From 2b6df32d105ba74ea0ee712e25d7fc6e167f6c58 Mon Sep 17 00:00:00 2001 From: Peng Hailin Date: Wed, 22 Feb 2017 09:33:38 +0800 Subject: [PATCH] Daily update. 2017-02-22 09:33:38 --- mindmaps/RSTP-快速生成树协议.mm | 86 +++++++++++++++++++ .../STP,Spanning Tree Protocol,生成树协议.mm | 15 ---- 2 files changed, 86 insertions(+), 15 deletions(-) create mode 100644 mindmaps/RSTP-快速生成树协议.mm diff --git a/mindmaps/RSTP-快速生成树协议.mm b/mindmaps/RSTP-快速生成树协议.mm new file mode 100644 index 0000000..827a0e3 --- /dev/null +++ b/mindmaps/RSTP-快速生成树协议.mm @@ -0,0 +1,86 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

+ 快速生成树协议（Rapid Spanning Tree Protocol, RSTP）, 显著地缩短了在某条链路失效时，STP用于收敛的时间。在RSTP下，网络从故障切换到一条替代路径或链路可在亚秒级别完成（with RSTP, network failover to an alternate path or link can occur in a subsecond timeframe）。RSTP是802.1D的一个扩展，执行与上行快速及骨干快速类似的功能。RSTP比传统的STP执行得更好，且无需额外配置。此外，RSTP向后兼容最初的IEEE 802.1D STP标准。其通过使用一种如下面的截屏中所示的修改的BPDU，实现的向后兼容。 +

+ + + + + + + + + + + + + +

+ 802.1Ｗ，是802.1Ｄ的一个扩展。 +

+ + + + + + + diff --git a/mindmaps/STP,Spanning Tree Protocol,生成树协议.mm b/mindmaps/STP,Spanning Tree Protocol,生成树协议.mm index 97c488b..e144d3f 100644 --- a/mindmaps/STP,Spanning Tree Protocol,生成树协议.mm +++ b/mindmaps/STP,Spanning Tree Protocol,生成树协议.mm @@ -554,21 +554,6 @@ - - - - - - - -

- The backup port applies only when a single switch has two links to the same segment (collision domain). To have two links to the same collision domain, the switch must be attached to a hub. -

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