RFC Abstracts

RFC6445 - Multiprotocol Label Switching (MPLS) Traffic Engineering Management Information Base for Fast Reroute
This memo defines a portion of the Management Information Base for use with network management protocols in the Internet community. In particular, it describes managed objects used to support two fast reroute (FRR) methods for Multiprotocol Label Switching (MPLS)-based traffic engineering (TE). The two methods are the one-to-one backup method and the facility backup method. [STANDARDS-TRACK]
RFC6444 - Location Hiding: Problem Statement and Requirements
The emergency services architecture developed in the IETF Emergency Context Resolution with Internet Technology (ECRIT) working group describes an architecture where location information is provided by access networks to endpoints or Voice over IP (VoIP) service providers in order to determine the correct dial string and information to route the call to a Public Safety Answering Point (PSAP). To determine the PSAP Uniform Resource Identifier (URI), the usage of the Location-to-Service Translation (LoST) protocol is envisioned.
RFC6443 - Framework for Emergency Calling Using Internet Multimedia
The IETF has standardized various aspects of placing emergency calls. This document describes how all of those component parts are used to support emergency calls from citizens and visitors to authorities. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6442 - Location Conveyance for the Session Initiation Protocol
This document defines an extension to the Session Initiation Protocol (SIP) to convey geographic location information from one SIP entity to another SIP entity. The SIP extension covers end-to-end conveyance as well as location-based routing, where SIP intermediaries make routing decisions based upon the location of the Location Target. [STANDARDS-TRACK]
RFC6441 - Time to Remove Filters for Previously Unallocated IPv4 /8s
It has been common for network administrators to filter IP traffic from and BGP prefixes of unallocated IPv4 address space. Now that there are no longer any unallocated IPv4 /8s, this practise is more complicated, fragile, and expensive. Network administrators are advised to remove filters based on the registration status of the address space.
RFC6440 - The EAP Re-authentication Protocol (ERP) Local Domain Name DHCPv6 Option
In order to derive a Domain-Specific Root Key (DSRK) from the Extended Master Session Key (EMSK) generated as a side effect of an Extensible Authentication Protocol (EAP) method, the EAP peer must discover the name of the domain to which it is attached.
RFC6439 - Routing Bridges (RBridges): Appointed Forwarders
The IETF TRILL (TRansparent Interconnection of Lots of Links) protocol provides least cost pair-wise data forwarding without configuration in multi-hop networks with arbitrary topology, safe forwarding even during periods of temporary loops, and support for multipathing of both unicast and multicast traffic. TRILL accomplishes this by using IS-IS (Intermediate System to Intermediate System) link state routing and by encapsulating traffic using a header that includes a hop count. Devices that implement TRILL are called "RBridges" (Routing Bridges).
RFC6438 - Using the IPv6 Flow Label for Equal Cost Multipath Routing and Link Aggregation in Tunnels
The IPv6 flow label has certain restrictions on its use. This document describes how those restrictions apply when using the flow label for load balancing by equal cost multipath routing and for link aggregation, particularly for IP-in-IPv6 tunneled traffic. [STANDARDS-TRACK]
RFC6437 - IPv6 Flow Label Specification
This document specifies the IPv6 Flow Label field and the minimum requirements for IPv6 nodes labeling flows, IPv6 nodes forwarding labeled packets, and flow state establishment methods. Even when mentioned as examples of possible uses of the flow labeling, more detailed requirements for specific use cases are out of the scope for this document.
RFC6436 - Rationale for Update to the IPv6 Flow Label Specification
Various published proposals for use of the IPv6 flow label are incompatible with its original specification in RFC 3697. Furthermore, very little practical use is made of the flow label, partly due to some uncertainties about the correct interpretation of the specification. This document discusses and motivates changes to the specification in order to clarify it and to introduce some additional flexibility. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6435 - MPLS Transport Profile Lock Instruct and Loopback Functions
Two useful Operations, Administration, and Maintenance (OAM) functions in a transport network are "lock" and "loopback". The lock function enables an operator to lock a transport path such that it does not carry client traffic, but can continue to carry OAM messages and may carry test traffic. The loopback function allows an operator to set a specific node on the transport path into loopback mode such that it returns all received data.
RFC6434 - IPv6 Node Requirements
This document defines requirements for IPv6 nodes. It is expected that IPv6 will be deployed in a wide range of devices and situations. Specifying the requirements for IPv6 nodes allows IPv6 to function well and interoperate in a large number of situations and deployments. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6433 - Requirements for a Working Group Milestones Tool
The IETF intends to provide a new tool to Working Group chairs and Area Directors for the creation and updating of milestones for Working Group charters. This document describes the requirements for the proposed new tool, and it is intended as input to a later activity for the design and development of such a tool. This document updates RFC 6292. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6432 - Carrying Q.850 Codes in Reason Header Fields in SIP (Session Initiation Protocol) Responses
Although the use of the SIP (Session Initiation Protocol) Reason header field in responses is considered in general in RFC 3326, its use is not specified for any particular response code. Nonetheless, existing deployments have been using Reason header fields to carry failure-related Q.850 cause codes in SIP responses to INVITE requests that have been gatewayed to Public Switched Telephone Network (PSTN) systems. This document normatively describes the use of the Reason header field in carrying Q.850 cause codes in SIP responses. [STANDARDS-TRACK]
RFC6431 - Huawei Port Range Configuration Options for PPP IP Control Protocol (IPCP)
This document defines two Huawei IPCP (IP Control Protocol) options used to convey a set of ports. These options can be used in the context of port range-based solutions or NAT-based solutions for port delegation and forwarding purposes. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6430 - Email Feedback Report Type Value: not-spam
This document defines a new Abuse Reporting Format (ARF) feedback report type value: "not-spam". It can be used to report an email message that was mistakenly marked as spam. [STANDARDS-TRACK]
RFC6429 - TCP Sender Clarification for Persist Condition
This document clarifies the Zero Window Probes (ZWPs) described in RFC 1122 ("Requirements for Internet Hosts -- Communication Layers"). In particular, it clarifies the actions that can be taken on connections that are experiencing the ZWP condition. Rather than making a change to the standard, this document clarifies what has been until now a misinterpretation of the standard as specified in RFC 1122. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6428 - Proactive Connectivity Verification, Continuity Check, and Remote Defect Indication for the MPLS Transport Profile
Continuity Check, Proactive Connectivity Verification, and Remote Defect Indication functionalities are required for MPLS Transport Profile (MPLS-TP) Operations, Administration, and Maintenance (OAM).
RFC6427 - MPLS Fault Management Operations, Administration, and Maintenance (OAM)
This document specifies Operations, Administration, and Maintenance (OAM) messages to indicate service disruptive conditions for MPLS-based transport network Label Switched Paths. The notification mechanism employs a generic method for a service disruptive condition to be communicated to a Maintenance Entity Group End Point. This document defines an MPLS OAM channel, along with messages to communicate various types of service disruptive conditions. [STANDARDS-TRACK]
RFC6426 - MPLS On-Demand Connectivity Verification and Route Tracing
Label Switched Path Ping (LSP ping) is an existing and widely deployed Operations, Administration, and Maintenance (OAM) mechanism for Multi-Protocol Label Switching (MPLS) Label Switched Paths (LSPs). This document describes extensions to LSP ping so that LSP ping can be used for on-demand connectivity verification of MPLS Transport Profile (MPLS-TP) LSPs and pseudowires. This document also clarifies procedures to be used for processing the related OAM packets. Further, it describes procedures for using LSP ping to perform connectivity verification and route tracing functions in MPLS-TP networks. Finally, this document updates RFC 4379 by adding a new address type and creating an IANA registry. [STANDARDS-TRACK]
RFC6425 - Detecting Data-Plane Failures in Point-to-Multipoint MPLS - Extensions to LSP Ping
Recent proposals have extended the scope of Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) to encompass point-to-multipoint (P2MP) LSPs.
RFC6424 - Mechanism for Performing Label Switched Path Ping (LSP Ping) over MPLS Tunnels
This document describes methods for performing LSP ping (specified in RFC 4379) traceroute over MPLS tunnels and for traceroute of stitched MPLS Label Switched Paths (LSPs). The techniques outlined in RFC 4379 are insufficient to perform traceroute Forwarding Equivalency Class (FEC) validation and path discovery for an LSP that goes over other MPLS tunnels or for a stitched LSP. This document deprecates the Downstream Mapping TLV (defined in RFC 4379) in favor of a new TLV that, along with other procedures outlined in this document, can be used to trace such LSPs. [STANDARDS-TRACK]
RFC6423 - Using the Generic Associated Channel Label for Pseudowire in the MPLS Transport Profile (MPLS-TP)
This document describes the requirements for using the Generic Associated Channel Label (GAL) in pseudowires (PWs) in MPLS Transport Profile (MPLS-TP) networks, and provides an update to the description of GAL usage in RFC 5586 by removing the restriction that is imposed on using GAL for PWs, especially in MPLS-TP environments. [STANDARDS-TRACK]
RFC6422 - Relay-Supplied DHCP Options
DHCPv6 relay agents cannot communicate with DHCPv6 clients directly. However, in some cases, the relay agent possesses some information that would be useful to the DHCPv6 client. This document describes a mechanism whereby the DHCPv6 relay agent can provide such information to the DHCPv6 server, which can, in turn, pass this information on to the DHCP client.
RFC6421 - Crypto-Agility Requirements for Remote Authentication Dial-In User Service (RADIUS)
This memo describes the requirements for a crypto-agility solution for Remote Authentication Dial-In User Service (RADIUS). This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6420 - PIM Multi-Topology ID (MT-ID) Join Attribute
This document introduces a new type of PIM Join Attribute that extends PIM signaling to identify a topology that should be used when constructing a particular multicast distribution tree. [STANDARDS-TRACK]
RFC6419 - Current Practices for Multiple-Interface Hosts
An increasing number of hosts are operating in multiple-interface environments. This document summarizes current practices in this area and describes in detail how some common operating systems cope with challenges that ensue from this context. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6418 - Multiple Interfaces and Provisioning Domains Problem Statement
This document describes issues encountered by a node attached to multiple provisioning domains. This node receives configuration information from each of its provisioning domains, where some configuration objects are global to the node and others are local to the interface. Issues such as selecting the wrong interface to send traffic happen when conflicting node-scoped configuration objects are received and inappropriately used. Moreover, other issues are the result of simultaneous attachment to multiple networks, such as domain selection or addressing and naming space overlaps, regardless of the provisioning mechanism. While multiple provisioning domains are typically seen on nodes with multiple interfaces, this document also discusses situations involving single-interface nodes. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6417 - How to Contribute Research Results to Internet Standardization
The development of new technology is driven by scientific research. The Internet, with its roots in the ARPANET and NSFNet, is no exception. Many of the fundamental, long-term improvements to the architecture, security, end-to-end protocols and management of the Internet originate in the related academic research communities. Even shorter-term, more commercially driven extensions are oftentimes derived from academic research. When interoperability is required, the IETF standardizes such new technology. Timely and relevant standardization benefits from continuous input and review from the academic research community.
RFC6416 - RTP Payload Format for MPEG-4 Audio/Visual Streams
This document describes Real-time Transport Protocol (RTP) payload formats for carrying each of MPEG-4 Audio and MPEG-4 Visual bitstreams without using MPEG-4 Systems. This document obsoletes RFC 3016. It contains a summary of changes from RFC 3016 and discusses backward compatibility to RFC 3016. It is a necessary revision of RFC 3016 in order to correct misalignments with the 3GPP Packet- switched Streaming Service (PSS) specification regarding the RTP payload format for MPEG-4 Audio.
RFC6415 - Web Host Metadata
This specification describes a method for locating host metadata as well as information about individual resources controlled by the host. [STANDARDS-TRACK]
RFC6414 - Benchmarking Terminology for Protection Performance
This document provides common terminology and metrics for benchmarking the performance of sub-IP layer protection mechanisms. The performance benchmarks are measured at the IP layer; protection may be provided at the sub-IP layer. The benchmarks and terminology can be applied in methodology documents for different sub-IP layer protection mechanisms such as Automatic Protection Switching (APS), Virtual Router Redundancy Protocol (VRRP), Stateful High Availability (HA), and Multiprotocol Label Switching Fast Reroute (MPLS-FRR). This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6413 - Benchmarking Methodology for Link-State IGP Data-Plane Route Convergence
This document describes the methodology for benchmarking Link-State Interior Gateway Protocol (IGP) Route Convergence. The methodology is to be used for benchmarking IGP convergence time through externally observable (black-box) data-plane measurements. The methodology can be applied to any link-state IGP, such as IS-IS and OSPF. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6412 - Terminology for Benchmarking Link-State IGP Data-Plane Route Convergence
This document describes the terminology for benchmarking link-state Interior Gateway Protocol (IGP) route convergence. The terminology is to be used for benchmarking IGP convergence time through externally observable (black-box) data-plane measurements. The terminology can be applied to any link-state IGP, such as IS-IS and OSPF. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6411 - Applicability of Keying Methods for RSVP Security
The Resource reSerVation Protocol (RSVP) allows hop-by-hop integrity protection of RSVP neighbors. This requires messages to be cryptographically protected using a shared secret between participating nodes. This document compares group keying for RSVP with per-neighbor or per-interface keying, and discusses the associated key provisioning methods as well as applicability and limitations of these approaches. This document also discusses applicability of encrypting RSVP messages. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6410 - Reducing the Standards Track to Two Maturity Levels
This document updates the Internet Engineering Task Force (IETF) Standards Process defined in RFC 2026. Primarily, it reduces the Standards Process from three Standards Track maturity levels to two. This memo documents an Internet Best Current Practice.
RFC6409 - Message Submission for Mail
This memo splits message submission from message relay, allowing each service to operate according to its own rules (for security, policy, etc.), and specifies what actions are to be taken by a submission server.
RFC6408 - Diameter Straightforward-Naming Authority Pointer (S-NAPTR) Usage
The Diameter base protocol specifies mechanisms whereby a given realm may advertise Diameter nodes and the supported transport protocol. However, these mechanisms do not reveal the Diameter applications that each node supports. A peer outside the realm would have to perform a Diameter capability exchange with every node until it discovers one that supports the required application. This document updates RFC 3588, "Diameter Base Protocol", and describes an improvement using an extended format for the Straightforward-Naming Authority Pointer (S-NAPTR) application service tag that allows for discovery of the supported applications without doing Diameter capability exchange beforehand. [STANDARDS-TRACK]
RFC6407 - The Group Domain of Interpretation
This document describes the Group Domain of Interpretation (GDOI) protocol specified in RFC 3547. The GDOI provides group key management to support secure group communications according to the architecture specified in RFC 4046. The GDOI manages group security associations, which are used by IPsec and potentially other data security protocols. This document replaces RFC 3547. [STANDARDS-TRACK]
RFC6406 - Session PEERing for Multimedia INTerconnect (SPEERMINT) Architecture
This document defines a peering architecture for the Session Initiation Protocol (SIP) and its functional components and interfaces. It also describes the components and the steps necessary to establish a session between two SIP Service Provider (SSP) peering domains. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6405 - Voice over IP (VoIP) SIP Peering Use Cases
This document depicts many common Voice over IP (VoIP) use cases for Session Initiation Protocol (SIP) peering. These use cases are categorized into static and on-demand, and then further sub- categorized into direct and indirect. These use cases are not an exhaustive set, but rather the most common use cases deployed today. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6404 - Session PEERing for Multimedia INTerconnect (SPEERMINT) Security Threats and Suggested Countermeasures
The Session PEERing for Multimedia INTerconnect (SPEERMINT) working group (WG) provides a peering framework that leverages the building blocks of existing IETF-defined protocols such as SIP and ENUM for the interconnection between SIP Service Providers (SSPs). The objective of this document is to identify and enumerate SPEERMINT- specific threat vectors and to give guidance for implementers on selecting appropriate countermeasures. Security requirements for SPEERMINT that have been derived from the threats detailed in this document can be found in RFC 6271; this document provides concrete countermeasures to meet those SPEERMINT security requirements. In this document, the different security threats related to SPEERMINT are classified into threats to the Lookup Function (LUF), the Location Routing Function (LRF), the Signaling Function (SF), and the Media Function (MF) of a specific SIP Service Provider. Various instances of the threats are briefly introduced inside the classification. Finally, existing security solutions for SIP and RTP/RTCP (Real-time Transport Control Protocol) are presented to describe countermeasures currently available for such threats. Each SSP may have connections to one or more remote SSPs through peering or transit contracts. A potentially compromised remote SSP that attacks other SSPs is out of the scope of this document; this document focuses on attacks on an SSP from outside the trust domain such an SSP may have with other SSPs. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6403 - Suite B Profile of Certificate Management over CMS
The United States government has published guidelines for "NSA Suite\0B Cryptography", which defines cryptographic algorithm policy for national security applications. This document specifies a profile of the Certificate Management over CMS (CMC) protocol for managing Suite B X.509 public key certificates. This profile is a refinement of RFCs 5272, 5273, and 5274. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6402 - Certificate Management over CMS (CMC) Updates
This document contains a set of updates to the base syntax for CMC, a Certificate Management protocol using the Cryptographic Message Syntax (CMS). This document updates RFC 5272, RFC 5273, and RFC 5274.
RFC6401 - RSVP Extensions for Admission Priority
Some applications require the ability to provide an elevated probability of session establishment to specific sessions in times of network congestion. When supported over the Internet Protocol suite, this may be facilitated through a network-layer admission control solution that supports prioritized access to resources (e.g., bandwidth). These resources may be explicitly set aside for prioritized sessions, or may be shared with other sessions. This document specifies extensions to the Resource reSerVation Protocol (RSVP) that can be used to support such an admission priority capability at the network layer.
RFC6398 - IP Router Alert Considerations and Usage
The IP Router Alert Option is an IP option that alerts transit routers to more closely examine the contents of an IP packet. The Resource reSerVation Protocol (RSVP), Pragmatic General Multicast (PGM), the Internet Group Management Protocol (IGMP), Multicast Listener Discovery (MLD), Multicast Router Discovery (MRD), and General Internet Signaling Transport (GIST) are some of the protocols that make use of the IP Router Alert Option. This document discusses security aspects and usage guidelines around the use of the current IP Router Alert Option, thereby updating RFC 2113 and RFC 2711. Specifically, it provides recommendations against using the Router Alert in the end-to-end open Internet and identifies controlled environments where protocols depending on Router Alert can be used safely. It also provides recommendations about protection approaches for service providers. Finally, it provides brief guidelines for Router Alert implementation on routers. This memo documents an Internet Best Current Practice.
RFC6397 - Multi-Threaded Routing Toolkit (MRT) Border Gateway Protocol (BGP) Routing Information Export Format with Geo-Location Extensions
This document updates the Multi-threaded Routing Toolkit (MRT) export format for Border Gateway Protocol (BGP) routing information by extending it to include optional terrestrial coordinates of a BGP collector and its BGP peers. [STANDARDS-TRACK]
RFC6396 - Multi-Threaded Routing Toolkit (MRT) Routing Information Export Format
This document describes the MRT format for routing information export. This format was developed in concert with the Multi-threaded Routing Toolkit (MRT) from whence the format takes it name. The format can be used to export routing protocol messages, state changes, and routing information base contents. [STANDARDS-TRACK]
RFC6395 - An Interface Identifier (ID) Hello Option for PIM
This document defines a new PIM Hello option to advertise an Interface Identifier that can be used by PIM protocols to uniquely identify an interface of a neighboring router. [STANDARDS-TRACK]
RFC6394 - Use Cases and Requirements for DNS-Based Authentication of Named Entities (DANE)
Many current applications use the certificate-based authentication features in Transport Layer Security (TLS) to allow clients to verify that a connected server properly represents a desired domain name. Typically, this authentication has been based on PKIX certificate chains rooted in well-known certificate authorities (CAs), but additional information can be provided via the DNS itself. This document describes a set of use cases in which the DNS and DNS Security Extensions (DNSSEC) could be used to make assertions that support the TLS authentication process. The main focus of this document is TLS server authentication, but it also covers TLS client authentication for applications where TLS clients are identified by domain names. [STANDARDS-TRACK]