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3.1.4 Test the Result ................................................................................. 96
3.1.5 What Could Go Wrong ................................................................. 97
3.2 How to configure RSTP in a ring topology ........................................... 98
3.2.1 Configure Switch ............................................................................ 99
3.2.2 Test the Result ............................................................................... 102
3.2.3 What Could Go Wrong ............................................................... 104
3.3 How to configure VRRP to provide hosts with a redundant gateway
..................................................................................................................... 105
3.3.1 Configuration in the Gateway-A .............................................. 106
3.3.2 Configuration in the Gateway-B ............................................... 109
3.3.3 Test the Result ............................................................................... 112
3.3.4 What Could Go Wrong? ............................................................. 114
3.4 How to configure bandwidth control to limit incoming or outgoing
traffic rate ................................................................................................... 115
3.4.1 Configure Switch .......................................................................... 116
3.4.2 Test the Result ............................................................................... 117
3.5 How to configure ACL to rate limit IP traffic ...................................... 118
3.5.1 Configure VLAN and Route Traffic ............................................ 119
3.5.2 Configure the Classifier ............................................................... 120
3.5.3 Configure the ACL (Policy Rule) ................................................ 122
3.5.4 Test the Result ............................................................................... 124
3.5.5 What Could Go Wrong ............................................................... 126
Designing an IPTV Network ....................................................................... 127
4.1 Introduction for IGMP .......................................................................... 127
4.1.1 What are General Queries and Group Specific Queries? .... 127
4.1.2 What are IGMP Snooping Querier Modes? ............................. 127
4.1.3 What are the differences between IGMP Snooping
fast/normal/immediate leave? .......................................................... 128
4.2 How to configure IGMP routing for multicast clients in a different LAN
..................................................................................................................... 129
4.2.1 Configure Switch-1 ...................................................................... 130
4.2.2 Configure Switch-2 ...................................................................... 131
4.2.3 Test the Result ............................................................................... 132
4.2.4 What Could Go Wrong ............................................................... 133
4.3 How to configure IGMP Snooping for multicast clients in the same
LAN .............................................................................................................. 134