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  • CORE INFRASTRUCTURE MIGRATION

    LOW LEVEL DESIGN

    v 0.1

    RE-Solution Data Ltd

    170 Greenford Road

    Harrow

    Middlesex

    HA1 3QX

    T +44 (0) 8450 031323

    Reach | Recruit | Resolve | Refine

    CLIENT LOGO HERE

  • Copyright 2015 Re-Solution. All rights reserved. Page 2 of 32

    DOCUMENT CONTROL Purpose of Document

    The purpose of this document is to provide A CUSTOMER with a low level design document proposing the design for the technology refresh taking place at their Headquarters based in Gloucestershire. This document will cover the core network and the DC environment only specifically the Nexus environment, all other components of the network infrastructure are out of scope. This low level design will be used for a definitive reference and a base as to how the fixed network will be developed and implemented. The information in this document is conveyed with the assumption that engineers possess CCNP or equivalent knowledge of network protocols and design fundamentals. It is not intended to explain every fine detail and every configuration line for both Catalyst and Nexus devices that will be used in the design, as its expected that engineers understand these devices and their configurations to a decent level. Record of Modifications

    Version Date Revision Name

    0.1 14/02/2015 First Draft Sean Draper

    0.2 Initial Peer Review

    Distribution List

    Name Company Contact Details Role / Responsibility

    Darren Smith Resolution darren@re-solution.london Sales Account Manager

    Tom Giembicki Resolution tom@re-solution.london CTO

    Contributors

    Name Title Responsibility

    Tom Giembicki CTO Reviewer

    Referenced Documents

    Document Title Description

    Scope Of works Document Scope Of works

    Sign Off

    Name Title Signature

    Darren Smith Sales Director

  • Copyright 2015 Re-Solution. All rights reserved. Page 3 of 32

    TABLE OF CONTENTS

    DOCUMENT CONTROL ..........................................................................................................................................2

    TABLE OF CONTENTS ............................................................................................................................................ 3

    TABLE OF FIGURES ............................................................................................................................................... 4

    TABLE OF TABLES ................................................................................................................................................ 4

    RESTRICTION ON DISCLOSURE ............................................................................................................................ 5

    INTRODUCTION .................................................................................................................................................... 6

    1 SCOPE ............................................................................................................................................................. 7

    1.1 Project Scope .......................................................................................................................................... 7 1.2 Design Scope ........................................................................................................................................... 7 1.3 Document Structure ............................................................................................................................... 7

    2 NETWORK DESIGN ....................................................................................................................................... 8

    2.1 Overview ................................................................................................................................................. 8 2.2 Core and Server Aggregation ................................................................................................................ 8 2.3 Server Access Layer (FlexPod) .............................................................................................................. 8 2.4 Device Abbreviations ............................................................................................................................. 9 2.5 Example Configurations ........................................................................................................................ 9 2.6 Overall Physical Diagram ...................................................................................................................... 10

    3 CISCO 4500 HARDWARE .............................................................................................................................. 11

    3.1 Overview ................................................................................................................................................. 11 3.2 Catalyst 4500- Physical Attributes ......................................................................................................... 11

    3.2.1 Hardware Components .................................................................................................................. 11 3.2.2 Physical Specifications .................................................................................................................... 11 3.2.3 Physical Installation ....................................................................................................................... 12 3.2.4 Power Requirements ..................................................................................................................... 12 3.2.5 Cooing Requirements .................................................................................................................... 12

    3.3 Catalyst 4500-X Software Attributes ................................................................................................... 12 3.3.1 Software Revision .......................................................................................................................... 12 3.3.2 Licensing ......................................................................................................................................... 12

    4 NEXUS 5000 HARDWARE ............................................................................................................................ 13

    4.1 Nexus 5672UP Hardware Attributes .................................................................................................... 13 4.1.1 Hardware Components ................................................................................................................. 13 4.1.2 Physical Specifications ................................................................................................................... 13 4.1.3 Power Requirements ..................................................................................................................... 13

    4.2 Nexus 5548 Software Attributes .......................................................................................................... 13 4.2.1 Software Revision .......................................................................................................................... 13 4.2.2 Licensing ......................................................................................................................................... 13

    5 NEW TECHNOLOGIES .................................................................................................................................. 14

    5.1 Overview ................................................................................................................................................ 14 5.2 Virtual Switching System (VSS) ............................................................................................................ 14 5.3 VSS Components ................................................................................................................................... 14 5.4 VSS Domain ID & Switch Numbers ....................................................................................................... 14 5.5 Virtual Switch Link (VSL) Port-Channel and Ports ............................................................................... 15 5.6 VSS Dual Active Link Detection ............................................................................................................ 15 5.7 Converting the Switch to Virtual Switch Mode ................................................................................... 15

    5.7.1 VSS - Single Homed Device Considerations .................................................................................. 15 5.8 Virtual Port Channels (vPC) .................................................................................................................. 16

    5.8.1 Overview ........................................................................................................................................ 16 5.8.2 vPC Components ............................................................................................................................ 16

  • Copyright 2015 Re-Solution. All rights reserved. Page 4 of 32

    5.8.3 vPC Configuration .......................................................................................................................... 17 5.8.4 vPC Considerations ....................................................................................................................... 20 5.8.5 vPC Single Homed Devices (Orphan Ports) .....