted with the device, whoch are specified | and version parameters associted with the device, which are specified | |||
| by the vendor of the user agent. THese parameters allow the profile | by the vendor of the user agent. These parameters allow the profile | |||
| delivery server to provide different profiles based upon these | delivery server to provide different profiles based upon these | |||
| variables. | variables. | |||
| As noted in the framework, a default user maybe assigned to a device. | As noted in the framework, a default user maybe assigned to a device. | |||
| In this scenario the profile delivery server may provide the URI(s) | In this scenario the profile delivery server may provide the URI(s) | |||
| in the NOTIFY request for the default user when subscribing to the | in the NOTIFY request for the default user when subscribing to the | |||
| device profile type. Effectively the device profile type becomes a | device profile type. Effectively the device profile type becomes a | |||
| superset of the user profile subscription. The user type is still | superset of the user profile subscription. The user type is still | |||
| useful in this scenario to allow the user agent to obtain profile | useful in this scenario to allow the user agent to obtain profile | |||
| data or URI(s) for a user other than the default user. This provides | data or URI(s) for a user other than the default user. This provides | |||
| the ability to support a hoteling function where a user may "login" | the ability to support a hoteling function where a user may "login" | |||
| to a local domain and obtain the content of the environment profile. | to a local domain and obtain the content of the local profile. | |||
| 3. Data Content | 3. Data Content | |||
| The contributor WILL provide descriptive text for the content items | The data content list below is intended as input into the datasets to | |||
| in the next revision. | be defined in draft-petrie-sipping-profile-datasets-00.txt. | |||
| 3.1 User Data | The local data may be inputted by the subscriber or the local access | |||
| domain. | ||||
| Elements of the User Data include: | Elements of the User Data include: | |||
| Proxy and Registration Server URIs | -- Proxy and Registration Server URIs - IP addresses of the | |||
| Preloaded Route Sets | primary SIP proxyand registration servers that will be used. | |||
| User Address of Record and Display Name | (address format is the in IP dotted-decimal notation) | |||
| User Authentication Information and Other Credentials | ||||
| Privacy Settings | ||||
| Pre Media Configuration Parameters (e.g., Audio Configuration) | ||||
| Dial Plan | ||||
| Progess Tone Settings | ||||
| ENUM Settings | ||||
| International Settings | ||||
| Call Forwarding and Redirection Settings | ||||
| Speed Dial Settings | ||||
| Local Control Feature Settings (e.g., transfer, conference) | ||||
| Alert Settings, including pre-caller alerting | ||||
| URIs and timers for additional profile configuration | ||||
| Logging Settings | ||||
| 3.2 Device Data | --Preloaded Route Set | |||
| Elements of the Device Data include: | -- User Address of Record and Display Name - A user'sline | |||
| represents an address-of-record identified by a URL There are many | ||||
| properties which may be associated with or should be applied to | ||||
| the line or signaling addressed to or from the line. The display | ||||
| name is the identifiation as it should appear for the Caller ID | ||||
| associated with the user. | ||||
| Firmware Upgrade | -- User Authentication Information and Other Credentials - | |||
| SIP Timer Values | Authentication name - name used by the device for authenication | |||
| Response Status Code Handling | if a registration is challenged. | |||
| RTP Parameters | Authenication Password - Password used by the device for | |||
| SDP Payload Types | athentication. The device may have a default logical password | |||
| Audio Configurations | (e.g., MAC IP address). | |||
| Firewall and NAT Support Parameters | ||||
| Manual Network Addressing | ||||
| Local Administration Settings | ||||
| 3.3 Environment Data | -- Privacy Settings - calling party presentation restriction. | |||
| The environment data may be inputed by the subscriber or the local | -- Pre Media Configuration Parameters (e.g., Audio Configuration) | |||
| access domain. | ||||
| 4. IANA Considerations | -- Dial Plan - A dial plan which defines the maximum expected | |||
| length of a typical telephone. Zero or more digit maps that map a | ||||
| dial plan and a SIP address to which phone numbers of the type | ||||
| should be routed. The digit maps define numeric patterns that when | ||||
| matched define: | ||||
| 1) a rule by which the end point has to judge that the user has | ||||
| completed dialing; | ||||
| 2) a rule to construct a URL from the dialed digits; | ||||
| 3) Optionally, an outbound proxy to be used in routing the SIP | ||||
| INVITE. | ||||
| Note: Intra-Digit and Howler tone timers are associated with | ||||
| the dial plan. | ||||
| The end point must support the configuration of a default digit | ||||
| map. | ||||
| Some operators support overlap dialing and may want the SIP | ||||
| device to operate in that mode. | ||||
| -- Progess Tone Settings - These include confirmation, reorder, | ||||
| and "ring-ping" type tones. | ||||
| -- ENUM Settings - IP address and port address of ENUM server. | ||||
| -- International Settings - This may include language preference, | ||||
| and default server addreses. | ||||
| -- Call Forwarding and Redirection Settings - contains the forward | ||||
| to/redirection addresses, conditions of forwarding/redirection, | ||||
| and methiods used to forward/redirect. | ||||
| -- Speed Dial Settings - users speed dial numbers and associated | ||||
| device keys. | ||||
| -- Local Control Feature Settings (e.g., transfer, conference) - | ||||
| -- Alert Settings, including pre-caller alerting - The manner in | ||||
| which a user is alerted to an incoming call (visually, audibly, or | ||||
| possibly both) used by a device. This includes different volumes | ||||
| and melodies. There may be a pointer to a file to obtain the | ||||
| melody. Ringer sound files may be specified to alert the user to | ||||
| the type of incoming call (e.g., normal, high priority, internal, | ||||
| external). | ||||
| -- URIs and timers for additional profile configuration - contains | ||||
| URIs of functional specific servers (e.g., Voice Mail, Phonebook, | ||||
| Directory). | ||||
| -- Logging Settings | ||||
| -- Firmware Upgrade | ||||
| -- Response Status Code Handling - mapping of response status | ||||
| codes to device final handling treatment (e.g., tones and | ||||
| annoucements). | ||||
| -- Protocol Data Sets - Contains SIP extensions, body types, | ||||
| transport protocols (UDP, TCP, TLS, SCTP) or external protocols | ||||
| (e.g., http) that need to be supported. | ||||
| -- Media Data Set - This includes Codec DATA set, maximum number | ||||
| of streams, allowed bandwidth per stream, IPaddresses/ports, etc. | ||||
| -- RTP Parameters | ||||
| RTP Port Range - A range of port numbers used by a device for | ||||
| the consecutive pairs of ports that are used to receive audio | ||||
| and ontrol information (RTP and RCTP) for each concurrent | ||||
| connection. | ||||
| -- SDP Payload Types | ||||
| -- Audio Configurations | ||||
| -- Firewall and NAT Support Parameters | ||||
| NAT Address - WAN IP address of the NAT or firewall server. A | ||||
| network address (such as an IP address) used by a device to | ||||
| make calls through a NAT. The device includes this IP address | ||||
| in the SIP messages and SDP it sends to the other SIP agents to | ||||
| indicate that this is the adddress to which SIP, RTP, and RTCP | ||||
| packets are be sent. This supports the case where the NAT is | ||||
| configured to statically map specific ports on hte external | ||||
| interface to a specific end point in side the NAT. The end | ||||
| point in turn is configured to spoof other SIP entities into | ||||
| thinking it is the external interface on the NAT. | ||||
| Manual Network Addressing | ||||
| Local Administration Settings | ||||
| 4. Data Set Examples | ||||
| Telephony Prompts, Tones and Final Handling: | ||||
| Audio Configurations | ||||
| Alert Settings | ||||
| International Settings (or at least tones) | ||||
| Progess Tone Settings | ||||
| Pre Media Configuration Parameters | ||||
| Response Status Code Handling | ||||
| 5. IANA Considerations | ||||
| This document introduces no requirements for IANA. | This document introduces no requirements for IANA. | |||
| 5. Security Considerations | 6. Security Considerations | |||
| Profiles may contain sensitive data such as user credentials. The | Profiles may contain sensitive data such as user credentials. The | |||
| protection of this data depends upon how the data is delivered. If | protection of this data depends upon how the data is delivered. If | |||
| the data is delivered in the NOTIFY body, SIP authentication MUST be | the data is delivered in the NOTIFY body, SIP authentication MUST be | |||
| used for SUBSCRIPTION and SIPS and/or S/MIME MAY be used to encrypt | used for SUBSCRIPTION and SIPS and/or S/MIME MAY be used to encrypt | |||
| the data. If the data is provided via content indirection, SIP | the data. If the data is provided via content indirection, SIP | |||
| authentication is not necessary for the SUBSCRIBE request. With | authentication is not necessary for the SUBSCRIBE request. With | |||
| content indirection the data is protected via the authentication, | content indirection the data is protected via the authentication, | |||
| authorization and encryption mechanisms provided by the profile URL | authorization and encryption mechanisms provided by the profile URL | |||
| scheme. Use of the URL scheme security mechanisms via content | scheme. Use of the URL scheme security mechanisms via content | |||
| indirection simpifies the security solution as the SIP event package | indirection simpifies the security solution as the SIP event package | |||
| does not need to authenticate, authorize or protect the contents of | does not need to authenticate, authorize or protect the contents of | |||
| the SIP messages. Effectively the profile delivery server will | the SIP messages. Effectively the profile delivery server will | |||
| provide profile URL(s) to anyone. The URLs themselves are protected | provide profile URL(s) to anyone. The URLs themselves are protected | |||
| via authentication, authorization and snooping (e.g., via HTTPS). | via authentication, authorization and snooping (e.g., via HTTPS). | |||
| 6. Open Issues | 7. Open Issues | |||
| This section identifies issues yet to be addressed. | This section identifies issues yet to be addressed. | |||
| 7. Change History | 8. Change History | |||
| This section identifies changes to the document per draft revision. | This section identifies changes to the document per draft revision. | |||
| 8. Examples | 9. Examples | |||
| This section is informative in nature. If there is a discrepancy | This section is informative in nature. If there is a discrepancy | |||
| between this section and the normative sections above, the normative | between this section and the normative sections above, the normative | |||
| sections take precedence. | sections take precedence. | |||
| 9. References | 10. References | |||
| 9.1 Normative References | 10.1 Normative References | |||
| [1] Bradner, S., "Key words for use in RFCs to Indicate Requirement | [1] Bradner, S., "Key words for use in RFCs to Indicate Requirement | |||
| Levels", BCP 14, RFC 2119, March 1997. | Levels", BCP 14, RFC 2119, March 1997. | |||
| [2] Murata, M., St. Laurent, S. and D. Kohn, "XML Media Types", RFC | [2] Murata, M., St. Laurent, S. and D. Kohn, "XML Media Types", RFC | |||
| 3023, January 2001. | 3023, January 2001. | |||
| [3] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., | [3] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., | |||
| Peterson, J., Sparks, R., Handley, M. and E. Schooler, "SIP: | Peterson, J., Sparks, R., Handley, M. and E. Schooler, "SIP: | |||
| Session Initiation Protocol", RFC 3261, June 2002. | Session Initiation Protocol", RFC 3261, June 2002. | |||
| [4] Roach, A., "Session Initiation Protocol (SIP)-Specific Event | [4] Roach, A., "Session Initiation Protocol (SIP)-Specific Event | |||
| Notification", RFC 3265, June 2002. | Notification", RFC 3265, June 2002. | |||
| [5] Daigle, L., van Gulik, D., Iannella, R. and P. Faltstrom, | [5] Daigle, L., van Gulik, D., Iannella, R. and P. Faltstrom, | |||
| "Uniform Resource Names (URN) Namespace Definition Mechanisms", | "Uniform Resource Names (URN) Namespace Definition Mechanisms", | |||
| BCP 66, RFC 3406, October 2002. | BCP 66, RFC 3406, October 2002. | |||
| 9.2 Informative References | 10.2 Informative References | |||
| [6] Petrie, D., "A Framework for SIP User Agent Profile Delivery", | [6] Petrie, D., "A Framework for SIP User Agent Profile Delivery", | |||
| draft-ietf-sipping-config-framework-02.txt (work in progress), | draft-ietf-sipping-config-framework-02.txt (work in progress), | |||
| February 2004. | February 2004. | |||
| [7] Rosenberg, J., "Obtaining and Using Globally Routable User | [7] Rosenberg, J., "Obtaining and Using Globally Routable User | |||
| Agent (UA) URIs (GRUU) in the Session Initiation Protocol | Agent (UA) URIs (GRUU) in the Session Initiation Protocol | |||
| (SIP)", draft-ietf-sip-gruu-01 (work in progress), February | (SIP)", draft-ietf-sip-gruu-01 (work in progress), February | |||
| 2004. | 2004. | |||
| skipping to change at page 7, line 12 ¶ | skipping to change at page 9, line 12 ¶ | |||
| Thanks to Eric Burger on the use of the XML tools. | Thanks to Eric Burger on the use of the XML tools. | |||
| Intellectual Property Statement | Intellectual Property Statement | |||
| The IETF takes no position regarding the validity or scope of any | The IETF takes no position regarding the validity or scope of any | |||
| intellectual property or other rights that might be claimed to | intellectual property or other rights that might be claimed to | |||
| pertain to the implementation or use of the technology described in | pertain to the implementation or use of the technology described in | |||
| this document or the extent to which any license under such rights | this document or the extent to which any license under such rights | |||
| might or might not be available; neither does it represent that it | might or might not be available; neither does it represent that it | |||
| has made any effort to identify any such rights. Information on the | has made any effort to identify any such rights. Information on the | |||
| IETF's procedures with respect to rights in standards-track and | IETF's procedures with respect to rights in standards-track and | |||
| standards-related documentation can be found in BCP-11. Copies of | standards-related documentation can be found in BCP-11. Copies of | |||
| claims of rights made available for publication and any assurances of | claims of rights made available for publication and any assurances of | |||
| licenses to be made available, or the result of an attempt made to | licenses to be made available, or the result of an attempt made to | |||
| obtain a general license or permission for the use of such | obtain a general license or permission for the use of such | |||
| proprietary rights by implementors or users of this specification can | proprietary rights by implementors or users of this specification can | |||
| be obtained from the IETF Secretariat. | be obtained from the IETF Secretariat. | |||
| The IETF invites any interested party to bring to its attention any | The IETF invites any interested party to bring to its attention any | |||
| copyrights, patents or patent applications, or other proprietary | copyrights, patents or patent applications, or other proprietary | |||
| rights which may cover technology that may be required to practice | rights which may cover technology that may be required to practice | |||
| this standard. Please address the information to the IETF Executive | this standard. Please address the information to the IETF Executive | |||
| Director. | Director. | |||
| Full Copyright Statement | Full Copyright Statement | |||
| Copyright (C) The Internet Society (2004). All Rights Reserved. | Copyright (C) The Internet Society (2004). All Rights Reserved. | |||
| This document and translations of it may be copied and furnished to | This document and translations of it may be copied and furnished to | |||
| others, and derivative works that comment on or otherwise explain it | others, and derivative works that comment on or otherwise explain it | |||
| or assist in its implementation may be prepared, copied, published | or assist in its implementation may be prepared, copied, published | |||
| and distributed, in whole or in part, without restriction of any | and distributed, in whole or in part, without restriction of any | |||
| kind, provided that the above copyright notice and this paragraph are | kind, provided that the above copyright notice and this paragraph are | |||
| included on all such copies and derivative works. However, this | included on all such copies and derivative works. However, this | |||
| document itself may not be modified in any way, such as by removing | document itself may not be modified in any way, such as by removing | |||
| the copyright notice or references to the Internet Society or other | the copyright notice or references to the Internet Society or other | |||
| Internet organizations, except as needed for the purpose of | Internet organizations, except as needed for the purpose of | |||
| developing Internet standards in which case the procedures for | developing Internet standards in which case the procedures for | |||
| copyrights defined in the Internet Standards process must be | copyrights defined in the Internet Standards process must be | |||
| followed, or as required to translate it into languages other than | followed, or as required to translate it into languages other than | |||
| English. | English. | |||
| The limited permissions granted above are perpetual and will not be | The limited permissions granted above are perpetual and will not be | |||
| revoked by the Internet Society or its successors or assignees. | revoked by the Internet Society or its successors or assignees. | |||
| End of changes. 42 change blocks. | ||||
| 101 lines changed or deleted | 183 lines changed or added | |||
This html diff was produced by rfcdiff 1.48. The latest version is available from http://tools.ietf.org/tools/rfcdiff/ | ||||