Operation Manual – PortH3C S9500 Series Routing Switches Chapter 5 RPR Port Configuration5-1Chapter 5 RPR Port Configuration5.1 RPR Standard OverviewResilient packet ring (RPR) is a new MAC layer protocol designed for transferring massdata services over MANs. With multiple technology advantages, such as high utilizationof ring bandwidth, self-healing ability, and plug and play nodes, it can match therequirements for next-generation MANs. RPR adopts two-fiber bi-directional ringtopology.5.1.1 RPR Port OverviewRPR contains three port views: one logical port and two physical ports. Most commandconfigurations related to Ethernet ports can be inherited to the RPR logical port. Youcan make physical layer-associated settings in the physical port view, such as SDHoverhead configuration. RPR physical ports include POS and 10GE ports. Thefollowing section describes both RPR POS and RPR 10GE port views, but presentsonly RPR POS examples. A physical port serves as the slave interface of the logicalport. For example, if the logical port is RPR POS3/1/1, the physical ports are RPRPOS3/1/1.1 and RPR POS3/1/1.2.5.2 Configuring RPR Ports5.2.1 Configuration PreparationsNote:z Many configuration commands for an RPR logical port are the same asconfiguration commands for an Ethernet port. All the following Ethernetconfiguration commands can be used for the configuration of RPR ports: broadcastsuppression, RPR port description, setting link types for RPR ports, adding accessports to a specified VLAN, adding hybrid ports to a specified VLAN, adding trunkports to a specified VLAN, setting default VLAN ID for a hybrid RPR port, settingdefault VLAN ID for a trunk RPR port, traffic control, priority configuration, loopback.You can also refer to Chapter 2 “Ethernet Port Configuration”.z RPR logical ports support the STP and QoS/ACL functions.