Network Virtualization using Extreme Fabric Connect

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Table Of Contents

Table of Contents
Table of Contents
Table of Contents
Table of Figures
Table of Figures
Table of Tables
Conventions
Introduction
Reference Architecture
- Shortest Path Bridging Fabric
- Layer 3 Virtualization Overview
- Layer 2 Virtualization Overview
- Data Center Virtualization Overview
- Fabric Connect Positioning
Guiding Principles
- Fabric Connect and Fabric Attach
- Fabric Extend
- Data Center Architecture
Architecture Components
- User to Network Interface
- Network to Network Interface
- Backbone Core Bridge
- Backbone Edge Bridge
- Customer MAC Address
- Backbone MAC Address
- SMLT-Virtual-BMAC
- IS-IS Area
- IS-IS System ID
- IS-IS Overload Function
- SPB Bridge ID
- SPBM Nick-name
- Dynamic Nick-name Assignment
- Customer VLAN
- Backbone VLAN
- Virtual Services Networks
- I-SID
- Inter-VSN Routing
- Fabric Area Network
- Fabric Attach / Auto-Attach
- FA Server
- FA Client
- FA Proxy
- FA Standalone Proxy
- VPN Routing and Forwarding Instance
- Global Router Table
- Distributed Virtual Routing
  - DVR Domain
  - DVR Controller
  - DVR Leaf
  - DVR Backbone
- Zero Touch Fabric (ZTF)
Foundations for the Service Enabled Fabric
- SPB Service primitives
- SPB Equal Cost Trees (ECT)
IP Routing and L3 Services over Fabric Connect
- Core IGP / GRT IP Shortcuts
- Virtualized L3 VPNs / L3 VSNs
- VPN Security Zones / IP IS-IS Accept Policies
- ISIS IP Route Types and Protocol Preference
L2 Services Over SPB IS-IS Core
- E-LAN / L2 VSNs with CVLAN/Switched UNI
- E-LINE / L2 VSNs with Transparent UNI
- E-TREE / L2 VSNs with Private-VLAN UNI
Fabric Attach
- FA Element Signalling
- FA Service Assignment (I-SID) Signalling
- FA Message Authentication
- FA Zero Touch Provisioning
IP Multicast Enabled VSNs
- Initial Considerations
- IP Multicast Over SPB
- Multicast Services
- SPB Multicast PIM Gateway
  - Deployment Model with PIM-SM
  - PIM Gateway with PIM-SSM
- Inter VSN IP Multicast
Extending the Fabric Across the WAN
- Fabric Extend
- Fabric Extend over IPVPN Service
- Fabric Extend over the Public Internet with IPSec
- Fabric Extend over E-LAN/VPLS Service
- Fabric Extend over E-LINE Service
- VSN Extend with VXLAN Gateway
Distributed Virtual Routing
- Traffic Tromboning Challenges
- DVR Deployment Model
- DVR Host Tracking and Traffic Forwarding
- Eliminating North-South Tromboning
- DVR limitations and Design Alternatives
Quality of Service
- Initial Considerations
- QoS Implementation Over SPB
- QoS Considerations with Fabric Extend
Consolidated Design Overview
- Campus Distribution
- Data Center Distribution
- Data Center Access
High Availability
- System Level Resiliency
  - Hardware Component Redundancy
  - High-Availability Mode
- Network Level Resiliency
- Human Level Resiliency
  - Loop Detection and Protection Mechanisms
Fabric and VSN Security
- Address Space, Routing, and Traffic Separation
- Concealment of the Core Infrastructure
  - Extreme’s Fabric Connect Stealth Networking
- Resistance to Attacks
- Impossibility of Spoofing Attacks
- Stealth Networking Design Guidelines
Fabric as Best Foundation for SDN
Glossary
Reference Documentation
Revisions

Network Virtualization Using Extreme Fabric Connect 
 
© 2019 Extreme Networks, Inc. All rights reserved.    4 
Inter VSN IP Multicast ................................................................................................................................................................... 99 
Extending the Fabric Across the WAN ............................................................................................................................... 102 
Fabric Extend .................................................................................................................................................................................. 103 
Fabric Extend over IPVPN Service.......................................................................................................................................... 107 
Fabric Extend over the Public Internet with IPSec .......................................................................................................... 108 
Fabric Extend over E-LAN/VPLS Service ............................................................................................................................. 110 
Fabric Extend over E-LINE Service .......................................................................................................................................... 111 
VSN Extend with VXLAN Gateway ......................................................................................................................................... 113 
Distributed Virtual Routing ..................................................................................................................................................... 117 
Traffic Tromboning Challenges ................................................................................................................................................. 117 
DVR Deployment Model .............................................................................................................................................................. 118 
DVR Host Tracking and Traffic Forwarding ........................................................................................................................ 124 
Eliminating North-South Tromboning ................................................................................................................................... 127 
DVR limitations and Design Alternatives ............................................................................................................................. 130 
Quality of Service ....................................................................................................................................................................... 131 
Initial Considerations ..................................................................................................................................................................... 131 
QoS Implementation Over SPB ................................................................................................................................................ 133 
QoS Considerations with Fabric Extend ............................................................................................................................... 136 
Consolidated Design Overview ............................................................................................................................................. 138 
Campus Distribution ..................................................................................................................................................................... 138 
Data Center Distribution ............................................................................................................................................................ 140 
Data Center Access ..................................................................................................................................................................... 140 
High Availability ......................................................................................................................................................................... 142 
System Level Resiliency .............................................................................................................................................................. 142 
Hardware Component Redundancy..................................................................................................................................................................... 142 
High-Availability Mode ............................................................................................................................................................................................... 142 
Network Level Resiliency ........................................................................................................................................................... 142 
Fabric Connect Fast-Rerouting .............................................................................................................................................................................. 142 
Virtual LACP ................................................................................................................................................................................................................... 143 
Link Aggregation / Multi-Link Trunking (MLT) ............................................................................................................................................... 144 
Multi-chassis Link Aggregation ..............................................................................................................................................................................146 
Active/Active IP Gateway Redundancy with SMLT ...................................................................................................................................... 148 
DVR On Campus SMLT Distribution ...................................................................................................................................................................... 151 
Load Sharing Over Fabric Connect VSNs .......................................................................................................................................................... 152 
Human Level Resiliency .............................................................................................................................................................. 156 
Loop Detection and Protection Mechanisms ................................................................................................................................................... 157 
Fabric and VSN Security .......................................................................................................................................................... 161 
Address Space, Routing, and Traffic Separation................................................................................................................ 161 