一学就懂 on MSN

如果STP被关闭，两个交换机形成环路会发生什么?

不到一天时间，两条重磅消息接连出现。 一直被说“稳得不能再稳”的春晚，突然动了。 不是换主持。 也不是堆明星。 而是从底层逻辑开始改。 这一连串动作，不像宣传，更像补课。 很多观众的第一反应，不是兴奋，而是松了一口气。 那种感觉，更像一句话 ...
Ars Technica

Locating the STP designated root?

OK maybe this is a question for the CCNA's or CCNP's out there. I have a catalyst 4507r out here running IOS v12.1(13) that is telling me a MAC address of a root ID for a given Vlan, let's call it ...
Network World

The Power of a (Spanning) Tree with Two Switches

Those who had an opinion last week were split evenly: CCNA labs need either 2 or 3 switches, and CCNP labs need either 3 or 4. But why? We saw a few opinions floating around the blog last week, but ...
Network World

802.1S solves architecture issues

802.1S Multiple Spanning Tree Protocol solves problems by supporting multiple spanning trees within a network. Network managers designing Layer 2 networks have long relied on IEEE 802.1D Spanning Tree ...