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Ubuntu 20.04 LTS MTR _gateway 报告近 100% 的数据包丢失，客户端出现卡顿和延迟

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Ubuntu 20.04 LTS MTR _gateway 报告近 100% 的数据包丢失，客户端出现卡顿和延迟

最近，我的专用服务器出现了一些问题。我自己做了尽可能多的调试，通过使用脚本运行tracerts 和pings。观察服务器的吞吐量，它适合其使用，大约 20mb/s 输入/输出。问题是，有时服务器似乎对外部网络没有响应，但它本身保持在线和功能连接。这导致我的所有客户端与我托管的各种服务断开连接约 2 分钟，有时更长。这似乎是数据包大量丢失，但我不确定路由中的哪个地方可能不正确。附件是一些诊断信息

港铁

 Host                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. _gateway                         30.4%    24  7889. 1220.   1.7 7889. 2323.
 2. core-access-switch1-v4001.jnb1.h  4.2%    24    0.8   2.3   0.8   7.6   2.1
 3. (waiting for reply)
 4. google-2.jinx.net.za              0.0%    24    9.4  18.3   7.2  29.4   5.8
 5. 172.253.65.181                    0.0%    23   24.2  21.9   9.5  37.8   6.7
 6. 172.253.66.3                      0.0%    23   21.8  19.4   3.0  30.7   6.7
 7. dns.google                        0.0%    23   12.2  16.8   7.7  29.7   5.3

                                       Packets               Pings
 Host                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. x.x.x.x                          77.8%    10   31.6  38.5  31.6  45.4   9.8
 2. core-access-switch1-v4001.jnb1.h 55.6%    10   31.4  36.7  31.4  44.2   6.2
 3. (waiting for reply)
 4. google-2.jinx.net.za             70.0%    10   33.8  33.8  33.8  33.9   0.0
 5. 172.253.65.181                   75.0%     9   33.0  32.7  32.4  33.0   0.4
 6. 172.253.66.3                     62.5%     9   33.2  33.2  33.0  33.4   0.2
 7. 8.8.8.8                          66.7%     9   32.4  32.2  32.1  32.4   0.1

ip 路由显示

default via 156.38.x.x dev eno1 onlink
156.38.x.x/xdev eno1 proto kernel scope link src 156.38.x.x

ip -s 链接

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    RX: bytes  packets  errors  dropped overrun mcast
    8177784    82154    0       0       0       0
    TX: bytes  packets  errors  dropped carrier collsns
    8177784    82154    0       0       0       0
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether ac:1f:6b:00:5c:94 brd ff:ff:ff:ff:ff:ff
    RX: bytes  packets  errors  dropped overrun mcast
    765764160485 2555872035 0       0       0       43888
    TX: bytes  packets  errors  dropped carrier collsns
    674858531647 1733340153 0       0       0       0
3: eno2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether ac:1f:6b:00:5c:95 brd ff:ff:ff:ff:ff:ff
    RX: bytes  packets  errors  dropped overrun mcast
    0          0        0       0       0       0
    TX: bytes  packets  errors  dropped carrier collsns
    0          0        0       0       0       0

网络状态-rN

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         156.38.x.x      0.0.0.0         UG        0 0          0 eno1
156.38.x.x      0.0.0.0         255.255.255.248 U         0 0          0 eno1

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