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Customizing DVMRP

114064 Rev. B 4-3

Figure 4-1. Multicast Routers

At startup, a DVMRP multicasting router

1. Initializes its routing table with information on all of its local networks

2. Learns the existence of its neighbors by sending a probe for all routes on each

of its multicast interfaces (both physical circuits and tunnels)

3. Receives reports from its neighbors containing the routing information

(including route costs)

Unicast

router

Multicast

router

Multicast

host

Multicast

circuit

Tunnel

Net 1

Net 3

Net 8

Net 6

Net 2

Net 4

Net 5

Net 9

Key

IP00031A

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 125 126

Conﬁguring IP 1
Multicasting Services 1
USA Requirements Only 3
Canada Requirements Only 5
T1 Service 8
Bay Networks Software License 9
(continued) 10
Contents 11
114064 Rev. B 12
About This Guide 21
Conventions 22
Acronyms 23
Bay Networks Customer Service 24
How to Get Help 25
For More Information 25
Chapter 1 27
Multicasting Overview 27
Multicast Addresses 28
Multicast Protocols 29
Chapter 2 31
Starting ST2 33
Click on OK 34
Chapter 3 35
Customizing IGMP 35
IGMP Concepts and Terminology 36
Conﬁguring IGMP on the Router 37
Conﬁguring Logging 38
Enabling and Disabling IGMP 39
Specifying a Query Rate 39
3-6 114064 Rev. B 40
Chapter 4 43
Customizing DVMRP 43
Neighbor Connections 44
Figure 4-1. Multicast Routers 45
Source Route Advertisements 46
How DVMRP Chooses a Route 46
Shortest-Path Trees 48
Setting the Update Interval 49
Conﬁguring Tree Pruning 50
Conﬁguring DVMRP Timers 51
4-10 114064 Rev. B 52
Specifying a Probe Interval 53
Logging Debugging Messages 54
Specifying an MTU Size 54
Conﬁguring DVMRP on a Circuit 55
Specifying a Threshold 56
Conﬁguring a Forwarding Table 57
Conﬁguring a Tunnel 58
Specifying the Cost 59
Specifying a TTL 59
4-18 114064 Rev. B 60
Chapter 5 61
Customizing ST2 Services 61
ST2 Concepts and Terminology 62
Stream Control Messages 64
Neighbors and Tunnels 64
Resource Manager 65
ST2 Features 66
5-8 114064 Rev. B 68
5-10 114064 Rev. B 70
Conﬁguring ST2 on the Router 72
Conﬁguring an ST2 Interface 73
5-14 114064 Rev. B 74
Table 5-2. ST2 Timers 74
Chapter 6 77
Reserving Line Resources 77
Supported Media 78
Starting the Resource Manager 79
Click on Values 80
6-6 114064 Rev. B 82
6-8 114064 Rev. B 84
6-10 114064 Rev. B 86
114064 Rev. B 6-13 89
Appendix A 91
114064 Rev. B A-3 93
A-4 114064 Rev. B 94
114064 Rev. B A-5 95
A-8 114064 Rev. B 98
99
100
114064 Rev. B A-11 101
IGMP Parameters 102
104
A-16 114064 Rev. B 106
IP Conﬁguration Parameters 107
A-18 114064 Rev. B 108
ST2 Parameters 109
114064 Rev. B A-21 111
A-22 114064 Rev. B 112
114064 Rev. B A-23 113
115
A-26 114064 Rev. B 116
Resource Manager Parameters 117
118
118
114064 Rev. B A-29 119
121
A-32 114064 Rev. B 122
114064 Rev. B Index-1 123
114064 Rev. B Index-3 125

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