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


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


Configuration Guide - Ethernet Switching

S7700 and S9700 V200R011C10

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).
Why Is the Recommended Value of STP Network Radius Within 7?

Why Is the Recommended Value of STP Network Radius Within 7?

According to the initial panning tree protocol, the default interval for an STP switch to send BPDUs is 2 seconds. Each switch receives and processes BPDUs for about 1 second each time, and supports a maximum of 20 hops.

According to the RSTP protocol, packets are aged after three intervals (6 seconds) by default. If a hop takes 1 second, a packet times out after 6 hops. Therefore, the recommended value of STP network radius cannot be greater than 7.

There are also some other considerations such as bandwidth usage, storm range, and the maintainability and manageability of the network.

Updated: 2019-10-18

Document ID: EDOC1000178310

Views: 300106

Downloads: 141

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