Application Example; Connectivity Rules; 1000 Mbps Gigabit Ethernet Collision Domain - Foundry Networks EdgeIron 2402CF Installation Manual

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Application Example

This switch is specifically designed for delivering Internet access
to individual users in multi-dwelling or multi-tenant units
(MDUs/MTUs), such as apartment housing blocks, commercial
buildings or hotels. Some features of this application are
described below.

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the
connectivity rules listed below for Ethernet, Fast Ethernet, or
Gigabit Ethernet. However, note that because switches break up
the path for connected devices into separate collision domains,
you should not include the switch or connected cabling in your
calculations for cascade length involving other devices.

1000 Mbps Gigabit Ethernet Collision Domain

Maximum Fiber Optic Cable Distance for 1000BASE-SX
Fiber Size
62.5/125 micron
50/125 micron
Maximum Fiber Optic Cable Distance for 1000BASE-LX
Fiber Size
9/125 micron
3-2
Fiber Bandwidth
160 MHz/km
200 MHz/km
400 MHz/km
500 MHz/km
Fiber Bandwidth
N/A
© 2003 Foundry Networks, Inc.
Maximum Cable Length
2-220 m (7-722 ft)
2-275 m (7-902 ft)
2-500 m (7-1641 ft)
2-550 m (7-1805 ft)
Maximum Cable Length
2 m - 5 km (7 - 16404 ft)
February 2003