Operation Manual – MSTPH3C S3610&S5510 Series Ethernet Switches Chapter 1 MSTP Configuration1-31To do... Use the command... RemarksEnter system view system-view —EnterEthernetinterfaceviewinterface interface-typeinterface-numberEnterEthernetinterfaceview or portgroup view Enter portgroup viewport-group { manualport-group-name |aggregation agg-id }RequiredUse either command.Configurations made inEthernet interface viewwill take effect on thecurrent port only;configurations made inport group view will takeeffect on all ports in theport group.Configure whether theport(s) connect topoint-to-point linksstp point-to-point { auto| force-false | force-true }OptionalThe default setting isauto; namely the deviceautomatically detectswhether an Ethernet portconnects to apoint-to-point link.Note:z In the case of link aggregation, every port in the aggregation group can beconfigured to connect to a point-to-point link. If a port works in auto-negotiationmode and the negotiation result is full duplex, this port can be configured asconnecting to a point-to-point link.z If a port is configured as connecting to a point-to-point link, the setting takes effectfor the port in all MST instances. If the physical link to which the port connects is nota point-to-point link and you force it to be a point-to-point link by configuration, theconfiguration may incur a temporary loop.II. Configuration example# Configure port Ethernet 1/0/1 as connecting to a point-to-point link. system-view[Sysname] interface Ethernet 1/0/1[Sysname-Ethernet1/0/1] stp point-to-point force-true1.3.12 Configuring the Mode a Port Uses to Recognize/Send MSTP PacketsA port can send/recognize MSTP packets of two formats:z 802.1s-compliant standard format, andz Compatible format