http://www.freebsdchina.org/forum/viewtopic.php?t=33607
1、数据包 “netstat 1″一秒钟累计一次，”netstat 2″两秒钟累计一次。依此类推
2、查看网卡流量：”systat -if 1″每秒钟刷新一次，”systat -if 2″两秒钟刷新一次，依此类推.
#ifstat
dc0
KB/s in KB/s out
3.57 1.40
3.94 1.69
3.27 0.85
3.41 0.79
3.25 0.55
3.31 0.56
3.59 1.64
FreeBSD-带宽占用-查看
[1] netstat 1 netstat -i netstat -I vr0 simple way
[2]ports: nload vivid way eg. view vr0--> nload vr0
[3]systat -if 1 nice way
[4]ports:ntop detailed information about bandwidth, esp for monitoring LAN info, but high system resource needed. view through website, eg. http://localhost:3000
[5]ports:mrtg Did not use it
[6]ports:bandwidthd Did not use it
[7]ports:iftop
对ntop印象不错，生成的报表信息比较全，局域网流量监控特别好
1、数据包 “netstat 1″一秒钟累计一次，”netstat 2″两秒钟累计一次。依此类推
2、查看网卡流量：”systat -if 1″每秒钟刷新一次，”systat -if 2″两秒钟刷新一次，依此类推.
#ifstat
dc0
KB/s in KB/s out
3.57 1.40
3.94 1.69
3.27 0.85
3.41 0.79
3.25 0.55
3.31 0.56
3.59 1.64
FreeBSD-带宽占用-查看
[1] netstat 1 netstat -i netstat -I vr0 simple way
[2]ports: nload vivid way eg. view vr0--> nload vr0
[3]systat -if 1 nice way
[4]ports:ntop detailed information about bandwidth, esp for monitoring LAN info, but high system resource needed. view through website, eg. http://localhost:3000
[5]ports:mrtg Did not use it
[6]ports:bandwidthd Did not use it
[7]ports:iftop
对ntop印象不错，生成的报表信息比较全，局域网流量监控特别好
