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N
P
ETWORK
LANNING
Remote Connections with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type.
A 1000BASE-SX (MMF) link can connect to a site up to 550 meters away,
a 1000BASE-LX (SMF) link up to 10 km, and a 1000BASE-ZX link up to
70 km. This allows a switch stack to serve as a collapsed backbone,
providing direct connectivity for a widespread LAN.
A 1000BASE-SX SFP transceiver can be used for a high-speed connection
between floors in the same building, and a 1000BASE-LX transceiver can
be used for high-bandwidth core connections between buildings in a
campus setting. For long-haul connections, a 1000BASE-ZX SFP
transceiver can be used to reach another site up to 70 kilometers away.
The figure below illustrates three GSW-1676 switches stack
interconnecting multiple segments with fiber cable.
Server Farm
Remote Switch
level
GSW-2476 24 Port Gigabit w 4 Port SFP Web Smart Switch
-
/ -
1
2
3
4
5
o n e
Power
13 14 15 16 17 18 19 20 21 22 23 24
2-4
level
o n e
1000BASE-SX MMF
(500 m)
1
2
3
4
5
6
7
8
9
10
11
12
6
7
8
9
10 11
12
1000
Shared SFP Port
Link/Act
1000
Link/Act
13
14
15
16
17
18
19
20
21
22
23
24
21
22
23
24
10/100 Mbps Segments
...
Figure 2-3 Remote Connections with Fiber Cable
Headquarters
-
/ -
GSW-1676 16 Port Gigabit w 4 Port SFP Web Smart Switch
1000 M
1
2
3
4
5
6
7
8
Link/Act
1000 M
9
10 11
12
13 14 15 16
Link/Act
Power
Remote Switch
level
GSW-2476 24 Port Gigabit w 4 Port SFP Web Smart Switch
o n e
1
2
3
4
5
9
10
11
12
13
1000BASE-LX SMF
(5 kilometers)
1
2
3
4
5
6
7
8
9
10
11
12
-
/ -
1
2
3
4
5
6
7
8
9
10 11
12
1000
Shared SFP Port
Link/Act
1000
Link/Act
Power
13 14 15 16 17 18 19 20 21 22 23 24
13
14
15
16
17
18
19
20
21
22
23
24
21
22
23
...
6
7
8
Shared SFP Port
14
15
16
13
14
15
16
24
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