Data plane protocols and fragmentation for 5G

Juha Matti Tilli; Raimo Kantola

doi:10.1109/CSCN.2017.8088623

Data plane protocols and fragmentation for 5G

Juha Matti Tilli, Raimo Kantola

Nokia Bell Labs Finland

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

10 Citations (Scopus)

1055 Downloads (Pure)

Abstract

Mobile networks up to this point have used general packet radio service (GPRS) tunneling protocol (GTP) in the core network. The fifth generation (5G) will be a major revolution in mobile networks and there have been discussions onto adopting a different protocol, with the proposals being generic routing encapsulation (GRE), virtual extensible local area network (VXLAN) and generic network virtualization encapsulation (Geneve). In this paper, these protocols are compared. GTP has a 32-bit tunnel endpoint identifier (TEID) and runs on top of user datagram protocol (UDP), thus allowing many applications in the same IP address in different ports. However, GTP unnecessarily stores packet length many times in the Internet protocol (IP), UDP and GTP levels, and the fragmentation strategy defined in third generation partnership project (3GPP) specifications is suboptimal. GRE has well-defined fragmentation strategy but runs directly on top of IP, so multiplexing based on ports is not possible. VXLAN and Geneve have only 24 bits for network identifier and encapsulate media access control (MAC) frames, which is not really what is needed here, and the fragmentation strategy of VXLAN is suboptimal albeit in a different way than in GTP. In this paper, we propose a common fragmentation strategy that may be applicable to all protocols.

Original language	English
Title of host publication	2017 IEEE Conference on Standards for Communications and Networking, CSCN 2017
Publisher	IEEE
Pages	207-213
Number of pages	7
ISBN (Electronic)	9781538630709
ISBN (Print)	978-1-5386-3071-6
DOIs	https://doi.org/10.1109/CSCN.2017.8088623
Publication status	Published - 27 Oct 2017
MoE publication type	A4 Conference publication
Event	IEEE Conference on Standards for Communications and Networking - Helsinki, Finland Duration: 18 Sept 2017 → 20 Dec 2017

Conference

Conference	IEEE Conference on Standards for Communications and Networking
Country/Territory	Finland
City	Helsinki
Period	18/09/2017 → 20/12/2017

Keywords

General Packet Radio Service Tunneling Protocol
Generic Network Virtualization Encapsulation
Generic Routing Encapsulation
Virtual Extensible Local Area Network

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10.1109/CSCN.2017.8088623

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Cite this

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title = "Data plane protocols and fragmentation for 5G",

abstract = "Mobile networks up to this point have used general packet radio service (GPRS) tunneling protocol (GTP) in the core network. The fifth generation (5G) will be a major revolution in mobile networks and there have been discussions onto adopting a different protocol, with the proposals being generic routing encapsulation (GRE), virtual extensible local area network (VXLAN) and generic network virtualization encapsulation (Geneve). In this paper, these protocols are compared. GTP has a 32-bit tunnel endpoint identifier (TEID) and runs on top of user datagram protocol (UDP), thus allowing many applications in the same IP address in different ports. However, GTP unnecessarily stores packet length many times in the Internet protocol (IP), UDP and GTP levels, and the fragmentation strategy defined in third generation partnership project (3GPP) specifications is suboptimal. GRE has well-defined fragmentation strategy but runs directly on top of IP, so multiplexing based on ports is not possible. VXLAN and Geneve have only 24 bits for network identifier and encapsulate media access control (MAC) frames, which is not really what is needed here, and the fragmentation strategy of VXLAN is suboptimal albeit in a different way than in GTP. In this paper, we propose a common fragmentation strategy that may be applicable to all protocols.",

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Data plane protocols and fragmentation for 5G

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Keywords

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