Configuration Guide
Table Of Contents
- Table of Contents
- 1. Overview
- 2. SPB Terminology
- 3. SPB Support Topologies
- 4. UNI Types
- 5. Summary of SPB Features and ProductRelease Matrix
- 6. SPB Feature and License Matrix
- 7. Scaling
- 8. Migration & Upgrades
- 9. Field Introduction & Support Specifications
- 10. VSP 7000 – Fabric Interconnect
- 11. ISIS Metrics - Optional
- 12. ISIS Accept Policy
- 13. ISIS External Metric
- 14. SPB over L2/L3 networks
- 15. Fabric Attach
- 16. SPB SMLT BEB Design Best Practices
- 17. SPB NNI SMLT – migrating existing SMLT network to SPB
- 18. IS-IS TLV
- 19. SPB Best Practices
- 20. SPB Configuration
- 20.1 SPB Configuration
- 20.1.1 ERS 8800 – Converting from CLI to ACLI
- 20.1.2 SPB and IS-IS Core Configuration
- 20.1.3 SPB NNI Interface Configuration
- 20.1.4 CFM Configuration
- 20.1.5 VSP 7000 – Fabric Interconnect Mesh
- 20.1.6 SMLT – Normal IST
- 20.1.7 SMLT - Virtual IST (vIST)
- 20.1.8 L2VSN Configuration
- 20.1.9 SwitchedUNI Configuration
- 20.1.10 Flex UNI Switched Configuration
- 20.1.11 Transparent UNI Configuration
- 20.1.12 Private VLAN (ETREE) Configuration
- 20.1.13 L3VSN Configuration
- 20.1.14 L3VSN – leaking routes between VRF’s
- 20.1.15 IP Shortcuts
- 20.1.16 IP Shortcut– Suppress IST Network
- 20.1.17 IP Shortcuts – leaking routes between GRT and VRF
- 20.1.18 IP Shortcuts – redistribution of ISIS and OSPF
- 20.1.19 Inter-VSN Routing
- 20.1.20 IPv6 Shortcuts
- 20.1.21 SPB Multicast Configuration
- 20.1.22 Multicast 239.255.255/24 – UPnP Filtering
- 20.1.23 Connectivity Fault Management (CFM) Configuration
- 20.1.24 CFM Configuration Example – 7.1.1.x or higher
- 20.1.25 Fabric Extend Configuration
- 20.1.26 ONA: Assigning a Static IP address to the Open Network Adapter
- 20.1.27 Fabric Extend over Routed Infrastructure using VRF to interconnect to routed network
- 20.1.28 Fabric Extend over Routed Infrastructure using GRT to interconnect to routed network
- 20.1.29 Fabric Extend over E-LAN/VPLS (L2) network using Layer 3 over Layer 2 tunneling using VSP 4000
- 20.1.30 Fabric Extend over E-LAN/VPLS (L2) network using Layer 3 over Layer 2 tunneling with VSP8000 orVSP7200
- 20.1.31 Fabric Extend over E-LAN/VPLS (L2) network using VLAN Tunnels
- 20.1.32 Fabric Attach Configuration
- 20.1.33 Identity Engines – Attribute Details
- 20.1.34 Fabric Attach Base Configuration – Adding a FA Proxy and FA Server
- 20.1.34.1 Fabric Attach – Adding a Platform VLAN on FA Server forManagement VLAN
- 20.1.34.2 Fabric Attach – Adding a L2VSN Service
- 20.1.34.3 Fabric Attach – Adding a L3VSN Service
- 20.1.34.4 Fabric Attach - Adding a WLAN 9100 FA Client with EAPDevice authentication via Identity Engines
- 20.1.34.5 Fabric Attach – Changing the FA authentication key
- 20.1.35 Fabric Attach Proxy Standalone
- 20.2 Using EDM
- 20.1 SPB Configuration
- 21. VLAN and ISID Restrictions using TACACS+via Identity Engines
- 22. Configuration Examples
- 22.1 SPB – Core Setup
- 22.1.1 Configuration
- 22.1.1.1 Configuration Mode
- 22.1.1.2 Auto Save
- 22.1.1.3 VSP 7000 – Rear Port Mode
- 22.1.1.4 Option: Change Spanning Tree mode to MSTP
- 22.1.1.5 System Name
- 22.1.1.6 Option – Configure out-of-band management interface
- 22.1.1.7 Enable VLACP Globally
- 22.1.1.8 IST Configuration – SMLT Cluster switch 4001 & 4002, 9001 & 9002 and 8005 & 8006
- 22.1.1.9 IS-IS and SPB Global Configuration
- 22.1.1.10 IS-IS SPB Interface Configuration
- 22.1.1.11 Remove default VLAN from all SPB ports
- 22.1.1.12 Other best practice items – VLACP and discard untagged frames
- 22.1.1.13 IST Configuration – SMLT Cluster switch 7001 & 7002
- 22.1.1.14 ISIS L1-metric – Optional
- 22.1.1.15 Connectivity Fault Management (CFM) Configuration
- 22.1.1.16 QoS
- 22.1.2 Configuration using EDM – Using 8005 as an example
- 22.1.3 Verify Operations
- 22.1.1 Configuration
- 22.2 SMLT Configuration
- 22.3 SPB L2 VSN Configuration
- 22.4 VSP 7000 & ERS 4800 – In-band Management via L2VSN
- 22.5 Multicast over L2VSN
- 22.6 Inter VSN Routing
- 22.7 Inter-ISID Configuration
- 22.7.1 VRF configuration
- 22.7.2 Verification
- 22.8 SPB L3 VSN – SMLT
- 22.9 Extending L3VSN to the VSP 7000 Cluster via L2VSN
- 22.10 Multicast over L3VSN
- 22.11 SPB IP Shortcuts
- 22.12 Multicast over IP Shortcuts
- 22.1 SPB – Core Setup
- 23. Restrictions and Limitations
- 24. Reference Documentation
©2021 Extreme Networks, Inc. All rights reserved
October 2021
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2. SPB Terminology
2.1
SPB
Shortest Path Bridging (SPB) is being standardized by the IEEE as the next evolution step. It provides
shortest path forwarding using layer 2 to provide shortest path forwarding. SPB uses the IS-IS protocol
operating at layer 2 allowing for large networks with fast convergence, equal cost paths, and easy
provisioning without having to add complex addition protocols in the core to support virtualization of VLAN’s
or VRF’s. In summary, all that is needed is to enable SPB and IS-IS in the core and all the virtualization is
done on the edge.
2.2
SPBM
The 802.1aq standard supports two modes, SPB VID (SPBV) and SPB MAC (SPBM). Only SPBM supports
true virtualization via the use of the 802.1ah MAC-in-MAC encapsulation. SPBV offers shortest path
forwarding but with reduced functionality using 802.1ad Q-in-Q tagging for devices which cannot support
the 802.1ah MAC-in-MAC encapsulation. All Extreme SPB capable switches support exclusively SPBM.
SPBM virtualized services are delineated by ISIDs where the ISID is simply assigned at the BEB to either
a VLAN for virtualized layer 2 services, a multicast group for virtualized multicast services, or to a VRF for
virtualized layer 3 services.
In a SPBM network, each bridge advertises its own unique MAC address using IS-IS which is known as the
system-id. The system-id can also be manually provisioned to ease in trouble shooting when looking at the
layer 2 forwarding table.
2.3
IS-IS
Provisioning an SPB core is as simple as enabling SPB and IS-IS globally on all the nodes and configuring
SPB IS-IS interfaces on the core facing links (NNI links). The IS-IS protocol operates at layer 2, it does not
need IP addresses configured on the links to form IS-IS adjacencies with neighboring switches (like OSPF
does). Hence, there is no need to configure any IP addresses on any of the core links.
IS-IS is a link-state protocol which will compute the shortest open path just like OSPF does. It can therefore
be deployed on any regular (e.g. square or fully meshed core-to-distribution topologies) or irregular (e.g.
ring topologies) fibre plants.
2.4
B-VLAN
Each SPBM network instance is associated with at least one backbone VLAN (B-VLAN) in the core SPBM
network.
This VLAN is used for both control plane traffic and dataplane traffic.
Extreme recommends to always configuring two B-VLANs in the core to allow load
distribution over both B-VLANs.
SPBM alters the behavior of the VLAN. When a B-VLAN is associated with an SPBM network the
following VLAN attributes and behaviors are modified for the B-VLAN:
Flooding is disabled
Broadcasting is disabled