ip multicast dvmrp tunnels define
511
ip multicast dvmrp
✓
3500
✓
9000
9400
3900
9300
tunnels define
For CoreBuilder 9000: Applies to Layer 3 switching modules only.
Defines one end point of a DVMRP tunnel. The other tunnel end point lies
on an IP multicast routing interface on a different system and
subnetwork. One or more unicast routers lie between these tunnel end
points.
Valid Minimum Abbreviation
ip m d t d
Important Considerations
■
IP multicast tunnels are not required in all networks. Configure a
tunnel only if you need to have IP multicast traffic forwarded through
one or more routers that do not understand IP multicast protocols and
would therefore filter IP multicast packets. Because IP multicast
packets are encapsulated in unicast format at the tunnel entrance
point, the interim routers in the tunnel forward the packets onward
toward the other tunnel exit point.
■
Think of an IP multicast tunnel end point as being layered on top of a
regular DVMRP routing interface. Therefore, before you can define a
multicast tunnel end point in your system, you must first define at
least one IP virtual LAN (VLAN), define at least one IP interface, and
enable DVMRP on the interface.
■
The remote tunnel end point must lie on a different system and
subnetwork.
■
You must define the tunnel on both end points — that is, on both the
local system and the remote system — even though you specify the
address of the remote interface in the local system.
■
When you define a tunnel with local and remote addresses, the
system automatically assigns the value 1 as both the tunnel metric and
the tunnel TTL threshold, as shown in the IP multicast DVMRP tunnel
summary display. You can change these values through menu options.
■
IP multicast interfaces and tunnels have similar characteristics, such as
TTL threshold and metric. The characteristics of a tunnel do not have
to match the characteristics of the interface on which it is configured.
■
You can define multiple tunnel end points on the same local routing
interface in your system, but these tunnels must lead to different
remote routing interfaces.
Summary of Contents for CoreBuilder 9000
Page 18: ......
Page 26: ...26 ABOUT THIS GUIDE ...
Page 27: ...I GETTING STARTED Chapter 1 Administration Overview Chapter 2 Command Summary ...
Page 28: ......
Page 64: ...64 CHAPTER 2 COMMAND SUMMARY ...
Page 65: ...II SYSTEM LEVEL FUNCTIONS Chapter 3 System Environment Chapter 4 Module Environment ...
Page 66: ......
Page 148: ......
Page 202: ......
Page 248: ...248 CHAPTER 8 FIBER DISTRIBUTED DATA INTERFACE FDDI ...
Page 250: ......
Page 320: ...320 CHAPTER 11 TRUNKS ...
Page 368: ...368 CHAPTER 14 VIRTUAL LANS VLANS ...
Page 394: ......
Page 502: ...502 CHAPTER 17 VIRTUAL ROUTER REDUNDANCY VRRP ...
Page 604: ...604 CHAPTER 19 OPEN SHORTEST PATH FIRST OSPF ...
Page 660: ...660 CHAPTER 20 IPX ...
Page 687: ...VII TRAFFIC POLICY Chapter 22 Quality of Service QoS and RSVP ...
Page 688: ......
Page 744: ...744 CHAPTER 22 QUALITY OF SERVICE QOS AND RSVP ...
Page 745: ...VIII MONITORING Chapter 23 Event Log Chapter 24 Roving Analysis ...
Page 746: ......
Page 754: ...754 CHAPTER 23 EVENT LOG ...
Page 764: ...764 CHAPTER 24 ROVING ANALYSIS ...
Page 765: ...IX REFERENCE Appendix A Technical Support ...
Page 766: ......
Page 772: ...772 APPENDIX A TECHNICAL SUPPORT ...
Page 784: ......