No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
(Optional) Configuring a Path Cost of a Port in an MSTI

(Optional) Configuring a Path Cost of a Port in an MSTI

Context

A path cost is port-specific and is used by MSTP to select a link.

Path costs of ports are an important metric used in spanning tree calculation and determine root port selection in an MSTI. The port with the lowest path cost to the root bridge is selected as the root port. Setting different path costs for a port in different MSTIs allows VLAN traffic to be transmitted along different physical links for load balancing.

If loops occur on a network, it is recommended that you set a large path cost for ports with low link rates.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    stp pathcost-standard { dot1d-1998 | dot1t | legacy }

    A path cost calculation method is configured.

    By default, the IEEE 802.1t standard (dot1t) is used to calculate the path cost.

    All switches on a network must use the same path cost calculation method.

  3. Run:

    interface interface-type interface-number

    The Ethernet interface view is displayed.

  4. Run:

    stp instance instance-id cost cost

    A path cost is set for the port in the current MSTI.

    • When the Huawei calculation method is used, cost ranges from 1 to 200000.
    • When the IEEE 802.1d standard method is used, cost ranges from 1 to 65535.
    • When the IEEE 802.1t standard method is used, cost ranges from 1 to 200000000.

Translation
Download
Updated: 2019-08-21

Document ID: EDOC1000142081

Views: 273855

Downloads: 420

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next