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Using Cisco Unified Communications Manager to
Configure RSVP Agent
This chapter describes the steps for configuring Resource Reservation Protocol (RSVP) agent support
on Cisco VGD 1T3 voice gateways in a Cisco Unified Communications Manager network. The RSVP
agent feature implements an RSVP agent on Cisco IOS voice gateways that support Cisco Unified
Communications Manager Version 5.0.1. The RSVP agent enables Cisco Unified Communications
Manager to provide resource reservation for voice and video media to ensure QoS and call admission
control (CAC). Cisco Unified Communications Manager controls the RSVP agent through Skinny Client
Control Protocol (SCCP). This signaling is independent of the signaling protocol used for the call so
SCCP, SIP, H.323, and MGCP calls can all use the RSVP agent.
Prerequisites for RSVP Agent
Prerequisites for RSVP Agent are defined in the following sections:
•
Cisco IOS Voice Gateway, page 167
•
Cisco Unified Communications Manager, page 168
Cisco IOS Voice Gateway
The following prerequisites pertain specifically to the configuration of RSVP Agent on a Cisco IOS
voice gateway:
•
Cisco IOS Release 12.4(20)YA or a later release.
•
Transcoder and MTP services must be configured on the voice gateway. See
“Configuring Enhanced
Conferencing and Transcoding for Voice Gateway Routers” on page 67
.
•
SCCP must be enabled on the local interface that the voice gateway uses to register with
Cisco Unified Communications Manager. See the
“Enabling SCCP on the Cisco Unified
Communications Manager Interface” section on page 81
.
•
The ip rsvp bandwidth command must be enabled on all interfaces.
•
The ip rsvp policy preempt command must be enabled.