各位巨巨好，
我是热能系的硕士，潜水N年。现在李兆基大楼网络有很多问题，到网关和同网段ip丢包严重，平均60％。经常性出现ip冲突。因为负责网络的人非常不靠谱，只好找金枪鱼求助，恳请有时间的巨巨来指导一下。
李兆基大楼现在是机械学院很多系的系馆，包括热能系汽车系训练中心。目前环境是光纤到实验室，实验室自己配置交换机。不同系在不同vlan下面，热能系ip段101.6.62.1/24，汽车系166.111.144.1/24（不确定）。行政上，网络由华三提供的解决方案，出问题应该由大楼物业负责，然而物业的网管师傅水平很渣，只会检查网线和光纤通不通。华三的人也来过，但没有查出什么问题。现在的问题是到网关和同网段ip丢包严重（mtr结果在后面），热能系、汽车系不同实验室都存在相同的问题，应该能排除自己交换机的问题。不知道如果是可供使用的ip不够，是否会出现这个问题？
实验室老板让我看看怎么搞，我说另请高明吧，我实在也不是谦虚。老板说系里决定了，由你负责解决。我当时并没有念诗，所以只好求助网管会的各位巨巨。需要巨巨们到现场看一下环境，排查一下问题。如果需要的话，我会和老板争取一下报酬，通过勤工助学的方式给巨巨一些补贴。
如果哪位巨巨有时间有兴趣，请联系我：15210582389，微信：yang_hai_yu，email:
[email protected] / [email protected]
一些结果：
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PING baidu.com (111.13.101.208) 56(84) bytes of data.
64 bytes from 111.13.101.208: icmp_seq=1 ttl=43 time=53.1 ms
64 bytes from 111.13.101.208: icmp_seq=2 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=3 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=4 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=5 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=6 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=7 ttl=43 time=53.5 ms
64 bytes from 111.13.101.208: icmp_seq=8 ttl=43 time=53.2 ms
64 bytes from 111.13.101.208: icmp_seq=9 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=10 ttl=43 time=53.3 ms
64 bytes from 111.13.101.208: icmp_seq=11 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=12 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=13 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=14 ttl=43 time=53.2 ms
64 bytes from 111.13.101.208: icmp_seq=15 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=16 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=17 ttl=43 time=53.9 ms
64 bytes from 111.13.101.208: icmp_seq=18 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=19 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=20 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=22 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=23 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=24 ttl=43 time=53.3 ms
64 bytes from 111.13.101.208: icmp_seq=25 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=26 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=27 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=28 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=29 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=30 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=31 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=32 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=33 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=34 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=35 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=36 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=37 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=38 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=39 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=81 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=82 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=83 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=84 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=85 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=86 ttl=43 time=53.2 ms
64 bytes from 111.13.101.208: icmp_seq=87 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=88 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=89 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=90 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=91 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=132 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=133 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=134 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=136 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=137 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=138 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=179 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=180 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=181 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=182 ttl=43 time=53.1 ms
64 bytes from 111.13.101.208: icmp_seq=183 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=184 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=225 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=226 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=227 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=228 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=229 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=285 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=286 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=287 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=288 ttl=43 time=53.0 ms
64 bytes from 111.13.101.208: icmp_seq=289 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=290 ttl=43 time=52.8 ms
64 bytes from 111.13.101.208: icmp_seq=339 ttl=43 time=52.7 ms
64 bytes from 111.13.101.208: icmp_seq=340 ttl=43 time=52.9 ms
64 bytes from 111.13.101.208: icmp_seq=341 ttl=43 time=52.8 ms
PING 101.6.62.1 (101.6.62.1) 56(84) bytes of data.
64 bytes from 101.6.62.1: icmp_seq=1 ttl=255 time=1.81 ms
64 bytes from 101.6.62.1: icmp_seq=2 ttl=255 time=1.48 ms
64 bytes from 101.6.62.1: icmp_seq=3 ttl=255 time=1.61 ms
64 bytes from 101.6.62.1: icmp_seq=4 ttl=255 time=9.27 ms
64 bytes from 101.6.62.1: icmp_seq=5 ttl=255 time=7.12 ms
64 bytes from 101.6.62.1: icmp_seq=6 ttl=255 time=1.49 ms
64 bytes from 101.6.62.1: icmp_seq=7 ttl=255 time=10.8 ms
64 bytes from 101.6.62.1: icmp_seq=8 ttl=255 time=3.67 ms
64 bytes from 101.6.62.1: icmp_seq=9 ttl=255 time=2.33 ms
64 bytes from 101.6.62.1: icmp_seq=10 ttl=255 time=7.21 ms
64 bytes from 101.6.62.1: icmp_seq=57 ttl=255 time=1.62 ms
64 bytes from 101.6.62.1: icmp_seq=58 ttl=255 time=1.40 ms
64 bytes from 101.6.62.1: icmp_seq=59 ttl=255 time=1.34 ms
64 bytes from 101.6.62.1: icmp_seq=60 ttl=255 time=1.30 ms
64 bytes from 101.6.62.1: icmp_seq=61 ttl=255 time=10.0 ms
64 bytes from 101.6.62.1: icmp_seq=62 ttl=255 time=1.51 ms
64 bytes from 101.6.62.1: icmp_seq=63 ttl=255 time=1.54 ms
64 bytes from 101.6.62.1: icmp_seq=64 ttl=255 time=1.40 ms
64 bytes from 101.6.62.1: icmp_seq=65 ttl=255 time=2.52 ms
64 bytes from 101.6.62.1: icmp_seq=66 ttl=255 time=1.27 ms
64 bytes from 101.6.62.1: icmp_seq=67 ttl=255 time=1.33 ms
64 bytes from 101.6.62.1: icmp_seq=68 ttl=255 time=1.34 ms
64 bytes from 101.6.62.1: icmp_seq=69 ttl=255 time=9.71 ms
64 bytes from 101.6.62.1: icmp_seq=70 ttl=255 time=1.30 ms
64 bytes from 101.6.62.1: icmp_seq=71 ttl=255 time=12.7 ms
64 bytes from 101.6.62.1: icmp_seq=72 ttl=255 time=4.95 ms
64 bytes from 101.6.62.1: icmp_seq=73 ttl=255 time=13.8 ms
64 bytes from 101.6.62.1: icmp_seq=74 ttl=255 time=1.52 ms
64 bytes from 101.6.62.1: icmp_seq=75 ttl=255 time=2.12 ms
64 bytes from 101.6.62.1: icmp_seq=76 ttl=255 time=1.42 ms
64 bytes from 101.6.62.1: icmp_seq=77 ttl=255 time=1.47 ms
64 bytes from 101.6.62.1: icmp_seq=78 ttl=255 time=5.53 ms
64 bytes from 101.6.62.1: icmp_seq=79 ttl=255 time=1.13 ms
64 bytes from 101.6.62.1: icmp_seq=80 ttl=255 time=1.51 ms
64 bytes from 101.6.62.1: icmp_seq=81 ttl=255 time=1.28 ms
64 bytes from 101.6.62.1: icmp_seq=82 ttl=255 time=1.63 ms
64 bytes from 101.6.62.1: icmp_seq=83 ttl=255 time=1.40 ms
64 bytes from 101.6.62.1: icmp_seq=84 ttl=255 time=1.27 ms
64 bytes from 101.6.62.1: icmp_seq=85 ttl=255 time=1.44 ms
64 bytes from 101.6.62.1: icmp_seq=86 ttl=255 time=1.32 ms
64 bytes from 101.6.62.1: icmp_seq=87 ttl=255 time=1.39 ms
64 bytes from 101.6.62.1: icmp_seq=88 ttl=255 time=1.33 ms
64 bytes from 101.6.62.1: icmp_seq=89 ttl=255 time=17.0 ms
64 bytes from 101.6.62.1: icmp_seq=90 ttl=255 time=1.26 ms
64 bytes from 101.6.62.1: icmp_seq=91 ttl=255 time=1.33 ms
64 bytes from 101.6.62.1: icmp_seq=92 ttl=255 time=10.1 ms
64 bytes from 101.6.62.1: icmp_seq=93 ttl=255 time=3.87 ms
64 bytes from 101.6.62.1: icmp_seq=94 ttl=255 time=7.38 ms
64 bytes from 101.6.62.1: icmp_seq=95 ttl=255 time=4.61 ms
64 bytes from 101.6.62.1: icmp_seq=96 ttl=255 time=1.49 ms
64 bytes from 101.6.62.1: icmp_seq=97 ttl=255 time=1.43 ms
64 bytes from 101.6.62.1: icmp_seq=139 ttl=255 time=1.36 ms
64 bytes from 101.6.62.1: icmp_seq=140 ttl=255 time=1.63 ms
64 bytes from 101.6.62.1: icmp_seq=141 ttl=255 time=1.50 ms
64 bytes from 101.6.62.1: icmp_seq=142 ttl=255 time=1.56 ms
64 bytes from 101.6.62.1: icmp_seq=143 ttl=255 time=1.41 ms
64 bytes from 101.6.62.1: icmp_seq=144 ttl=255 time=1.38 ms
64 bytes from 101.6.62.1: icmp_seq=145 ttl=255 time=2.72 ms
64 bytes from 101.6.62.1: icmp_seq=146 ttl=255 time=1.33 ms
64 bytes from 101.6.62.1: icmp_seq=147 ttl=255 time=1.57 ms
64 bytes from 101.6.62.1: icmp_seq=148 ttl=255 time=1.35 ms
64 bytes from 101.6.62.1: icmp_seq=149 ttl=255 time=5.32 ms
64 bytes from 101.6.62.1: icmp_seq=191 ttl=255 time=9.25 ms
64 bytes from 101.6.62.1: icmp_seq=192 ttl=255 time=41.3 ms
64 bytes from 101.6.62.1: icmp_seq=193 ttl=255 time=1.91 ms
64 bytes from 101.6.62.1: icmp_seq=194 ttl=255 time=1.56 ms
64 bytes from 101.6.62.1: icmp_seq=195 ttl=255 time=1.53 ms
64 bytes from 101.6.62.1: icmp_seq=196 ttl=255 time=1.77 ms
64 bytes from 101.6.62.1: icmp_seq=238 ttl=255 time=1.35 ms
64 bytes from 101.6.62.1: icmp_seq=239 ttl=255 time=1.49 ms
64 bytes from 101.6.62.1: icmp_seq=240 ttl=255 time=2.95 ms
64 bytes from 101.6.62.1: icmp_seq=241 ttl=255 time=1.38 ms
64 bytes from 101.6.62.1: icmp_seq=242 ttl=255 time=1.26 ms
64 bytes from 101.6.62.1: icmp_seq=283 ttl=255 time=1.57 ms
64 bytes from 101.6.62.1: icmp_seq=284 ttl=255 time=1.21 ms
64 bytes from 101.6.62.1: icmp_seq=285 ttl=255 time=3.80 ms
64 bytes from 101.6.62.1: icmp_seq=286 ttl=255 time=1.54 ms
64 bytes from 101.6.62.1: icmp_seq=287 ttl=255 time=1.48 ms
64 bytes from 101.6.62.1: icmp_seq=344 ttl=255 time=1.74 ms
64 bytes from 101.6.62.1: icmp_seq=345 ttl=255 time=1.31 ms
64 bytes from 101.6.62.1: icmp_seq=346 ttl=255 time=34.1 ms
64 bytes from 101.6.62.1: icmp_seq=347 ttl=255 time=1.33 ms
64 bytes from 101.6.62.1: icmp_seq=348 ttl=255 time=1.40 ms
64 bytes from 101.6.62.1: icmp_seq=397 ttl=255 time=4.25 ms
64 bytes from 101.6.62.1: icmp_seq=398 ttl=255 time=1.39 ms
64 bytes from 101.6.62.1: icmp_seq=399 ttl=255 time=1.41 ms
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP
group default qlen 1000
link/ether 28:d2:44:1a:bc:32 brd ff:ff:ff:ff:ff:ff
inet 101.6.62.206/24 brd 101.6.62.255 scope global dynamic enp0s25
valid_lft 3571sec preferred_lft 3571sec
inet6 fe80::2ad2:44ff:fe1a:bc32/64 scope link
valid_lft forever preferred_lft forever
3: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
group default qlen 1000
link/ether 5c:51:4f:17:53:8b brd ff:ff:ff:ff:ff:ff
My traceroute [v0.85]
irtp (0.0.0.0) Tue Apr 19 13:55:22 2016
Resolver: Received error response 2. (server failure)er of fields quit
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. ???
2. 118.229.9.49 89.7% 127 0.4 0.5 0.3 1.6 0.3
3. 118.229.2.97 89.7% 127 0.6 0.7 0.4 2.1 0.3
4. 118.229.2.65 89.7% 127 0.7 0.9 0.6 3.5 0.6
5. 118.229.4.98 89.7% 127 0.7 0.7 0.6 0.7 0.0
6. 118.229.4.33 89.7% 127 0.7 1.7 0.6 14.2 3.7
7. 118.229.4.65 88.9% 127 0.8 0.9 0.7 3.0 0.4
8. 202.112.38.9 88.9% 127 1.5 2.1 1.4 6.0 1.1
9. 101.4.118.77 88.9% 127 0.8 1.4 0.7 7.9 1.8
10. 101.4.112.70 88.9% 127 29.8 29.7 27.0 33.6 1.8
11. 101.4.116.117 88.9% 127 27.2 29.7 27.2 32.6 1.6
12. ???
13. 101.4.114.202 88.9% 127 28.7 29.8 27.6 32.0 1.1
14. 202.127.216.202 88.9% 127 30.1 30.5 28.7 31.8 0.8
15. 221.176.23.97 90.4% 126 27.8 29.1 27.7 42.9 4.3
16. 221.176.22.17 89.6% 126 28.9 31.1 28.5 59.9 8.7
17. 221.176.21.81 89.6% 126 53.7 53.8 53.6 54.3 0.0
18. 221.183.18.130 91.2% 126 53.8 53.8 53.7 54.0 0.0
19. 111.13.98.249 96.8% 126 53.5 53.3 53.1 53.5 0.0
traceroute to baidu.com (111.13.101.208), 30 hops max, 60 byte packets
1 * * *
2 118.229.9.49 (118.229.9.49) 0.400 ms 0.403 ms 0.373 ms
3 118.229.2.97 (118.229.2.97) 0.358 ms 0.345 ms 0.334 ms
4 118.229.2.65 (118.229.2.65) 0.322 ms 0.311 ms 0.301 ms
5 118.229.4.98 (118.229.4.98) 0.486 ms 0.488 ms 0.469 ms
6 118.229.4.33 (118.229.4.33) 0.446 ms 0.407 ms 0.396 ms
7 118.229.4.65 (118.229.4.65) 1.499 ms 1.506 ms 1.500 ms
8 202.112.38.9 (202.112.38.9) 1.829 ms 1.824 ms 1.812 ms
9 101.4.118.77 (101.4.118.77) 0.689 ms 101.4.116.193 (101.4.116.193) 0.604
ms 0.632 ms
10 101.4.112.70 (101.4.112.70) 33.677 ms 33.679 ms 33.653 ms
11 101.4.116.117 (101.4.116.117) 31.026 ms 30.643 ms 30.611 ms
12 101.4.117.29 (101.4.117.29) 26.817 ms 26.810 ms 26.799 ms
13 101.4.115.177 (101.4.115.177) 28.148 ms 101.4.112.78 (101.4.112.78)
31.565 ms 101.4.115.177 (101.4.115.177) 31.516 ms
14 202.127.216.202 (202.127.216.202) 28.769 ms 28.490 ms 28.463 ms
15 221.176.23.97 (221.176.23.97) 27.620 ms 27.693 ms 27.645 ms
16 221.176.22.17 (221.176.22.17) 43.562 ms 28.483 ms 28.357 ms
17 * * *
18 221.183.18.134 (221.183.18.134) 52.232 ms 52.538 ms 221.183.18.130
(221.183.18.130) 53.452 ms
19 111.13.98.253 (111.13.98.253) 52.137 ms 111.13.98.249 (111.13.98.249)
52.022 ms 52.060 ms
20 111.13.108.26 (111.13.108.26) 52.674 ms * 111.13.108.1 (111.13.108.1)
75.987 ms
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
