Operation Manual – MSTPH3C S7500 Series Ethernet Switches Chapter 1 MSTP Configuration1-28 system-view[H3C] interface ethernet2/0/1[H3C-Ethernet2/0/1] stp instance 1 cost 2000IV. Configuration example (B)# Change the path cost of Ethernet2/0/1 in MSTI 1 to the default one calculated with theIEEE 802.1D-1998 standard.1) Configure in system view. system-view[H3C] stp pathcost-standard dot1d-19982) Configure in Ethernet port view. system-view[H3C] interface ethernet2/0/1[H3C-Ethernet2/0/1] quit[H3C] stp pathcost-standard dot1d-19981.3.8 Port Priority ConfigurationPort priority is an important criterion on determining the root port. In the same condition,ports with smaller port priority values are more potential to become the root port thanthose with bigger priority values.A port on an MSTP-enabled switch can have different port priorities and play differentroles in different MSTIs. This enables packets of different VLANs to be forwarded alongdifferent physical paths, so that load balancing can be achieved based on VLANs.You can configure port priority in the following two ways.I. Configuring port priority in system viewFollow these steps to configure port priority for specified ports in system view:To do ... Use the command ... RemarksEnter system view system-view —Configure portpriority for specifiedportsstp interface interface-listinstance instance-id portpriority priorityRequiredThe default port priority is 128.II. Configuring port priority in Ethernet port viewFollow these steps to configure port priority for a specified port in Ethernet port view:
