Connectivity Rules; 1000 Mbps Gigabit Ethernet Collision Domain - Foundry Networks OSI Installation Manual

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ETWORK LANNING

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the standard
connectivity rules for Ethernet, Fast Ethernet, and 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

Cable Type
Category 5, 5e, or 6 100-ohm UTP or STP
Fiber Diameter
62.5/125 micron
multimode fiber (MMF)
50/125 micron MMF
Fiber Diameter
9/125 micron single-mode
fiber (SMF)
3-6
Maximum 1000BASE-T Gigabit Ethernet Cable Length
Maximum 1000BASE-SX Fiber Optic Cable Distance
Maximum 1000BASE-LX Fiber Optic Cable Distance
Fiber Bandwidth
N/A
© 2003 Foundry Networks, Inc.
Maximum Cable Length
100 m (328 ft)
Fiber Bandwidth
160 MHz/km
200 MHz/km
400 MHz/km
500 MHz/km
Cable Length Range
2-220 m (7-722 ft.)
2-275 m (7-902 ft.)
2-500 m (7-1641 ft.)
2-550 m (7-1805 ft.)
Cable Length Range
2 m - 5 km (7-16,404 ft)
February 2003