局域網(wǎng)內(nèi)幾臺機器，其中一臺 ping 外網(wǎng)延時達到 3000ms+ ,但是內(nèi)網(wǎng)延時正常，其他機器均正常。

進一步調(diào)試
ping 網(wǎng)關(guān)也是正常，網(wǎng)關(guān)嚇一跳延時就異常。其他機器都是正常

# uptime
 10:42:18 up 7 days, 23:16,  6 users,  load average: 1.74, 1.63, 1.58

# 內(nèi)存 cpu io 占用也是正常，網(wǎng)卡流量也很低

排除了內(nèi)部一些占用資源較高的運行著的程序，問題還是沒有找到

#mtr 114.114.114.114
問題機器

 Host                        Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 192.168.1.1               0.0%    20    0.3   0.4   0.3   1.2   0.0
 2. 112.16.81.254            31.6%    20  4777. 4744. 4493. 4927. 136.7
 3. 221.131.254.41           47.4%    20  4682. 4699. 4469. 4904. 151.2
 4. 117.148.181.13           88.9%    19  4683. 4799. 4683. 4915. 164.3
 5. 221.183.47.161           52.6%    19  4736. 4691. 4526. 4904. 112.8
 6. 221.183.42.61            63.2%    19  4757. 4674. 4455. 4887. 148.7
 7. 221.183.59.50            38.9%    19  4709. 4635. 4446. 4894. 133.8
 8. 26.22.207.183.static.js. 27.8%    19  4720. 4667. 4449. 4900. 156.5
 9. 221.181.240.218          61.5%    14  4712. 4630. 4508. 4712. 100.9
10. 112.25.2.30              46.2%    14  4658. 4591. 4478. 4693.  82.7
11. 112.25.2.230             46.2%    14  4681. 4606. 4510. 4681.  71.7
12. public1.114dns.com       58.3%    13  4728. 4621. 4473. 4751. 126.9

一臺正常機器

 Host                        Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 192.168.1.1               0.0%    20    0.3   0.3   0.3   0.5   0.0
 2. 112.16.81.254             0.0%    20   65.7  52.8   3.5 248.5  53.6
 3. 221.131.254.41            0.0%    20    4.9   5.1   4.2   7.6   0.7
 4. 117.148.181.13           47.4%    20    5.8   5.9   5.6   6.7   0.0
 5. 221.183.47.161            0.0%    20    5.9   6.7   4.9  21.5   3.5
 6. 221.183.42.61             0.0%    20   13.2  11.1   9.7  16.2   1.4
 7. 221.183.59.50             0.0%    20   10.2  11.1   9.9  15.0   1.1
 8. 26.22.207.183.static.js.  0.0%    19   13.9  14.9  13.4  23.5   2.2
 9. 221.181.240.218           0.0%    19   45.9  26.8  20.9  45.9   8.4
10. 112.25.2.30               0.0%    19   21.3  21.0  19.8  28.1   1.8
11. 112.25.2.230              0.0%    19   24.5  23.2  21.5  28.9   1.7
12. public1.114dns.com        0.0%    19   21.0  21.2  20.1  25.4   1.1