TCP Window: RWIN) = 29312? - Linux

請教版上前輩
假 FTTX 20M/5M TCPWINDOWS RWIN 值正常嗎？有做優化*註 但數值不變？
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
要如何正確修改與鍵入市適當的數值？

SpeedGuide.net TCP Analyzer Results
Tested on: 2016.05.27 22:49
IP address: 112.104.xx.xx
Client OS/browser: Linux (Firefox 44.0)

TCP options string: 020405780402080a000075400000000001030307
MSS: 1400
MTU: 1440
TCP Window: 29312 (NOT multiple of MSS)
RWIN Scaling: 7 bits (2^7=128)
Unscaled RWIN : 229
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 1172kbps (147KBytes/s)
BDP limit (500ms): 469kbps (59KBytes/s)
MTU Discovery: ON
TTL: 43
Timestamps: ON
SACKs: ON
IP ToS: 00000000 (0)

註
echo 256960 > /proc/sys/net/core/rmem_default
echo 256960 > /proc/sys/net/core/rmem_max
echo 256960 > /proc/sys/net/core/wmem_default
echo 256960 > /proc/sys/net/core/wmem_max
echo 0 > /proc/sys/net/ipv4/tcp_timestamps
echo 0 > /proc/sys/net/ipv4/tcp_sack
echo 1 > /proc/sys/net/ipv4/tcp_window_scaling

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