Netgear XCM8810 Chassis User Manual - Page 547

NETGEAR 8800 User Manual Table 53. RSTP Link Types Port Link Type Description Auto Specifies the switch to automatically determine the port link type. An auto link behaves like a point-to-point link if the link is in full-duplex mode or if link aggregation is enabled on the port. Otherwise, the link behaves like a broadcast link used for 802.1w configurations. Edge Specifies a port that does not have a bridge attached. An edge port is held in the STP forwarding state unless a BPDU is received by the port. In that case, the port behaves as a normal RSTP port. The port is no longer considered an edge port. If the port does not receive subsequent BPDUs during a pre-determined time, the port attempts to become an edge port. An edge port is placed and held in the STP forwarding state unless a BPDU is received by the port. In that case, an edge port enters and remains in the blocking state until it stops receiving BPDUs and the message age timer expires. Broadcast Specifies a port attached to a LAN segment with more than two bridges. A port with a broadcast link type cannot participate in rapid reconfiguration using RSTP or MSTP. By default, all ports are broadcast links. Point-to-point Specifies a port attached to a LAN segment with only two bridges. A port with point-to-point link type can participate in rapid reconfiguration. Used for 802.1w and MSTP configurations. Configuring Link Types By default, all ports are broadcast links. To configure the ports in an STPD, use the following command: configure stpd ports link-type [[auto | broadcast | point-to-point] | edge {edge-safeguard [enable | disable] {bpdu-restrict} {recovery-timeout }}] Where the following is true: • auto-Configures the ports as auto links. If the link is in full-duplex mode or if link aggregation is enabled on the port, an auto link behaves like a point-to-point link. • broadcast-Configures the ports as broadcast ports. By default, all ports are broadcast links. • point-to-point-Configures the ports for rapid reconfiguration in an RSTP or MSTP environment. • edge-Configures the ports as edge ports. For information about edge safeguard, see Configuring Edge Safeguard , next. To change the existing configuration of a port in an STPD, and return the port to factory defaults, use the following command: unconfigure stpd ports link-type To display detailed information about the ports in an STPD, use the following command: show {stpd} ports {[detail | {detail}]} Chapter 18. STP | 547