Optimasi PPPoE Speedy with MTU

Iseng2 wa googling tentang koneksi speedy.. ada salah satu yg buat gw tertarik buat nyobanya. Yaitu setting MTU untuk koneksi pppoenya, secara default MTU kita di 1400. Kalo kita dapet value yg cocok, bisa mempercepat koneksi kita loh.

Nah skrng kita coba trial dan error dulu, MTUnya distandart dulu. kita hanya menggunakan fasilitas ping.

Command di windows xp :

ping -f -l 1500 www.yahoo.com

Command di Ubuntu :

ping -M do -s 1500 www.yahoo.com

Kita mulai dari nilai terbesar yaitu 1500, coba perlahan turun kan sedikit2 sampai dapat value yg mantab.

Ini wa coba di ubuntu ane.. lihat perbedaan pingnya

satria@satria-laptop:~$ ping -M do -s 1462 http://www.yahoo.com
PING any-fp.wa1.b.yahoo.com (72.30.2.43) 1462(1490) bytes of data.
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=1 ttl=54 time=292 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=2 ttl=54 time=302 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=3 ttl=54 time=294 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=4 ttl=54 time=293 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=5 ttl=54 time=297 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=6 ttl=54 time=293 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=7 ttl=54 time=298 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=8 ttl=54 time=313 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=9 ttl=54 time=317 ms
1470 bytes from ir1.fp.vip.sk1.yahoo.com (72.30.2.43): icmp_seq=10 ttl=54 time=317 ms
— any-fp.wa1.b.yahoo.com ping statistics —
10 packets transmitted, 10 received, 0% packet loss, time 9011ms
rtt min/avg/max/mdev = 292.276/302.038/317.466/9.637 ms

satria@satria-laptop:~$ ping -M do -s 1464 http://www.yahoo.com|
PING any-fp.wa1.b.yahoo.com (98.137.149.56) 1464(1492) bytes of data.
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=1 ttl=54 time=460 ms

1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=2 ttl=54 time=459 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=3 ttl=54 time=454 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=4 ttl=54 time=456 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=5 ttl=54 time=452 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=6 ttl=54 time=454 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=7 ttl=54 time=457 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=10 ttl=54 time=458 ms
1472 bytes from ir1.fp.vip.sp2.yahoo.com (98.137.149.56): icmp_seq=11 ttl=54 time=460 ms
^C
— any-fp.wa1.b.yahoo.com ping statistics —
11 packets transmitted, 9 received, 18% packet loss, time 10024ms
rtt min/avg/max/mdev = 452.704/457.295/460.674/2.864 ms
satria@satria-laptop:~$

Untuk MTU yg optimal berbeda2 kyknya disetiap daerah

sumber : adamonline

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