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S9300, S9300E, and S9300X V200R012C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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(Optional) Configuring a Priority for a Switch in an MSTI

(Optional) Configuring a Priority for a Switch in an MSTI

Context

In an MSTI, there can be only one root bridge, which is the logical center of the MSTI. The root bridge should be a high-performance switch; however, the priority of such a device may not be the highest on the network. To ensure that such a device is selected as the root bridge, set a low priority for low-performance switches, and set a high priority for high-performance switches. A smaller priority value indicates a higher priority.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run stp [ instance instance-id ] priority priority

    A priority is set for the switch in an MSTI.

    The default priority value of the switch is 32768.

    If instance-id is not specified, a priority is set for the switch in MSTI 0.

    NOTE:

    If the stp [ instance instance-id ] root primary or stp [ instance instance-id ] root secondary command has been executed to configure the device as the root bridge or secondary root bridge, to change the device priority, run the undo stp [ instance instance-id ] root command to disable the root bridge or secondary root bridge function and run the stp [ instance instance-id ] priority priority command to set a priority.

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Updated: 2019-01-18

Document ID: EDOC1100038290

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