SMC Networks SMC8724ML3 Uživatelský manuál stáhnout pdf (Strana 37)

PPLICATION

OTES

2-7

Application Notes

1. Full-duplex operation only applies to point-to-point access (such as

when a switch is attached to a workstation, server or another switch).

When the switch is connected to a hub, both devices must operate in

half-duplex mode.

2. For network applications that require routing between dissimilar

network types, you can attach these switches directly to a multi-

protocol router. However, if you have to interconnect distinct VLANs

or IP subnets, you can take advantage of the wire-speed Layer 3

routing provided by these switches.

3. As a general rule, the length of fiber optic cable for a single switched

link should not exceed:

• 1000BASE-SX: 550 m (1805 ft) for multimode fiber

• 1000BASE-LX: 5 km (3.1 miles) for single-mode fiber

• 1000BASE-ZX: 100 km (62.1 miles) for single-mode fiber

• 10GBASE-LR: 10 km (6.2 miles) for single-mode fiber

• 10GBASE-SR: 300 m (984 ft) for multimode fiber

• 10GBASE-ER: 40 km (24.8 miles) for single-mode fiber

However, power budget constraints must also be considered when

calculating the maximum cable length for your specific environment.

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SMC Networks SMC8724ML3 Uživatelský manuál Strana 37