Samsung OfficeServ 7400 General Description Manual

Also see for OfficeServ 7400: System administration guide User guide User instructions Technical manual General description

Contents

CHAPTER 4. OfficeServ 7400 Functions4-6 © Samsung Business CommunicationsMulticast Routingy Internet Group Management Protocol (IGMP)Internet Group Management Protocol (IGMP) protocol manages the multicast group op-erating at one Ethernet segment. It controls the segment so that a user can subscribe orsecede as a member of the specific multicast group.y Distance Vector Multicast Routing Protocol (DVMRP)Distance Vector Multicast Routing Protocol(DVMRP) protocol supports the transmis-sion of multicast data in a network. This protocol sends the multicast data in a unicastpacket format, and the packets are reassembled into multicast data at the destination.DVMRP can be operated in various network formats, including Ethernet, and can evenbe operated via routers that do not support multicast data.y Protocol Independent Multicast-Sparse Mode (PIM-SM)PIM-SM is designed to route multicast packets into multicast groups and to constructthe allocation tree efficiently at WAN. This optimizes the number of data streams thatcan occur in this environment.Routing between VLAN GroupsCommunication between VLAN groups is done through routing between the groups.HTBQ/Bandwidth on Demand (BoD)The queuing process is differentially performed according to the level table where the routingprocess priority for a data server is defined.RTP PriorityThe RTP (Real-Time Transport Protocol) packet is a VoIP media packet. The queuing proc-ess for the RTP packet is prior to that for other data packets, which helps to maintain thetone quality. This function is useful when using the VoIP function in a network where theVoIP packet that should be processed in real time and other packets for general office workare mixed.IP-ToS ProcessThis function checks the ToS (Type of Service) field of the IP header and processes it ac-cording to priority of the corresponding routing in the data server. This function reproducesthe ToS field flowing into the data server, performs the routing process first of all, andheightens the process priority in the next HOP.