3Com MSR 50, MSR 30 manual Related commands qos reserved-bandwidth, 1835

1835

Use the undo qos rtpq command to disable the RTP queuing feature of the interface.

By default, RTP queuing feature is disabled.

This command is applied to the delay-sensitive applications, real-time voice transmission for example. Configured with the qos rtpq command, the system will serve the voice services first among all other services.

The parameter bandwidth should be set greater than the service-required bandwidth so as to prevent conflict caused by the burst traffic.

However, the bandwidth should be no greater than 80% of the total bandwidth. If you need to configure the bandwidth to be greater than 80% of the total bandwidth, please first change the maximum reserved bandwidth via qos reserved-bandwidthcommand.

In bandwidth allocation, the bandwidth for data load, IP header, UDP header and RTP header is allocated, except that for the Layer 2 frame header. Therefore, it is obligatory to reserve 20% of the total bandwidth.

Related commands: qos reserved-bandwidth.

Examples # Enable RTP priority queue feature on Serial 1/0. The starting UDP port number is 16384. The end UDP port number is 32767. The RTP packets use 64 kbps bandwidth. If network convergence happens, the packets will enter RTP priority queue.

<Sysname> system-view [Sysname] interface Serial1/0

[Sysname-serial1/0] qos rtpq start-port 16384 end-port 32767 bandwidth 64