High-performance Network Accommodation and Intra-slice Switching - - PowerPoint PPT Presentation

High-performance Network Accommodation and Intra-slice Switching Using a Type of Virtualization Node

Yasusi Kanada & Kei Shiraishi, Hitachi, Ltd. Akihiro Nakao, University of Tokyo

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Introduction

▶ We developed a network-virtualization architecture and platform in a collaboration project. ▶ Multiple slices can be created on one physical network in this architecture and platform.

◆ Slices means virtual networks.

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Virtualization platform

VNode VNode VNode

Slice 3 Slice 2 Slice 1

Domain Controller

Slice developer Slice definition

<?xml ...> ...

A type of SDN

(Software defined network)

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd. 3

Introduction (cont’d)

▶ Two issues to be solved

◆ To connect a slice and an external network with high-performance.

▪ A slice is something like a closed virtual world, but external connection is important for networking.

◆ To utilize high-performance hardware function (such as Ethernet switching) of VNode on a slice.

▪ A slice is isolated even from the platform.

▶ These issues are solved by introducing a new type of node called NACE (Network ACcommodation Equipment).

Virtualization platform

VNode VNode VNode

Slice 3 Slice 2 Slice 1 Connection External network Utilizing Hardware Functions

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

VNode

▶ VNode (virtualization node) is a component of the network virtualization platform.

◆ VNode is a physical node. ◆ VNode forwards packets on the platform as a router. ◆ Slices are implemented as overlay networks on the virtualization platform. ◆ VNodes are connected by tunnels using GRE/IP. ▪ GRE (Generic Routing Encapsulation) is a protocol standardized by IETF.

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Gate- way Gate- way User’s PC/VM User’s PC/VM DC

VNode VNode VNode

IP Router

VNode

DC: Domain Controller

Virtualization platform (IP network)

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Components of VNode

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▶ Programmer

◆ is a programmable component that processes packets on the slices.

▶ Redirector

◆ forwards (redirects) packets from another VNode to a programmer and forwards packets from a programmer to another VNode. ◆ is a component that can forward or route packets on the platform.

▶ VNode Manager

◆ is a software component that manages the VNode.

VNode Manager

Programmer

Redirector

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

NACE and challenges

▶ We developed NACE (Network ACcommodation Equipment) to solve the two issues. ▶ Two challenges

◆High-performance gateway function between internal and external data representation. ◆Utilizing high-performance Ethernet switching function of NACE hardware.

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Virtualization platform External network

NACE

～ 10 Gbps Virtualization platform

NACE Ethernet switch

Slice

Virtual switch

～ 10 Gbps ～ 10 Gbps Gateway

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Structure of NACE

▶ NACE is a remodeled version of VNode.

◆consists of VNM, Redirector, and Pseudo programmer manager.

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Redirector Redirector body (RB) Service module card (SMC) Control plane (C-Plane) Data plane (D-plane) Internal data plane Pseudo programmer manager Redirector manager (RM) VNode manager (VNM)

High-end Ethernet switch Network processor card Dummy component

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

NACE as Gateway -- 1st challenge

▶ External networks are connected to NACE as VLANs. ▶ Types of network accommodation

◆One-to-one accommodation

▪ accommodates one VLAN to a slice.

◆Many-to-one accommodation

▪ accommodates two or more VLANs to a slice.

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Ethernet Virtualization platform External network

Payload DMACSMAC VID t DMACSMAC Payload

DMAC’ SMAC’

IP header GRE

VLAN 100 VNode NACE Switch

Physical port / Logical port (VLAN 100)

Ethernet Virtualization platform VLAN 100 VNode NACE External network Ethernet

DMACSMAC Payload

DMAC’ SMAC’

IP header GRE Payload DMACSMAC VID 100 t Payload DMAC SMAC VID 200 t

Switch VLAN 200

Physical port

VID x00 t t

High performance conversion using SMC High performance conversion using SMC (using a NP)

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

NACE as Intra-slice Switch -- 2nd challenge

▶ Specification method (slice design)

◆A slice developer can create a “switch node sliver (SNS)” in a

• NACE. -- SNS is a type of virtual node.

◆SNS works as a virtual Ethernet switch. ◆An SNS can connect to other node slivers using (GRE-based) virtual links.

▶ Implementation method

◆An SNS is implemented by the Ethernet switch (redirector body). ◆Virtual links are implemented by using an SMC (using a NP).

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Switch node sliver (SNS)

GRE link sliver GRE link sliver GRE link sliver

VID t DMAC SMAC Payload DMAC’ SMAC’ IP header GRE Payload DMAC SMAC VID t

High performance conversion using SMC (using a NP)

Anther node sliver

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Applications and Evaluations of NACE, 1/2

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Node sliver Node sliver Node sliver PC Client

IPEC Soft SW IPEC- Ether GW

IPEC slice

PC Server PC Server

IPEC Soft SW IPEC- Ether GW IPEC Soft SW IPEC- Ether GW

AGW Link sliver Link sliver Link sliver NACE 2 NACE 1 VNode 1 VNode 2 VNode 3

“Data center” “Data center”

▶ Gateway for data centers -- a method for testing a new protocol

◆Two simulated data centers with PC servers are connected to a slice using two NACEs, and a PC client is connected to the slice. ◆A new (non-IP) protocol called IPEC (IP Ether Chimera) is used on the slice. ◆IP/Ethernet is used in the data centers and in the PC client. ◆The protocol is converted on the border (IP/IPEC <-> IP/Ethernet).

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Applications and Evaluations of NACE, 2/2

▶ Distributed key-value store using an intra-slice switch

◆In this slice, MAC addresses are used for keys instead of hardware addresses. ◆The virtual switch selects a key-value store (server) using the key (destination MAC) in a query packet.

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NACE 7 (Tokyo) Node sliver Node sliver Node sliver

DB 1

(key-value server)

Ethernet Slice

DB 2

(key-value server)

DB 3

(key-value server)

VNode 4 (Hokuriku) VNode 3 (Osaka) VNode 1 (Tokyo) Client

Switch node-sliver

(key31, val31) (key32, val32) … (key3n3, val3n3) (key11, val11) (key12, val12) … (key1n1, val1n1) (key21, val21) (key22, val22) … (key2n2, val2n2)

Query Advertise

D S key ClientAddr type Query FFFFFFFF key type Advertise D S D S

Value!

ClientAddr key type Answer value

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Slice-to-slice Connection and Demos in GEC 15

▶ In GEC 15 in October 23, our platform was connected to GENI (GEC 15 = 15th GENI Engineering Conference @ Houston, TX)

◆They are connected by a NACE placed at the University of Utah. ◆Slices of ProtoGENI are connected to our slices on JGN-X (a testbed in Japan).

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Tokyo Otemachi

JGN-X

GENI

University of Utah

Proto- GENI

VNode System NC 7 Four VLANs (1517+1591+1592+1595) VNode Front End PRESTA

IARIA Infocomp 2012 2012-10-24 Yasusi Kanada, Hitachi Ltd.

Summary

▶ NACE, a type of physical node, is introduced to a network virtualization architecture. ▶ NACE has two roles. ◆ A network-slice gateway. ◆ An intra-slice virtual switch. ▶ The performance of NACE is upto 10 Gbps in both gateway and virtual switch. ▶ We tested several applications and evaluated NACE, and obtained expected results and good performance. ◆Gateway for data centers -- a method for testing a new protocol ◆Distributed key-value store using an intra-slice switch ◆GEC 15 demo

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