这是一个创建于 94 天前的主题，其中的信息可能已经有所发展或是发生改变。
我的 2 个地址（简称 A 和 B ）都是同城电信千兆宽带（百兆上传），之前发现 A 地址的上传被限速到 10M （上传 1MB/s ） 然后打 10000 后和 it 后台人员理论后，先说找不到问题，然后我发了 A 和 B 宽带互测的 iperf 的截图和理论当前电信官网的测试白名单机制后，过了一周多，直接收到工单完成的短信。
于是我用之前被限速的测速网站后，发现上传是恢复了……（吗？）
在 B 宽带处用 iperf 通过 tailscale 测试连接的速度后。发现 A 宽带还是被限速到 10M 。
然后我用iperf 通过公网 ip 来测（要开高位端口才行，默认端口连不通），发现 tcp 的限速有时候被取消了。但是 udp 的还是一直被限速。 之所以说有时候，是因为测了一会，就可能会触发限速
通过公网直接从 B 宽带的测试结果（反向模式，A 传输给 B ，测试 A 的上传）：
> iperf3.exe -c {public ip} -p 25021 -u -b 100M [ 4] local {lan ip} port 53674 connected to {public ip} port 25021 [ ID] Interval Transfer Bandwidth Total Datagrams [ 4] 0.00-1.01 sec 10.9 MBytes 90.2 Mbits/sec 1395 [ 4] 1.01-2.00 sec 12.0 MBytes 102 Mbits/sec 1535 [ 4] 2.00-3.01 sec 12.0 MBytes 100 Mbits/sec 1534 [ 4] 3.01-4.01 sec 11.7 MBytes 98.3 Mbits/sec 1503 [ 4] 4.01-5.01 sec 11.9 MBytes 99.9 Mbits/sec 1527 [ 4] 5.01-6.00 sec 12.0 MBytes 102 Mbits/sec 1538 [ 4] 6.00-7.00 sec 11.9 MBytes 100 Mbits/sec 1529 [ 4] 7.00-8.00 sec 11.9 MBytes 100 Mbits/sec 1529 [ 4] 8.00-9.01 sec 11.8 MBytes 98.4 Mbits/sec 1506 [ 4] 9.01-10.01 sec 11.9 MBytes 99.7 Mbits/sec 1527 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-10.01 sec 118 MBytes 99.0 Mbits/sec 0.362 ms 6548/15101 (43%) [ 4] Sent 15101 datagrams > iperf3.exe -c {public ip} -p 25021 -u -b 100M -R Connecting to host {public ip}, port 25021 Reverse mode, remote host 218.78.176.224 is sending [ 4] local {lan ip} port 49192 connected to {public ip} port 25021 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-1.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 1.01-2.00 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 2.00-3.02 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 3.02-4.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 4.01-5.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 5.01-6.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 6.01-7.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 7.01-8.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 8.01-9.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) [ 4] 9.01-10.01 sec 0.00 Bytes 0.00 bits/sec 0.000 ms 0/0 (0%) - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-10.01 sec 120 MBytes 100 Mbits/sec 0.000 ms 0/0 (0%) [ 4] Sent 0 datagrams 测了几次以后，在继续通过公网测试就会这样：
Reverse mode, remote host {public ip} is sending [ 4] local {lan ip} port 5913 connected to {public ip} port 25021 [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 1.67 MBytes 14.0 Mbits/sec [ 4] 1.00-2.01 sec 589 KBytes 4.82 Mbits/sec [ 4] 2.01-3.02 sec 588 KBytes 4.77 Mbits/sec [ 4] 3.02-4.00 sec 595 KBytes 4.95 Mbits/sec [ 4] 4.00-5.00 sec 592 KBytes 4.84 Mbits/sec [ 4] 5.00-6.01 sec 581 KBytes 4.74 Mbits/sec [ 4] 6.01-7.00 sec 608 KBytes 5.01 Mbits/sec [ 4] 7.00-8.00 sec 591 KBytes 4.82 Mbits/sec [ 4] 8.00-9.00 sec 593 KBytes 4.87 Mbits/sec [ 4] 9.00-10.00 sec 586 KBytes 4.81 Mbits/sec [ 4] 10.00-11.00 sec 603 KBytes 4.94 Mbits/sec [ 4] 11.00-12.00 sec 592 KBytes 4.85 Mbits/sec [ 4] 12.00-13.00 sec 592 KBytes 4.85 Mbits/sec [ 4] 13.00-14.00 sec 593 KBytes 4.85 Mbits/sec [ 4] 14.00-15.00 sec 592 KBytes 4.85 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-15.00 sec 10.2 MBytes 5.73 Mbits/sec 823 sender [ 4] 0.00-15.00 sec 9.90 MBytes 5.53 Mbits/sec receiver Server output: ----------------------------------------------------------- Server listening on 25021 (test #3) ----------------------------------------------------------- Accepted connection from {public ip}, port 5912 [ 5] local 172.16.1.2 port 25021 connected to 58.35.163.121 port 5913 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 2.12 MBytes 17.8 Mbits/sec 450 7.03 KBytes [ 5] 1.00-2.00 sec 512 KBytes 4.19 Mbits/sec 19 7.03 KBytes [ 5] 2.00-3.00 sec 512 KBytes 4.20 Mbits/sec 22 8.44 KBytes [ 5] 3.00-4.00 sec 640 KBytes 5.24 Mbits/sec 28 7.03 KBytes [ 5] 4.00-5.00 sec 640 KBytes 5.25 Mbits/sec 19 7.03 KBytes [ 5] 5.00-6.00 sec 640 KBytes 5.24 Mbits/sec 23 7.03 KBytes [ 5] 6.00-7.00 sec 512 KBytes 4.19 Mbits/sec 34 5.62 KBytes [ 5] 7.00-8.00 sec 512 KBytes 4.19 Mbits/sec 24 7.03 KBytes [ 5] 8.00-9.00 sec 768 KBytes 6.30 Mbits/sec 27 8.44 KBytes [ 5] 9.00-10.00 sec 512 KBytes 4.19 Mbits/sec 37 7.03 KBytes [ 5] 10.00-11.00 sec 512 KBytes 4.19 Mbits/sec 28 5.62 KBytes [ 5] 11.00-12.00 sec 640 KBytes 5.25 Mbits/sec 30 7.03 KBytes [ 5] 12.00-13.00 sec 768 KBytes 6.29 Mbits/sec 23 8.44 KBytes [ 5] 13.00-14.00 sec 512 KBytes 4.19 Mbits/sec 24 7.03 KBytes [ 5] 14.00-15.00 sec 512 KBytes 4.19 Mbits/sec 35 7.03 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-15.01 sec 10.1 MBytes 5.66 Mbits/sec 823 sender 如果是在 B 宽带处通过 tailscale 测试就一直这样,限速 10M： UDP
iperf3.exe -c 172.16.1.2 -R -u -b 100M -t 15 --get-server-output Connecting to host 172.16.1.2, port 5201 Reverse mode, remote host 172.16.1.2 is sending [ 4] local 100.88.112.34 port 59706 connected to 172.16.1.2 port 5201 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-1.00 sec 1.89 MBytes 15.8 Mbits/sec 19284.648 ms 0/242 (0%) [ 4] 1.00-2.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 2.01-3.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 3.01-4.00 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 4.00-5.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 5.01-6.00 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 6.00-7.00 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 7.00-8.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 8.01-9.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 9.01-10.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 10.01-11.00 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 11.00-12.01 sec 0.00 Bytes 0.00 bits/sec 19284.648 ms 0/0 (0%) [ 4] 12.01-13.00 sec 32.0 KBytes 264 Kbits/sec 14913.186 ms 18911/18915 (1e+02%) [ 4] 13.00-14.01 sec 1.15 MBytes 9.57 Mbits/sec 7.996 ms 1270/1417 (90%) [ 4] 14.01-15.01 sec 1.30 MBytes 10.9 Mbits/sec 4.413 ms 762/929 (82%) - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-15.01 sec 179 MBytes 100 Mbits/sec 2.946 ms 22171/22927 (97%) [ 4] Sent 22927 datagrams Server output: ----------------------------------------------------------- Server listening on 5201 (test #2) ----------------------------------------------------------- Accepted connection from 172.16.2.1, port 5903 [ 5] local 172.16.1.2 port 5201 connected to 172.16.2.1 port 59706 [ ID] Interval Transfer Bitrate Total Datagrams [ 5] 0.00-1.00 sec 11.9 MBytes 99.9 Mbits/sec 1529 [ 5] 1.00-2.00 sec 11.9 MBytes 100 Mbits/sec 1527 [ 5] 2.00-3.00 sec 11.9 MBytes 100 Mbits/sec 1526 [ 5] 3.00-4.00 sec 11.9 MBytes 99.9 Mbits/sec 1524 [ 5] 4.00-5.00 sec 11.9 MBytes 100 Mbits/sec 1525 [ 5] 5.00-6.00 sec 11.9 MBytes 99.9 Mbits/sec 1525 [ 5] 6.00-7.00 sec 11.9 MBytes 100 Mbits/sec 1528 [ 5] 7.00-8.00 sec 11.9 MBytes 99.9 Mbits/sec 1526 [ 5] 8.00-9.00 sec 11.9 MBytes 100 Mbits/sec 1526 [ 5] 9.00-10.00 sec 11.9 MBytes 100 Mbits/sec 1525 [ 5] 10.00-11.00 sec 11.9 MBytes 100 Mbits/sec 1525 [ 5] 11.00-12.00 sec 11.9 MBytes 99.9 Mbits/sec 1527 [ 5] 12.00-13.00 sec 11.9 MBytes 100 Mbits/sec 1525 [ 5] 13.00-14.00 sec 11.9 MBytes 99.9 Mbits/sec 1525 [ 5] 14.00-15.00 sec 11.9 MBytes 99.9 Mbits/sec 1526 [ 5] 15.00-15.03 sec 336 KBytes 105 Mbits/sec 41 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams [ 5] 0.00-15.03 sec 179 MBytes 100 Mbits/sec 0.000 ms 0/22930 (0%) sender TCP
iperf3.exe -c 172.16.1.2 -R -P 4 -b 100M -t 15 --get-server-output Connecting to host 172.16.1.2, port 5201 Reverse mode, remote host 172.16.1.2 is sending [ 4] local 100.88.112.34 port 6007 connected to 172.16.1.2 port 5201 [ 6] local 100.88.112.34 port 6008 connected to 172.16.1.2 port 5201 [ 8] local 100.88.112.34 port 6009 connected to 172.16.1.2 port 5201 [ 10] local 100.88.112.34 port 6010 connected to 172.16.1.2 port 5201 [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 597 KBytes 4.88 Mbits/sec [ 6] 0.00-1.00 sec 550 KBytes 4.49 Mbits/sec ... [SUM] 14.00-15.00 sec 1006 KBytes 8.23 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-15.00 sec 3.88 MBytes 2.17 Mbits/sec 258 sender [ 4] 0.00-15.00 sec 3.88 MBytes 2.17 Mbits/sec receiver [ 6] 0.00-15.00 sec 4.50 MBytes 2.52 Mbits/sec 303 sender [ 6] 0.00-15.00 sec 4.42 MBytes 2.47 Mbits/sec receiver [ 8] 0.00-15.00 sec 5.00 MBytes 2.80 Mbits/sec 347 sender [ 8] 0.00-15.00 sec 4.96 MBytes 2.77 Mbits/sec receiver [ 10] 0.00-15.00 sec 3.00 MBytes 1.68 Mbits/sec 230 sender [ 10] 0.00-15.00 sec 2.97 MBytes 1.66 Mbits/sec receiver [SUM] 0.00-15.00 sec 16.4 MBytes 9.16 Mbits/sec 1138 sender [SUM] 0.00-15.00 sec 16.2 MBytes 9.07 Mbits/sec receiver Server output: ----------------------------------------------------------- Server listening on 5201 (test #3) ----------------------------------------------------------- Accepted connection from 172.16.2.1, port 6006 [ 5] local 172.16.1.2 port 5201 connected to 172.16.2.1 port 6007 [ 8] local 172.16.1.2 port 5201 connected to 172.16.2.1 port 6008 [ 10] local 172.16.1.2 port 5201 connected to 172.16.2.1 port 6009 [ 12] local 172.16.1.2 port 5201 connected to 172.16.2.1 port 6010 ... [SUM] 14.00-15.00 sec 1.12 MBytes 9.45 Mbits/sec 89 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-15.01 sec 3.75 MBytes 2.10 Mbits/sec 258 sender [ 8] 0.00-15.01 sec 4.38 MBytes 2.44 Mbits/sec 303 sender [ 10] 0.00-15.01 sec 5.00 MBytes 2.79 Mbits/sec 347 sender [ 12] 0.00-15.01 sec 3.00 MBytes 1.68 Mbits/sec 230 sender [SUM] 0.00-15.01 sec 16.1 MBytes 9.01 Mbits/sec 1138 sender 应该是 tailscale 的隧道是走的 UDP ，所以不管什么流量都会被封装在 tailscale 的 UDP 里。 另外好奇为什么公网直接 UDP 传输速度全部是 0 ？
29 条回复 2025-10-25 16:33:58 +08:00
 | 1 renchong 94 天前 我是成都电信，之前限速过 具体表现就是，ip 段被拉入一个特殊的网段，无论怎么重新拨号都无法跳出这个网段 然后上传下载速度极度不稳定，延迟巨高，ping 成都本地 dns 延迟都会超过 100ms ，这样也就没法打任何网络游戏，延迟基本都在 100 多 |
 | 2 sir283 94 天前 继续投诉啊，电信就是要投诉才行，我当时在深圳城中村，就电信卡一直没信号，投诉过去当天，就好了半小时，半小时后，又变差了，然后过了一会，收到短信，说什么我这边电信信号没问题，就给我完成工单闭环了，靠，后来我一直叼它们，给他们客服打电话，结果一直不给我搞，后来应该是知道我要搬走了，才跟我说，已经处理好了，特别恶心人。 |
 | 4 zyt5876 94 天前 我 UDP 和 HTTTPS 都被限速了，http 正常。 |
 | 5 mayli 94 天前 via Android Udp qos 是国内常规操作了 |
 | 6 mofash 94 天前 孤陋寡闻，国内运营商 qos udp 都十多年了 |
 | 11 P945 94 天前 via iPhone |
 | 12 isnullstring 94 天前 UDP 本来就被歧视，所以才会说 http3 在国内走不通 |
 | 13 SenLief 94 天前 via iPhone udp 国内一直不太行，经常限速的。 |
 | 14 slowman 94 天前 这个帖子给楼主 61 分 楼主击败了 90%的弱智用户,他们张口闭口 udp 啊 qos 啊, 连 iperf3 怎么用都不会 可惜楼主也不太会,人至少应该自己学会怎么在公网测 udp 吧? “宽带症候群”是给懂网络的人用的,结果全都是一群网络不及格用户 |
 | 15 hallieastem 94 天前 iperf3 -c x.x.x.x -p xxxx -u -b 100K -t 600 iperf3 -c x.x.x.x -p xxxx -u -b 100M -t 600 跑了看看结果 |
 | 16 cnbatch 94 天前  1 OP 测速有点“狂暴” 怎么说呢，UDP 一上来就 100M ，明显不妥，须知道 UDP 测速是没有拥塞控制的，流量远超签约带宽被中间节点一刀切地丢包都不奇怪 正确做法是从小流量往大流量逐个试，比如试 5 次，100K 、1M 、3M 、10M 、20M 慢慢来，这样才可以试出真实的速度，同时看得出网络通畅情况 |
| 18 slowman 93 天前 1 @w568w 上面 cnbatch 提过的一点是对的,起步速率应该是两端最小签约带宽,一般建议从 10Mbits/s 开始,要在接收端看丢包率,发送端一般没有瓶颈,不需要发日志出来 从楼主 tailscale 测速看,udp 似乎是被限速在 10Mbits/s 了, 应该测试公网下 -b 5m -b 10m -b 20m, 你跑 100m 防火墙干你就对了 楼主说 “另外好奇为什么公网直接 UDP 传输速度全部是 0” 这显然是要自己解决的,可能原因有 1. MTU 问题, 测 udp 应该 -l 比如 500, 测试小包通不通 2. udp 源地址选择问题, -s -B 加 IP, 绑定到你要测试的 IP 上 3. 有问题应该自己 tcpdump 抓包看 iperf3 tcp -b 100M 只能约束,不能摆脱拥塞,流量控制. 只用于在高速网络上低速测速,比如双 1G 直接跑丢包多, 可以测 -b 800m 看是不是 0 丢包,楼主这个场景 tcp -b 没有用,不需要. 如果 udp 小速率也丢包严重,那是网络质量真的差,电信的网一般小速率不会丢包,这也是为什么说电信适合打游戏 如果 udp 大速率固定丢包率,那是限速在起作用 |
 | 19 Tucao OP |
| 20 Tucao OP @hallieastem @1423 谢谢指出-l 参数, 是这台电脑的问题设置以后就可以了, 另一台不设置-l 也可以. 公网 ip 和 tailscale 的 UDP,都是被限制在 10M ``` Reverse mode, remote host --- is sending [ 4] local --- port 56271 connected to {public ip} port 25021 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-1.00 sec 2.38 MBytes 20.0 Mbits/sec 0.073 ms 17/4176 (0.41%) [ 4] 1.00-2.00 sec 1.13 MBytes 9.48 Mbits/sec 0.267 ms 2189/4163 (53%) [ 4] 2.00-3.00 sec 1.14 MBytes 9.55 Mbits/sec 0.207 ms 2194/4183 (52%) [ 4] 3.00-4.00 sec 1.13 MBytes 9.49 Mbits/sec 0.306 ms 2184/4166 (52%) [ 4] 4.00-5.00 sec 1.14 MBytes 9.57 Mbits/sec 0.176 ms 2178/4167 (52%) - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-5.00 sec 12.0 MBytes 20.1 Mbits/sec 0.133 ms 8777/20885 (42%) [ 4] Sent 20885 datagrams ``` |
 | 22 followad 92 天前 via iPhone 这些 b 企业 也就是压榨国民百姓， |
 | 23 hangguoguo 92 天前 就是上行大了之后被丢到监狱段的状态，上行 https 限速 5M 出，http 不限速，UDP1-5M ， |
 | 24 Ipsum 92 天前 之前 wg 还能苟活，现在只有 xray 的 http 混淆能用了。op 可以试试效果。host 就写 cloud.189.cn |
 | 25 barnettluo1994 92 天前 @renchong 这种一般中间是加了个隧道，通过隧道过去的。然后压制连接数，还有一些安全上的过滤 总之体验很糟糕 |
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