Design Reference

Spanning tree and protection against isolated VLANs............................................................... 52
MSTP and RSTP considerations............................................................................................ 53
Chapter 10: 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
IPv6..................................................................................................................................... 70
Chapter 11: SPBM design guidelines................................................................................... 73
802.1aq standard.................................................................................................................. 73
VLANs without member ports................................................................................................. 75
Provisioning.......................................................................................................................... 76
Implementation options.......................................................................................................... 77
Reference architectures......................................................................................................... 83
Solution-specific reference architectures................................................................................. 96
Best practices..................................................................................................................... 101
SPBM restrictions and limitations.......................................................................................... 103
IP multicast over SPBM restrictions...................................................................................... 104
Chapter 12: IP multicast network design............................................................................ 106
Multicast and VRF-Lite......................................................................................................... 106
Multicast and MultiLink Trunking considerations..................................................................... 107
Multicast scalability design rules........................................................................................... 107
IP multicast address range restrictions.................................................................................. 108
Multicast MAC address mapping considerations.................................................................... 109
Dynamic multicast configuration changes.............................................................................. 111
IGMPv3 backward compatibility............................................................................................ 111
IGMP Layer 2 Querier.......................................................................................................... 111
TTL in IP multicast packets.................................................................................................. 112
Multicast MAC filtering......................................................................................................... 112
Guidelines for multicast access policies................................................................................. 113
Multicast for multimedia....................................................................................................... 113
Chapter 13: System and network stability and security................................................... 116
DoS protection mechanisms................................................................................................. 116
Damage prevention............................................................................................................. 117
Data plane security.............................................................................................................. 119
Control plane security.......................................................................................................... 121
Additional information.......................................................................................................... 126
Chapter 14: QoS design guidelines.................................................................................... 128
QoS mechanisms................................................................................................................ 128
QoS interface considerations................................................................................................ 131
Network congestion and QoS design.................................................................................... 132
QoS examples and recommendations................................................................................... 133
Contents
January 2015 Network Design Reference for Avaya VSP 4000 Series 5
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