Installation guide

S
UMMIT
H
ARDWARE
I
NSTALLATION
G
UIDE
1-5
S
UMMARY OF
F
EATURES
*E
XTREME
N
ETWORKS PROPRIETARY
. C
AN BE CONNECTED TO
1000BASE-LX
ON SINGLE
-
MODE FIBER USING A MAXIMUM DISTANCE
OF
5,000 M
ETERS
.
For more information on 1000BASE-SX and 1000BASE-LX link characteristics,
refer to IEEE Draft P802.3z/D4.2, Table 38-2 and Table 38-6.
F
ULL
-D
UPLEX
The Summit switch provides full-duplex support for all ports. Full-duplex allows
frames to be transmitted and received simultaneously and, in effect, doubles the
bandwidth available on a link. All 10/100 Mbps ports on the Summit autonegotiate for
half- or full-duplex operation.
P
ORT
R
EDUNDANCY
The Summit2, Summit3, and Summit48 have an optional redundant Gigabit Ethernet
port. Using the redundant port, you can dual-home these models to one or two
switches. Figure 1-1 illustrates a Summit2 dual-homed to two different switches.
100BASE-FX 50/125um Multimode Fiber
(half-duplex operation
50/125um Multimode Fiber
(full-duplex operation)
62.5/125um Multimode Fiber
(half-duplex operation)
52.5/125um Multimode Fiber
(full-duplex operation)
400 Meters
2000 Meters
400 Meters
2000 Meters
100BASE-TX
10BASE-T
Category 5 UTP Cable (100Mbps)
Category 3 UTP Cable (10Mbps)
100 Meters
100 Meters
Table 1-2:
Media Types and Distances (continued)
Standard Media Type
Mhz/Km
Rating
Maximum
Distance
SummitInstall.book Page 5 Thursday, February 25, 1999 12:54 PM