Design Reference

MultiLink Trunking................................................................................................................. 42
802.3ad-based link aggregation.............................................................................................. 43
Chapter 10: Layer 2 loop prevention..................................................................................... 45
Loop prevention and detection................................................................................................ 45
SLPP example scenarios....................................................................................................... 47
Chapter 11: Spanning tree..................................................................................................... 52
Spanning tree and protection against isolated VLANs............................................................... 52
MSTP and RSTP considerations............................................................................................ 53
Chapter 12: Layer 3 network design..................................................................................... 55
VRF Lite............................................................................................................................... 55
Virtual Router Redundancy Protocol....................................................................................... 57
Open Shortest Path First........................................................................................................ 61
Border Gateway Protocol....................................................................................................... 65
IP routed interface scaling...................................................................................................... 70
Chapter 13: SPBM design guidelines................................................................................... 71
802.1aq standard.................................................................................................................. 71
VLANs without member ports................................................................................................. 73
Provisioning.......................................................................................................................... 74
Implementation options.......................................................................................................... 75
Reference architectures......................................................................................................... 81
Solution-specific reference architectures................................................................................. 94
Best practices....................................................................................................................... 99
SPBM restrictions and limitations.......................................................................................... 101
IP multicast over SPBM restrictions...................................................................................... 102
Chapter 14: IP multicast network design............................................................................ 104
Multicast and VRF-Lite......................................................................................................... 104
Multicast and MultiLink Trunking considerations..................................................................... 104
Multicast scalability design rules........................................................................................... 105
IP multicast address range restrictions.................................................................................. 106
Multicast MAC address mapping considerations.................................................................... 107
Dynamic multicast configuration changes.............................................................................. 109
IGMPv3 backward compatibility............................................................................................ 109
IGMP Layer 2 Querier.......................................................................................................... 109
TTL in IP multicast packets.................................................................................................. 110
Multicast MAC filtering......................................................................................................... 110
Guidelines for multicast access policies................................................................................. 111
Multicast for multimedia....................................................................................................... 111
Chapter 15: System and network stability and security................................................... 114
DoS protection mechanisms................................................................................................. 114
Damage prevention............................................................................................................. 115
Data plane security.............................................................................................................. 117
Control plane security.......................................................................................................... 119
Contents
December 2014 Network Design Reference for Avaya VSP 4000 Series 5
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