2024年12月2日 · 在STP的基础上，RSTP（ Rapid Spanning Tree Protocol，快速生成树协议）和MSTP（Multiple Spanning Tree Protocol，多生成树协议）进一步优化了生成树的收敛速度和网络资源的利用。 RSTP相对于STP的主要改进是更快...

2023年2月9日 · RSTP (IEEE 802.1w) natively includes most of the Cisco proprietary enhancements to the 802.1D spanning tree, such as BackboneFast, UplinkFast, and PortFast. RSTP can achieve much faster convergence in a properly configured network, sometimes in the order of a few hundred milliseconds.

2017年2月13日 · 要達成以上幾項進化，RSTP 在 STP 的基礎上作出了兩項修改，包括 Port Role 及 Port State，另外又加入了 Link type 的概念，以下逐一說明。 為了讓我們容易適應，RSTP 源用了大部份 STP 的指令，這算 Cisco 貼心，由 STP 改用 RSTP 所需的工夫不多，就一句 spanning-tree mode rapid-pvst 即可。 使用 STP 時，會見到 Protocol 一行顥示為 ieee，代表正在使用傳統 STP。 Spanning tree enabled protocol ieee . Root ID Priority 24577. Address …

2022年8月1日 · 本文详细介绍了RSTP（快速生成树协议）的端口角色，包括根端口、指定端口、替代端口和备份接口，并通过图解进行了清晰展示。 此外，还深入解析了RSTP的端口状态、协商机制、拓扑改变机制以及BPDU老化时间，揭示了RSTP比STP更快收敛的原因。 最后，文章讨论了交换机接口命名的含义与运行机制，强调了全双工接口在快速收敛中的作用。 （注：与STP相同的知识点就不再细说，请读者前往以下链接：） (45条消息) STP生成树（端口状态+端口角 …

Rapid spanning tree only has three port states: You already know about learning and forwarding but discarding is a new port state. Basically, it combines the blocking and listening port states. Here’s a nice overview: Port active in topology? Learns MAC addresses? Do you remember all the other port roles that spanning tree has?

2021年11月29日 · RSTP is the more improved and advanced version of STP which is a layer 2 protocol that prevents bridge loops and broadcast storms in local networks with redundant connections. Rapid spanning tree protocol has faster convergence and it is also backward-compatible with STP.

2024年4月3日 · rstp中，当存在ap端口的交换机其rp端口所在链路发生拥塞，导致rp长时间收不到bpdu报文时，ap端口会转为根端口，而根端口会转为指定端口，从而形成环路。bpdu保护只是对边缘端口生效；lsw1的ap端口收到此bpdu发现位次优bpdu，会马上发送本地最优的bpdu（p置位）发给对方，同时将自身的ap端口转为dp端口。

RSTP identifies certain links as point to point. When a point-to-point link fails, the alternate link can transition to the forwarding state, which speeds up convergence. Why is RSTP the Default Spanning-Tree Protocol? RSTP is faster than STP. Voice and video work better with RSTP than they do with STP. RSTP supports more ports than MSTP or VSTP.

2016年2月29日 · Shared Link: This is a link that connects RSTP to two or more RSTP switches. Most of the time these will be point to point links since modern switches operate in full duplex, this will allow RSTP to define it as a point to point port type, and ports that connect to hubs will only operate in half duplex where the switch will assume shared link ...

BPDUs exchange information such as link costs and bridge priorities to determine which switch should become the root bridge, as well as to decide which ports to block to create the spanning tree and eliminate loops. ... RSTP Port States. RSTP does away with the Listening and Learning states and transitions immediately to Forwarding if ...