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The following table shows some common latency values for networks and corresponding
file transfer times using TCP/IP (iSCSI).
Figure 1: Effect of TCP protocol on transfer bandwidth
City-wide
TCP/IP
Terrestrial Path
Performance
(MAN)
Latency (approx)
1
(ms)
2
RTT (ms)
Transfer Time For
12S
100MB File
The effect of bandwidth is very simple to understand and understand, as it allows the link
to achieve its theoretical maximum throughput. For example, using a single T1
connection, the maximum achievable rate is 1.55 mbps; for T3 it is 45 mbps; with OC3 it
increases to 155 mbps, and with Gigabit Ethernet (GigE) links this maximum reaches the
impressive order of Gigabits per second.
256
StorTrends/ManageTrends (version 2.7) Web Interface User's Guide for the StorTrends 2200 Storage Appliance
Transcontinental
Transocean
Terrestrial Path
Submarine Path
15
75
30
150
3m 7S
15m
Transglobal
Geostationary
Submarine Path
Satellite
125
340
250
680
27m
1h 10m
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