CHAPTER 1 | Introduction
Overview
Figure 1: Front Panels
LGB6050A
Port Status LEDs Stack ID Serial Console Port
LGB6026A
10/100/1000 Mbps RJ-45 Ports System Status LEDs SFP Slots
1 2 3 4 5 6 7 8 9 1 0 11 1 2 13 14 15 16 17 18 19 20 21 22 23 24
21 22 23 24 Stack ID Master
Select
Console
Figure 2: Rear Panel
Power Socket
Redundant Power Socket Module Slots Stacking Ports
SWITCH
A
RCHITECTURE
These Gigabit Ethernet switches employ a wire-speed, no n -bloc kin g s w i tchi ng
fabric. This permits simultan eous wire-speed transport of multiple packets at low
latency on all ports. The switches also feature full-d uplex capability on all ports,
which effectively doubles the bandwidth of each connection.
For
communications
between different VLANs, these
switches
use
IP routing. For
communications within the same VLAN, they use st ore-and-forward switching to
ensure maximum data integrity. With store-and-forward switching, the entire
packet must be received into a buffer and checked for validity befor e bei ng
forwarded. This prevents errors fro m being propagated throughout the network.
These switches include built-in stacking ports that enable up to eight units to be
connected together through a 48 Gbps stack backplane. The switch stack can be
managed from a master unit using a single IP address.
These switches also include two slots on the rear panel for slide-in single-port
10GBASE modules with SFP+ transceivers.
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