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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
OL-26895-01
Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
vbr-rt
vbr-rt
To configure the real-time variable bit rate (VBR) for VoATM voice connections, use the vbr-rt
command in the appropriate configuration mode. To disable VBR for voice connections, use the no form
of this command.
vbr-rt peak-rate average-rate burst
no vbr-rt
Syntax Description
Command Default No real-time VBR settings are configured.
Command Modes ATM Bundle-vc configuration for ATM VC bundle members
ATM PVP configuration for an ATM PVP
Interface-ATM-VC configuration for an ATM permanent virtual connection (PVC) or switched virtual
circuit (SVC)
VC-class configuration for a virtual circuit (VC) class
Command History
Usage Guidelines This command configures traffic shaping between voice and data PVCs. Traffic shaping is required so
that the carrier does not discard calls. To configure voice and data traffic shaping, you must configure
the peak, average, and burst options for voice traffic. Configure the burst value if the PVC will carry
bursty traffic. Peak, average, and burst values are needed so that the PVC can effectively handle the
bandwidth for the number of voice calls.
peak-rate Peak information rate (PIR) for the voice connection, in kilobits per second
(kbps). If it does not exceed your carrier’s line rate, set it to the line rate.
Range is from 56 to 10000.
average-rate Average information rate (AIR) for the voice connection, in kbps.
burst Burst size, in number of cells. Range is from 0 to 65536.
Release Modification
12.0 This command was introduced on the Cisco MC3810.
12.1(5)XM This command was implemented on Cisco 3600 series routers and modified
to support Simple Gateway Control Protocol (SGCP) and Media Gateway
Control Protocol (MGCP).
12.2(2)T This command was integrated into Cisco IOS Release 12.2(2)T.
12.2(11)T This command was implemented on the Cisco AS5300 and Cisco AS5850.
Cisco IOS XE Release
2.3
This command was made available in ATM PVP configuration mode.
12.4(20)MR This command was integrated into Cisco IOS Release 12.4(20)MR.
12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.
15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.
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