背景：
服务器 A：200mbps 带宽
服务器 B：2Gbps 带宽
服务器 A 发往服务器 B：
iperf3 -c <服务器 B>[ ID] Interval Transfer Bitrate Retr Cwnd[ 5] 0.00-1.00 sec 27.2 MBytes 228 Mbits/sec 3119 498 KBytes [ 5] 1.00-2.00 sec 23.8 MBytes 199 Mbits/sec 755 506 KBytes [ 5] 2.00-3.00 sec 23.8 MBytes 199 Mbits/sec 1555 515 KBytes [ 5] 3.00-4.00 sec 25.0 MBytes 210 Mbits/sec 2223 523 KBytes [ 5] 4.00-5.00 sec 23.8 MBytes 199 Mbits/sec 2233 532 KBytes [ 5] 5.00-6.00 sec 23.8 MBytes 199 Mbits/sec 2329 515 KBytes [ 5] 6.00-7.00 sec 23.8 MBytes 199 Mbits/sec 2315 515 KBytes [ 5] 7.00-8.00 sec 25.0 MBytes 210 Mbits/sec 2342 554 KBytes [ 5] 8.00-9.00 sec 23.8 MBytes 199 Mbits/sec 2244 523 KBytes [ 5] 9.00-10.00 sec 23.8 MBytes 199 Mbits/sec 2343 498 KBytes - - - - - - - - - - - - - - - - - - - - - - - - -[ ID] Interval Transfer Bitrate Retr[ 5] 0.00-10.00 sec 243 MBytes 204 Mbits/sec 21458 sender[ 5] 0.00-10.01 sec 240 MBytes 201 Mbits/sec receivermtr -rw <服务器 B>Start: 2025-09-16T09:04:47+0000HOST: vps2009-cus1179 Loss% Snt Last Avg Best Wrst StDev 1.|-- 38.55.108.1 0.0% 10 0.4 0.4 0.3 0.5 0.1 2.|-- 216.40.84.2 0.0% 10 0.3 1.8 0.3 14.9 4.6 3.|-- e40.lax-csla2-cr2.globalsecurelayer.com 0.0% 10 0.6 0.4 0.3 0.6 0.1 4.|-- po2.lax-csla2-bb5.globalsecurelayer.com 0.0% 10 0.4 0.5 0.4 0.6 0.1 5.|-- po5.lax-csla2-cr3.globalsecurelayer.com 0.0% 10 0.3 0.4 0.3 0.5 0.1 6.|-- e49.phx-pnap-bb1.globalsecurelayer.com 0.0% 10 7.8 7.9 7.7 8.2 0.2 7.|-- e54.phx-pnap-cr2.globalsecurelayer.com 0.0% 10 7.8 7.8 7.7 7.9 0.1 8.|-- 1gservers.phoenix.ix.ninja-ix.net 0.0% 10 7.9 7.8 7.6 7.9 0.1 9.|-- cr2.pnap.phx.1gservers.com 0.0% 10 7.9 8.5 7.8 11.3 1.3 10.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 11.|-- <服务器 B> 0.0% 10 7.8 7.9 7.8 8.0 0.1服务器 B 发往服务器 A：
iperf3 -c <服务器 A>[ ID] Interval Transfer Bitrate Retr Cwnd[ 5] 0.00-1.00 sec 384 KBytes 3.14 Mbits/sec 31 2.83 KBytes [ 5] 1.00-2.00 sec 512 KBytes 4.20 Mbits/sec 27 2.83 KBytes [ 5] 2.00-3.00 sec 256 KBytes 2.10 Mbits/sec 32 4.24 KBytes [ 5] 3.00-4.00 sec 128 KBytes 1.05 Mbits/sec 18 2.83 KBytes [ 5] 4.00-5.00 sec 384 KBytes 3.15 Mbits/sec 24 4.24 KBytes [ 5] 5.00-6.00 sec 256 KBytes 2.10 Mbits/sec 32 2.83 KBytes [ 5] 6.00-7.00 sec 1.62 MBytes 13.6 Mbits/sec 12 33.9 KBytes [ 5] 7.00-8.00 sec 640 KBytes 5.24 Mbits/sec 44 1.41 KBytes [ 5] 8.00-9.00 sec 128 KBytes 1.05 Mbits/sec 10 1.41 KBytes [ 5] 9.00-10.00 sec 128 KBytes 1.05 Mbits/sec 26 2.83 KBytes - - - - - - - - - - - - - - - - - - - - - - - - -[ ID] Interval Transfer Bitrate Retr[ 5] 0.00-10.00 sec 4.38 MBytes 3.67 Mbits/sec 256 sender[ 5] 0.00-10.22 sec 4.38 MBytes 3.59 Mbits/sec receivermtr -rw <服务器 A>Start: 2025-09-16T09:04:37+0000HOST: nima.ba Loss% Snt Last Avg Best Wrst StDev 1.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 2.|-- 206.168.191.44 0.0% 10 0.4 0.8 0.3 4.2 1.2 3.|-- cr3.pnap.phx.1gservers.com 0.0% 10 0.3 0.3 0.3 0.4 0.0 4.|-- l237.phx-pnap-cr2.globalsecurelayer.com 0.0% 10 1.0 0.8 0.3 1.1 0.3 5.|-- e52.phx-pnap-bb1.globalsecurelayer.com 10.0% 10 1.3 1.0 0.5 2.0 0.5 6.|-- e2.lax-csla2-cr3.globalsecurelayer.com 0.0% 10 8.4 8.2 7.7 9.0 0.4 7.|-- po6.lax-csla2-bb5.globalsecurelayer.com 0.0% 10 8.5 8.3 7.7 8.9 0.4 8.|-- 172.16.0.0 0.0% 10 8.3 8.3 7.9 8.6 0.2 9.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 10.|-- global-routing.po1.cs1.csla2.as1054.net 10.0% 10 7.9 8.2 7.9 8.8 0.3 11.|-- <服务器 A> 0.0% 10 8.1 8.3 7.9 8.6 0.3有大佬知道这是发生了什么吗
测 UDP 的时候 A 传给 B 没有丢包，B 传给 A 会出现 5% 的丢包
明明不都是同一条线路吗（gsl，为啥会有区别啊）
有办法优化/解决这个问题吗
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