Más contenido relacionado Similar a [C4]deview2012 3g-network (17) [C4]deview2012 3g-network2. UMTS 2G
GSM
CDMA LTE-‐‑A
WiBro
HSDPA 3.9G
eHSPA EV-‐‑DO
LTE 4G
3GPP VoLTE WCDMA
3.5G
HSPA+
WiMAX HSUPA
3G
LTE-‐‑Advanced HSPA
339.
갤럭시S2
(단위 : Mbps)
출처: 벤치비 2012.8.22, 10주 동향
349. SYN+ACK t0
ACK A = TCP ping time
handshake
350. t1
HTTP request –
GET
k
HTTP response 200 O
Latency
363. SYN+ACK t0
ACK A = TCP ping time
handshake
364. t1
HTTP request –
GET
k
HTTP response 200 O
1. m.naver.com
402.
1
SYN
SYN+ACK
ACK
HTTP request
– G ET
HTTP response 200
2 Ok
Round-trip
410.
1
a.naver.com?
DNS
SYN
2
SYN+ACK
ACK
HTTP request
3
– G ET
Ok
HTTP response 200
Round-trip
418.
b.naver.com?
SYN
1 DNS
SYN+ACK
ACK
2
HTTP request
– G ET
HTTP response 302 Redire
a.naver.com?
ct to a.naver.com 3
DNS
4 SYN
SYN+ACK
ACK
5
HTTP request
6
– G ET
Ok
HTTP response 200
Round-trip
461.
RNC(Radio Network Controller)
466.
b.nav
er.com
?
DNS
SYN
SYN+ACK
ACK
HTTP request
– G ET
Round-trip
475.
DNS
SYN
SYN+ACK
ACK
HTTP request
– G ET
Ok
HTTP response 200
610.
45000
40000
35000
TCP sequence number
30000
25000
20000
15000
10000
5000
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
시간 (초)
646.
45000
40000
35000
TCP sequence number
30000
25000
20000
15000
10000
5000
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
시간 (초)
698. 45000
40000
35000
TCP sequence number
처음
711.
20000
15000
10000
5000
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
시간 (초)
717. (at server)
# ip route change default via gateway dev eth0 initcwnd 16
Note