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Configure RSVP for Dial Peers
Configuring Voice over IP for the Cisco 3600 Series VC-33
To give real-time voice traffic precedence over other IP network traffic, use the following commands,
beginning in global configuration mode:
In IP Precedence, the numbers 1 through 5 identify classes for IP flows; the numbers 6 through 7 are
used for network and backbone routing and updates.
For example, to ensure that voice traffic associated with VoIP dial peer 103 is given a higher priority
than other IP network traffic, enter the following:
dial-peer voice 103 voip
ip precedence 5
In this example, when an IP call leg is associated with VoIP dial peer 103, all packets transmitted to
the IP network via this dial peer will have their precedence bits set to 5. If the networks receiving
these packets have been configured to recognize precedence bits, the packets will be given priority
over packets with a lower configured precedence value.
Configure RSVP for Dial Peers
If you have configured your WAN or LAN interfaces for RSVP, you must configure the QoS for any
associated VoIP peers. To configure quality of service for a selected VoIP peer, use the following
commands, starting in global configuration mode:
Note We suggest that you select controlled-load for the requested quality of service.
For example, to specify guaranteed delay QoS for VoIP dial peer 108, enter the following:
dial-peer voice 108 voip
destination-pattern +14085551234
req-qos controlled-load
session target ipv4:10.0.0.8
In this example, every time a connection is made through VoIP dial peer 108, an RSVP reservation
request is made between the local router, all intermediate routers in the path, and the final destination
router.
Step Command Purpose
1 dial-peer voice number voip Enter the dial-peer configuration mode to configure a
VoIP peer.
2 ip precedence number Select a precedence level for the voice traffic associated
with that dial peer.
Step Command Purpose
1 dial-peer voice number voip Enter the dial-peer configuration mode to configure
a VoIP peer.
2 req-qos [best-effort |
controlled-load | guaranteed-delay]
Specify the desired quality of service to be used.