Design Reference

Loop prevention and detection................................................................................................ 43
SLPP example scenarios....................................................................................................... 45
Chapter 9: Layer 2 switch clustering and SMLT.................................................................. 50
Split MultiLink Trunk configuration.......................................................................................... 50
Chapter 10: Layer 3 switch clustering and RSMLT............................................................. 54
Routed SMLT........................................................................................................................ 54
Switch clustering topologies and interoperability with other products.......................................... 61
Chapter 11: Layer 3 switch clustering and multicast SMLT............................................... 62
General guidelines................................................................................................................ 62
Multicast triangle topology...................................................................................................... 64
Square and full-mesh topology multicast guidelines................................................................. 66
SMLT and multicast traffic issues............................................................................................ 69
Chapter 12: Spanning tree..................................................................................................... 72
Spanning tree and protection against isolated VLANs............................................................... 72
MSTP and RSTP considerations............................................................................................ 73
Chapter 13: Layer 3 network design..................................................................................... 75
VRF Lite............................................................................................................................... 75
Virtual Router Redundancy Protocol....................................................................................... 77
Open Shortest Path First........................................................................................................ 81
Border Gateway Protocol....................................................................................................... 85
IP routed interface scaling...................................................................................................... 90
IPv6..................................................................................................................................... 90
Chapter 14: SPBM design guidelines................................................................................... 93
802.1aq standard.................................................................................................................. 93
VLANs without member ports................................................................................................. 95
Provisioning.......................................................................................................................... 96
Implementation options.......................................................................................................... 97
Reference architectures....................................................................................................... 102
Solution-specific reference architectures............................................................................... 115
Best practices..................................................................................................................... 120
SPBM restrictions and limitations.......................................................................................... 122
IP multicast over Fabric Connect restrictions......................................................................... 123
Chapter 15: IP multicast network design............................................................................ 125
Multicast and VRF-Lite......................................................................................................... 125
Multicast and MultiLink Trunking considerations..................................................................... 126
Multicast scalability design rules........................................................................................... 126
IP multicast address range restrictions.................................................................................. 127
Multicast MAC address mapping considerations.................................................................... 128
Dynamic multicast configuration changes.............................................................................. 130
IGMPv3 backward compatibility............................................................................................ 130
IGMP Layer 2 Querier.......................................................................................................... 130
TTL in IP multicast packets.................................................................................................. 131
Contents
June 2015 Network Design Reference for Avaya VSP 4000 Series 5
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