cdpr命令：
安装：yum -y install cdpr （安装epel库）
[21:53:07 root@localhost ~]# cdpr -h cdpr - Cisco Discovery Protocol Reporter Version 2.4 Copyright (c) 2002-2010 - MonkeyMental.com d: Specify device to use (eth0, hme0, etc.) h: Print this usage t: time in seconds to abort waiting for a packet (should be > 60) v[vv]: Set verbose mode r: read from file instead of network device ** Options dealing with server updates: ** u: Send cdpr information to a cdpr server requires config file as arg l: Location/description of this port for use with -u or -s and -p n: Override the hostname reported to the server for use with -u or -s and -p s: Server to send information to specify port with a : after Server/IP Example: 192.168.1.20:88 (default: 80) requires -p (overridden by -u) p: Path of server script to send data to requires -s (overridden by -u)
linux服务器查看网卡连接的交换机IP和PORT,布布扣,bubuko.com
原文：http://1499681.blog.51cto.com/1489681/1413903