RMX 2000 Administrator's Guide Version 7.6.1 - Polycom

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Polycom RMX 1500/2000/4000 Administrator’s Guide Network Traffic Control A Network Traffic Control mechanism has been added to the RMX that controls the level of UDP packets generated by the system. Network Traffic Control regulates a set of queuing Only supported in the MPMx Card Configuration mode. systems and mechanisms by which UDP packets are received and “transmitted” to the network router. During a conference, MPMx cards occasionally blast-out UDP packets which can cause overloads on the network. RMX bandwidth usage can increase to above the designated conference participant line rate settings, causing network bandwidth issues such as latency and packet loss. Three Network Traffic Control Flags are added: • ENABLE_TC_PACKAGE - default = NO. When the flag is set to NO, Network Traffic Control is disabled on the RMX. Set the flag to YES to enable Network Traffic Control. • TC_BURST_SIZE - default = 10, flag range: 1-30. This flag regulates the Traffic Control buffer or maxburst size as a percentage of the participant line rate. In general, higher traffic rates require a larger buffer. For example, if the flag is set to 10 and the participants line rate is 2MB, then the burst size is 200Kbps. • TC_LATENCY_SIZE - default = 500, flag range: 1-1000 (in milliseconds). This flag limits the latency (in milliseconds) or the number of bytes that can be present in a queue. SIP Proxy Failover With Polycom® Distributed Media Application (DMA) 7000 RMX systems that are part of a DMA environment can benefit from DMA’s SIP Proxy Failover functionality. SIP Proxy Failover is supported in DMA’s Local Clustering mode with redundancy achieved by configuring two DMA servers to share a single virtual IP address. The virtual IP address is used by the RMX as the IP address of its SIP Proxy. No additional configuration is needed on the RMX. Should a SIP Proxy failure occur in one of the DMA servers: • The other DMA server takes over as SIP Proxy. • Ongoing calls may be disconnected. • Previously ongoing calls will have to be re-connected using the original IP address, registration and connection parameters. • New calls will connect using the original IP address, registration and connection parameters. 15-32 Polycom, Inc.
RMX Network Port Usage Chapter 15-Network Services The following table summarizes the port numbers and their usage in the RMX 1500/2000/ 4000: Table 15-19 RMX Network Port Usage Summary Connection Type Port Number Protocol Description Configurable HTTP 80 TCP Management between the RMX and RMX Web Client HTTPS 443 TCP Secured Management between the RMX and RMX Web Client DNS 53 TCP Domain name server. Can be disabled in the IP Network Service DHCP 68 TCP Dynamic Host Configuration Protocol SSH 22 TCP Secured shell. It is the RMX terminal. NTP 123 UDP Network Time Protocol. Enables access to a time server on the network. H.323 GK RAS H.323 Q.931 1720 - incoming ; 49152- 59999 - outgoing H.323 H.245 49152 - 59999 SIP server 5060 60000 1719 UDP Gatekeeper RAS messages traffic TCP H.323 Q.931 call signaling. Each outgoing call has a separate port. The port for each outgoing call is allocated dynamically. TCP H.245 control. Each outgoing call has a separate port. The port for each outgoing call is allocated dynamically. It can be avoided by tunneling. UDP, TCP Connection to the SIP Server. Sometimes port 60000 is used when the system cannot reuse the TCP port. This port can be set in the Central signaling (CS) configuration file. Polycom, Inc. 15-33 No No Can be disabled in the IP Network Service No No No Yes - for outgoing calls only. It is configured in the Fixed Ports section of the IP service. Yes - for outgoing calls only. It is configured in the Fixed Ports section of the IP service. Yes - in the IP service
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RMX 2000 Administrator's Guide Version 7.6.1 - Polycom

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