Full-Duplex; Network Configuration Example - Extreme Networks BlackDiamond 6800 Hardware Installation Manual

B D O
LACK IAMOND VERVIEW
For more information on 1000BASE-SX and 1000BASE-LX link characteristics,
refer to IEEE Draft P802.3z/D5.0, Table 38-2 and Table 38-6.
F -D
ULL UPLEX
The BlackDiamond system 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 BlackDiamond 6800
autonegotiate for half- or full-duplex operation.
N C
ETWORK ONFIGURATION
The BlackDiamond can be used as a core network switch, a segment switch, or a server
switch. When used as a core network switch, the BlackDiamond performs
collapsed-backbone routing and switching at wire-speed, allowing it to handle the
growing influx of intranetwork and Internet traffic that travels between multiple
networks.
When used as a high-density segment switch in the wiring closet, the BlackDiamond
can aggregate the hierarchy of legacy hubs and switches that support desktop
connections. When the BlackDiamond is used to perform segment switching at Layer 3,
local traffic stays within the subnet and does not needlessly enter the core.
When used as a server switch, the BlackDiamond supports 10/100 Mbps segments and
Gigabit Ethernet segments, handling traffic to and from servers in the data center. This
application ensures sufficient bandwidth between servers and to segments. Conversely,
the BlackDiamond can support Gigabit Ethernet segments and 10/100Mbps server links
to optimize client-to-server traffic. Multiple 10, 100, and 1,000 Mbps switch ports can be
trunked into one logical link between the data centers, the network cores, and
high-performance servers.
Figure 1-1 shows an example of the BlackDiamond used in a network configuration.
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E
XAMPLE
B D H I
LACK IAMOND ARDWARE NSTALLATION
G
UIDE