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Internet Engineering Task Force (IETF) P. SeiteRequest for Comments: 8278 OrangeCategory: Standards Track A. YeginISSN: 2070-1721 Actility S. Gundavelli Cisco January 2018Mobile Access Gateway (MAG) Multipath OptionsAbstract This specification defines extensions to the Proxy Mobile IPv6 (PMIPv6) protocol that allow a mobile access gateway (MAG) to register more than one proxy care-of address (pCoA) with the local mobility anchor (LMA) and to simultaneously establish multiple IP tunnels with the LMA. This capability allows the MAG to utilize all the available access networks to route the mobile node's IP traffic. This document defines the following two new mobility header options: the MAG Multipath Binding option and the MAG Identifier option.Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available inSection 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained athttps://www.rfc-editor.org/info/rfc8278.Seite, et al. Standards Track [Page 1]
RFC 8278 MAG Multipath Binding Options January 2018Copyright Notice Copyright (c) 2018 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject toBCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.Table of Contents1. Introduction . . . . . . . . . . . . . . . . . . . . . . . .32. Conventions and Terminology . . . . . . . . . . . . . . . . .42.1. Conventions . . . . . . . . . . . . . . . . . . . . . . .42.2. Terminology . . . . . . . . . . . . . . . . . . . . . . .53. Overview . . . . . . . . . . . . . . . . . . . . . . . . . .53.1. Example Call Flow . . . . . . . . . . . . . . . . . . . .53.2. Traffic Distribution Schemes . . . . . . . . . . . . . .64. Protocol Extensions . . . . . . . . . . . . . . . . . . . . .74.1. MAG Multipath Binding Option . . . . . . . . . . . . . .74.2. MAG Identifier Option . . . . . . . . . . . . . . . . . .104.3. New Status Code for Proxy Binding Acknowledgement . . . .114.4. Signaling Considerations . . . . . . . . . . . . . . . .115. IANA Considerations . . . . . . . . . . . . . . . . . . . . .126. Security Considerations . . . . . . . . . . . . . . . . . . .127. References . . . . . . . . . . . . . . . . . . . . . . . . .137.1. Normative References . . . . . . . . . . . . . . . . . .137.2. Informative References . . . . . . . . . . . . . . . . .14 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . .14 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . .15Seite, et al. Standards Track [Page 2]
RFC 8278 MAG Multipath Binding Options January 20181. Introduction Multihoming support on IP hosts can greatly improve the user experience. With the simultaneous use of multiple access networks, multihoming brings better network connectivity, reliability, and improved quality of communication. The following are some of the goals and benefits of multihoming support: o Redundancy/Fault-Recovery o Load balancing o Load sharing o Preference settings According to [RFC4908], users of small-scale networks can benefit from a mobile and fixed multihomed architecture using mobile IP [RFC6275] and Network Mobility (NEMO) [RFC3963]. The motivation for this work is to extend the PMIPv6 protocol with multihoming extensions [RFC4908] for realizing the following capabilities: o Using GRE as mobile tunneling, possibly with its key extension [RFC5845]. o Using UDP encapsulation [RFC5844] in order to support NAT traversal in an IPv4 networking environment. o Using the prefix delegation mechanism [RFC7148]. o Using the Vendor Specific Mobility Option [RFC5094], for example, to allow the MAG and LMA to exchange information (e.g., WAN interface QoS metrics), which allows the appropriate traffic- steering decisions to be made. PMIPv6 relies on two mobility entities: the MAG, which acts as the default gateway for the end node (either a mobile or a fixed node) attached to the MAG's access links, and the LMA, which acts as the topological anchor point. IP tunnel is created with any one of the supported encapsulation mode between the MAG and the LMA. Then, the MAG and LMA distribute the end node's traffic over these tunnels. All PMIPv6 operations are performed on behalf of the end node and its correspondent node. Thus, it makes PMIPv6 well adapted to multihomed architecture as considered in [RFC4908]. Taking the LTE and WLAN networking environments as examples, the PMIPv6-based multihomed architecture is depicted in Figure 1. In this example, IP flows,Seite, et al. Standards Track [Page 3]
RFC 8278 MAG Multipath Binding Options January 2018 Flow-1 and Flow-3 are routed over Tunnel-1 and Flow-2 is routed over Tunnel-2. However, IP traffic belonging to Flow-4 is distributed on both Tunnel-1 and Tunnel-2 paths. Flow-1 | |Flow-2 _----_ | | CoA-1 _( )_ Tunnel-1 Flow-1 | | .---=======( LTE )========\ Flow-3 | | | (_ _) \ Flow-4 | | | '----' \ | | +=====+ \ +=====+ _----_ | '-| | \ | | _( )_ '---| MAG | | LMA |-( Internet )-- .---| | | | (_ _) | .-| | / | | '----' | | +=====+ / +=====+ | | | _----_ / | | | CoA-2 _( )_ Tunnel-2 / | | .---=======( WLAN )========/ Flow-2 | | (_ _) Flow-4 | | '----' |Flow-3 | Flow0-4 Figure 1: Multihomed MAG Using Proxy Mobile IPv6 The current version of PMIPv6 does not allow a MAG to register more than one pCoA to the LMA. In other words, only one MAG/LMA link, i.e., IP-in-IP tunnel, can be used at the same time. This document overcomes this limitation by defining the multiple pCoAs extension for PMIPv6.2. Conventions and Terminology2.1. Conventions The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described inBCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here.Seite, et al. Standards Track [Page 4]
RFC 8278 MAG Multipath Binding Options January 20182.2. Terminology All mobility-related terms used in this document are to be interpreted as defined in [RFC5213], [RFC5844], and [RFC7148]. Additionally, this document uses the following term: IP-in-IP IP-within-IP encapsulation [RFC2473] [RFC4213]3. Overview3.1. Example Call Flow Figure 2 is the call flow detailing multi-access support with PMIPv6. The MAG in this example scenario is equipped with both WLAN and LTE interfaces and is also configured with the multihoming functionality. The steps of the call flow are as follows: Steps (1) and (2): The MAG attaches to both WLAN and LTE networks. Then, the MAG obtains two different pCoAs, respectfully. Step (3): The MAG sends, over the LTE access, a Proxy Binding Update (PBU) message with the new MAG Multipath Binding (MMB) and MAG Network Access Identifier (MAG-NAI) options to the LMA. The request can be for a physical mobile node attached to the MAG or for a logical mobile node configured on the mobile access gateway. A logical mobile node is a logical representation of a mobile node in the form of a configuration that is always enabled on the MAG. The mobility session that is created (i.e., create a Binding Cache Entry (BCE)) on the LMA will be marked with multipath support. Step (4): The LMA sends back a Proxy Binding Acknowledgement (PBA) including the Home Network Prefix (HNP) and other session parameters allocated for that mobility session. Step (5): IP tunnel is created between the MAG and the LMA over LTE access with any one of the supported encapsulation modes. Steps (6) to (8): The MAG repeats steps (3) to (5) on the WLAN access. The MAG includes the HNP, received on step (4) in the PBU. The LMA updates its binding cache by creating a new mobility session for this MAG. Steps (9) and (10): The IP hosts MN_1 and MN_2 are assigned IP addresses from the mobile network prefix delegated to the MAG by the LMA.Seite, et al. Standards Track [Page 5]
RFC 8278 MAG Multipath Binding Options January 2018 +=====+ +=====+ +=====+ +=====+ +=====+ +=====+ | MN_1| | MN_2| | MAG | | WLAN| | LTE | | LMA | +=====+ +=====+ +=====+ +=====+ +=====+ +=====+ | | | | | | | | | | | | | | | (1) ATTACH | | | | | | <--------> | | | | | | (2) ATTACH | | | | | <---------------------->| | | | | (3) PBU (MAG-NAI, MMB, ...) | | | | ------------------------*-------------->| | | | | | | | Accept PBU | | | (allocate HNP, | | | create BCE) | | | (4) PBA (MMB, ...) | | | | <-----------------------*---------------| | | | (5) TUNNEL INTERFACE CREATION over LTE | | | |-============== TUNNEL ==*==============-| | | | | | | | (6) PBU (MAG-NAI, MMB, ...) | | | | -----------*--------------------------->| | | | | | | | Accept PBU | | | (update BCE) | | | (7) PBA (MMB, ...) | | | | <----------*--------------------------- | | | | (8) TUNNEL INTERFACE CREATION over WLAN | | | |-===========*== TUNNEL =================-| | (9) ATTACH | | | <---------------> | | | |(10) ATTACH| | | |<--------> | | Figure 2: Functional Separation of the Control and User Planes3.2. Traffic Distribution Schemes When the MAG has registered a multipath binding with the LMA, there will be multiple established overlay tunnels between them. The MAG and the LMA can use any one, or more, of the available tunnel paths for routing the mobile node's IP traffic. This specification does not recommend or define any specific traffic distribution scheme. However, it identifies two well-known approaches that implementations can potentially use. These approaches are per-flow and per-packet traffic distribution schemes.Seite, et al. Standards Track [Page 6]
RFC 8278 MAG Multipath Binding Options January 2018 Per-Flow Traffic Distribution: o In this approach, the MAG and the LMA associate each of the IP flows (upstream and downstream) with a specific tunnel path. The packets in a given IP flow are always routed on the same overlay tunnel path; they are never split and routed concurrently on more than one tunnel path. It is possible for a given flow to be moved from one tunnel path to another, but the flow is never split. The decision to bind a given IP flow to a specific tunnel path is based on the traffic distribution policy. This traffic distribution policy is either statically configured on both the MAG and the LMA or dynamically negotiated over PMIPv6 signaling. The Flow Binding extension [RFC6089] and Traffic Selectors for Flow Bindings [RFC6088] define the mechanism and the semantics for exchanging the traffic policy between two tunnel peers; the same mechanism and the mobility options are used here. Per-Packet Traffic Distribution: o In this approach, packets belonging to a given IP flow will be split and routed across more than one tunnel path. The exact approach for traffic distribution or the distribution weights is outside the scope of this specification. In a very simplistic approach, assuming that the established tunnel paths have symmetric characteristics, the packets can be equally distributed on all the available tunnel paths. In a different scenario, when the links have different speeds, the chosen approach can be based on weighted distribution (e.g., n:m ratio). However, in any of these chosen approaches, implementations have to be sensitive to issues related to asymmetric link characteristics and the resulting issues such as reordering, buffering, and the impact on application performance. Care must be taken to ensure that there is no negative impact on the application performance due to the use of this approach.4. Protocol Extensions4.1. MAG Multipath Binding Option The MAG Multipath Binding option is a new mobility header option defined for use with PBU and PBA messages exchanged between the LMA and the MAG. This mobility header option is used for requesting multipath support. It indicates that the MAG is requesting that the LMA register the current CoA associated with the request as one of the many CoAsSeite, et al. Standards Track [Page 7]
RFC 8278 MAG Multipath Binding Options January 2018 through which the MAG can be reached. It is also used for carrying the information related to the access network associated with the CoA. The MAG Multipath Binding option does not have any alignment requirement. Its format is as shown in Figure 3: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type | Length | If-ATT | If-Label | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Binding ID |B|O| Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Figure 3: MAG Multipath Binding Option Type Type: MAG Multipath Binding (63) Length 8-bit unsigned integer indicating the length of the option in octets, excluding the Type and Length fields. Interface Access-Technology Type (If-ATT) This 8-bit field identifies the Access-Technology type of the interface through which the mobile node is connected. The permitted values for this are from the Access Technology Type registry <https://www.iana.org/assignments/mobility-parameters/> defined in [RFC5213]. Interface Label (If-Label) This 8-bit unsigned integer represents the interface label. The interface label is an identifier configured on the WAN interface of the MAG. All the WAN interfaces of the MAG that are used for sending PBU messages are configured with a label. The labels merely identify the type of WAN interface and are primarily used in application-routing policies. For example, a Wi-Fi interface can be configured with a label "9" and an LTE interface with a label "11". Furthermore, the same label may be configured on two WAN interfaces of similar characteristics (e.g., two Ethernet interfaces with the same label).Seite, et al. Standards Track [Page 8]
RFC 8278 MAG Multipath Binding Options January 2018 Interface labels are signaled from the MAG to the LMA in the PBU messages and both the LMA and MAG will be able to mark each of the dynamically created Binding/Tunnel with the associated label. These labels are used in generating consistent application-routing rules on the both the LMA and the MAG. For example, there can be a policy requiring HTTP packets to be routed over an interface that has the interface label of "9", and if any of the interfaces with interface label "9" are not available, the traffic needs to be routed over the interface with the interface label "11". The MAG and the LMA will be able to apply this routing rule with the exchange of interface labels in PBU messages and by associating the application flows to tunnels with the matching interface labels. Binding Identifier (BID) This 8-bit unsigned integer is used for identifying the binding. The permitted values are 1 through 254. The values 0 and 255 are reserved. The MAG identifies each of the mobile node's bindings with a unique identifier. The MAG includes the identifier in the PBU message; when the PBU request is accepted by the LMA, the resulting binding is associated with this BID in the mobile node's Binding Cache entry. Bulk Re-registration Flag (B) If set to a value of (1), this flag notifies the LMA to consider this as a request to update the binding lifetime of all the mobile node's bindings upon accepting this specific request. The (B) flag MUST NOT be set to a value of (1) if the value of the Registration Overwrite (O) flag is set to a value of (1). Registration Overwrite (O) This flag, if set to a value of (1), notifies the LMA that upon accepting this request, it should replace all of the mobile node's existing bindings with this binding. This flag MUST NOT be set to a value of (1) if the value of the Bulk Re-registration Flag (B) is set to a value of (1). This flag MUST be set to a value of (0) in De-Registration requests. Reserved This field is unused in this specification. The value MUST be set to zero (0) by the sender and MUST be ignored by the receiver.Seite, et al. Standards Track [Page 9]
RFC 8278 MAG Multipath Binding Options January 20184.2. MAG Identifier Option The MAG Identifier option is a new mobility header option defined for use with PBU and PBA messages exchanged between the LMA and the MAG. This mobility header option is used for conveying the MAG's identity. This option does not have any alignment requirements. 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type | Length | Subtype | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Identifier ... ~ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Figure 4: MAG Identifier Option Type Type: MAG Identifier (64) Length 8-bit unsigned integer indicating the length of the option in octets, excluding the Type and Length fields. Subtype One-byte unsigned integer used for identifying the type of the Identifier field. Accepted values for this field are the registered type values from the "Mobile Node Identifier Option Subtypes" registry <https://www.iana.org/assignments/mobility-parameters/>. Reserved This field is unused in this specification. The value MUST be set to zero (0) by the sender and MUST be ignored by the receiver. Identifier A variable-length identifier of the type indicated in the Subtype field.Seite, et al. Standards Track [Page 10]
RFC 8278 MAG Multipath Binding Options January 20184.3. New Status Code for Proxy Binding Acknowledgement This document defines the following new Status Code value for use in PBA messages. The LMA SHOULD use this error code when rejecting a PBU message from a MAG requesting a multipath binding. The following is the potential reason for rejecting the request: o The LMA does not support multipath binding. CANNOT_SUPPORT_MULTIPATH_BINDING (Cannot Support Multipath Binding): 1804.4. Signaling Considerations o The MAG, when requesting multipath support, MUST include the MAG Multipath Binding option (Section 4.1) in each of the PBU messages that it sends through the different WAN interfaces. The inclusion of this option serves as a hint that the MAG is requesting multipath support. Furthermore, the MAG Identifier option MUST also be present in the PBU message. o If the MAG is aware that the LMA supports the multipath binding option defined in this specification and if it chooses to use multiple paths, then it can send the PBU packets for each of the paths, either sequentially or concurrently. However, if the MAG is not aware of the LMA capability, then it SHOULD first discover the LMA capability by sending PBU packets with multipath on only one path first. This will ensure that the LMA will not be overwriting the binding of one path with the other path. o If the LMA supports multipath capability as defined in this specification and if it enables the same for a mobile node's session per the MAG's request, then the LMA MUST include the Multipath Binding option (Section 4.1) without the MAG-NAI option (Section 4.2) in the corresponding PBA reply. o If the LMA is a legacy LMA that does not support this specification, the LMA will skip the MAG Multipath Binding option (and MAG-NAI option) and process the rest of the message as specified in the base PMIPv6 specification ([RFC5213]). Furthermore, the LMA will not include the MAG Multipath Binding option (or the MAG-NAI option) in the PBA message. The MAG, upon receiving the PBA message without the MAG Multipath Binding option, SHOULD disable multipath support for the mobile node.Seite, et al. Standards Track [Page 11]
RFC 8278 MAG Multipath Binding Options January 2018 o If the mobile node is not authorized for multipath support, then the LMA will reject the request by sending a PBA message with the Status field value set to CANNOT_SUPPORT_MULTIPATH_BINDING (Section 4.3). The LMA MUST echo the MAG Multipath Binding option (without the MAG-NAI option) in the PBA message. The MAG, upon receiving this message, SHOULD disable multipath support for the mobile node.5. IANA Considerations This specification defines a new mobility option: the MAG Multipath Binding option. The format of this option is described inSection 4.1. The type value 63 has been allocated for this mobility option from the "Mobility Options" registry at <http://www.iana.org/assignments/mobility-parameters>. This specification defines a new mobility option: the MAG Identifier option. The format of this option is described inSection 4.2. The type value 64 has been allocated for this mobility option from the "Mobility Options" registry at <http://www.iana.org/assignments/mobility-parameters>. This document defines a new status value: CANNOT_SUPPORT_MULTIPATH_BINDING (180) for use in PBA messages, as described inSection 4.3. This value has been assigned from the "Status Codes" registry at <http://www.iana.org/assignments/mobility-parameters>.6. Security Considerations This specification allows a MAG to establish multiple PMIPv6 tunnels with an LMA by registering a care-of address for each of its connected access networks. This essentially allows the mobile node's IP traffic to be routed through any of the tunnel paths based on the negotiated flow policy. This new capability has no impact on the protocol security. Furthermore, this specification defines two new mobility header options: the MAG Multipath Binding option and the MAG Identifier option. These options are carried like any other mobility header option as specified in [RFC5213]. Therefore, it inherits security guidelines from [RFC5213]. Thus, this specification does not weaken the security of the PMIPv6 Protocol and does not introduce any new security vulnerabilities.Seite, et al. Standards Track [Page 12]
RFC 8278 MAG Multipath Binding Options January 20187. References7.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels",BCP 14,RFC 2119, DOI 10.17487/RFC2119, March 1997, <https://www.rfc-editor.org/info/rfc2119>. [RFC3963] Devarapalli, V., Wakikawa, R., Petrescu, A., and P. Thubert, "Network Mobility (NEMO) Basic Support Protocol",RFC 3963, DOI 10.17487/RFC3963, January 2005, <https://www.rfc-editor.org/info/rfc3963>. [RFC5094] Devarapalli, V., Patel, A., and K. Leung, "Mobile IPv6 Vendor Specific Option",RFC 5094, DOI 10.17487/RFC5094, December 2007, <https://www.rfc-editor.org/info/rfc5094>. [RFC5213] Gundavelli, S., Ed., Leung, K., Devarapalli, V., Chowdhury, K., and B. Patil, "Proxy Mobile IPv6",RFC 5213, DOI 10.17487/RFC5213, August 2008, <https://www.rfc-editor.org/info/rfc5213>. [RFC5844] Wakikawa, R. and S. Gundavelli, "IPv4 Support for Proxy Mobile IPv6",RFC 5844, DOI 10.17487/RFC5844, May 2010, <https://www.rfc-editor.org/info/rfc5844>. [RFC5845] Muhanna, A., Khalil, M., Gundavelli, S., and K. Leung, "Generic Routing Encapsulation (GRE) Key Option for Proxy Mobile IPv6",RFC 5845, DOI 10.17487/RFC5845, June 2010, <https://www.rfc-editor.org/info/rfc5845>. [RFC6088] Tsirtsis, G., Giarreta, G., Soliman, H., and N. Montavont, "Traffic Selectors for Flow Bindings",RFC 6088, DOI 10.17487/RFC6088, January 2011, <https://www.rfc-editor.org/info/rfc6088>. [RFC6089] Tsirtsis, G., Soliman, H., Montavont, N., Giaretta, G., and K. Kuladinithi, "Flow Bindings in Mobile IPv6 and Network Mobility (NEMO) Basic Support",RFC 6089, DOI 10.17487/RFC6089, January 2011, <https://www.rfc-editor.org/info/rfc6089>. [RFC6275] Perkins, C., Ed., Johnson, D., and J. Arkko, "Mobility Support in IPv6",RFC 6275, DOI 10.17487/RFC6275, July 2011, <https://www.rfc-editor.org/info/rfc6275>.Seite, et al. Standards Track [Page 13]
RFC 8278 MAG Multipath Binding Options January 2018 [RFC7148] Zhou, X., Korhonen, J., Williams, C., Gundavelli, S., and CJ. Bernardos, "Prefix Delegation Support for Proxy Mobile IPv6",RFC 7148, DOI 10.17487/RFC7148, March 2014, <https://www.rfc-editor.org/info/rfc7148>. [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase inRFC2119 Key Words",BCP 14,RFC 8174, DOI 10.17487/RFC8174, May 2017, <https://www.rfc-editor.org/info/rfc8174>.7.2. Informative References [RFC2473] Conta, A. and S. Deering, "Generic Packet Tunneling in IPv6 Specification",RFC 2473, DOI 10.17487/RFC2473, December 1998, <https://www.rfc-editor.org/info/rfc2473>. [RFC4213] Nordmark, E. and R. Gilligan, "Basic Transition Mechanisms for IPv6 Hosts and Routers",RFC 4213, DOI 10.17487/RFC4213, October 2005, <https://www.rfc-editor.org/info/rfc4213>. [RFC4908] Nagami, K., Uda, S., Ogashiwa, N., Esaki, H., Wakikawa, R., and H. Ohnishi, "Multi-homing for small scale fixed network Using Mobile IP and NEMO",RFC 4908, DOI 10.17487/RFC4908, June 2007, <https://www.rfc-editor.org/info/rfc4908>.Acknowledgements The authors of this document would like to acknowledge the discussions and feedback on this topic from the members of the Distributed Mobility Management Working Group. The authors would also like to thank Jouni Korhonen, Jong Hyouk Lee, Dirk Von-Hugo, Seil Jeon, Carlos Bernardos, Robert Sparks, Adam Roach, Kathleen Moriarty, Hilarie Orman, Ben Campbell, Warren Kumari, and Dhananjay Patki for their review feedback. Special thanks to Mirja Kuehlewind for a very thorough review and suggesting many text improvements.Seite, et al. Standards Track [Page 14]
RFC 8278 MAG Multipath Binding Options January 2018Authors' Addresses Pierrick Seite Orange 4, rue du Clos Courtel, BP 91226 Cesson-Sevigne 35512 France Email: pierrick.seite@orange.com Alper Yegin Actility Turkey Email: alper.yegin@actility.com Sri Gundavelli Cisco 170 West Tasman Drive San Jose, CA 95134 United States of America Email: sgundave@cisco.comSeite, et al. Standards Track [Page 15]
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