本文主要是介绍alternate port和backup port的区别,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
alternate port 是根端口的替换端口;
backup port 是指定端口的备份端口。
看看思科的解释:
(D:指定端口,R:根端口,A:替换端口,B:备份端口)An alternate port receives more useful BPDUs from another bridge and is a port blocked.
A backup port receives more useful BPDUs from the same bridge it is on and is a port blocked.
大概意思是alternate port接收来自另外一个桥的BPDU报文,backup port接收来自同一桥的BPDU报文。
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