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The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks.The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails.. As the name suggests, STP creates a spanning tree that ...
Spanning Tree Protocol - Lucid Resource ... rstp •. .
Blocking State: The switch port does not participate in the data forwarding process.It listens to network traffic to learn about the network topology and gathers information about other switches and ports. Listening State: The switch port begins to actively participate in the STP protocol by sending and receiving BPDU (Bridge Protocol Data Unit) messages.
Hi all. What happens if the output for: ITLABSW#sh spanning-tree detail | i ieee|occur|from|is exec VLAN0001 is executing the rstp compatible Spanning Tree protocol Number of topology changes 187927 last change occurred 00:01 ago <-time rec'd from Port-Channel12 <--interface that received the TCN. Shows no interface, like int the follwing example:
New Port States and Port Roles. The 802.1D is defined in these five different port states: disabled. listening. learning. blocking. forwarding. See the table in the Port States section of this document for more information about port states.. The state of the port is mixed, whether it blocks or forwards traffic, and the role it plays in the active topology (root port, designated port, and so on).
Solved: hi all could someone tell me please how to configure cisco switch to send SNMP Trap to monitoring server if spanning tree protocol failed ! thanks,
文章浏览阅读613次。本文详细介绍了stp（生成树协议）的原理，包括它如何消除环路和提供链路备份。重点讲解了bpdu（网桥协议数据单元）的角色和选举规则，以及端口角色和状态。同时，对比了mstp和rstp在解决二层网络环路问题上的应用。
The most 50 significant ports are listed here: The following are some of the most common service names, transport protocol names, and port numbers used to differentiate between specific services that employ TCP, UDP, DCCP, and SCTP.
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