user manual

Cisco Hoot and Holler over IP
Configuration Examples
VC-843
Cisco IOS Voice, Video, and Fax Configuration Guide
Configuration Examples
This section provides a series of configuration examples to help you become familiar with voice
multicasting. These examples also show how to ensure that each configuration is working properly
before proceeding to the next step.
• Voice Multicasting over an Ethernet LAN, page 844
• Voice Multicasting over a WAN, page 847
• Cisco Hoot and Holler over IP with Ethernet Topology (Two Hoot Groups)
• Cisco Hoot and Holler over IP with Frame-Relay Topology (One Hoot Group)
Note In all the following configuration examples, the routers are configured with the interface command
and the name tag vif1. This is a virtual interface that is similar to a loopback interface—it is a logical
IP interface that is always up when the router is active. In addition, it must be configured so that the
Cisco hoot and holler over IP packets that are locally mixed on the DSPs can be fast-switched along
with the other data packets. This interface needs to reside on its own unique subnet, and that subnet
should be included in the routing protocol updates (RIP, OSPF, and so on).
Step 8
Router(config)# controller {t1 | e1} number
Enters controller configuration mode and selects
the T1 or E1 controller to configure.
Step 9
Router(config-controller)# ds0-group ds0-group-no
timeslots timeslot-list type type
Maps a group of time slots to a DS0 group.
Step 10
Router(config-controller)# exit
Exits controller configuration mode.
Step 11
Router(config)# voice-port
{slot-number/subunit-number/port} |
{slot/port:ds0-group-no}
Enters voice-port configuration mode and
configures a DS0 group that was created in Step 9
in this configuration task table.
Step 12
Router(config-voice-port)# connection {plar | tie-line
| plar-opx} digits | {trunk digits [answer-mode]}
Ties the connection trunk to a multicast address.
This command is repeated for each DS0 group. All
groups use the same multicast address if
connecting to the same multicast session. (Use the
trunk keyword and the digit argument for hoot and
holler applications.)
Step 13
Router(config-voice-port)# voice-class permanent tag
Specifies the receive-only port.
Command Purpose