x930 Series Installation Guide for Virtual Chassis Stacking
31
10/100/1000Base-T Copper Ports
The copper ports on the switches are described in this section.
Speed
The ports can operate at 10, 100, or 1000 Mbps. The speeds may be set
manually using the management software or automatically with Auto-
Negotiation (IEEE 802.3u), the default setting.
Note
The ports must be set to Auto-Negotiation to function at 1000 Mbps
and are not compatible with devices that are not IEEE 802.3u
compliant.
Duplex Mode
The copper ports can operate in either half- or full-duplex mode. The
duplex mode of a port, like port speed, may be set manually using the
management software or automatically with Auto-Negotiation (IEEE
802.3u), the default setting.
The speed and duplex mode settings of a port may be set independently
of each other. For example, a port may be configured such that its speed
is set manually while its duplex mode is established through Auto-
Negotiation.
Note
A switch port should not use Auto-Negotiation to set its duplex mode
if it is connected to a network device that does not support Auto-
Negotiation for 10 or 100 Mbps operation and has a fixed duplex
mode of full-duplex. Otherwise, a duplex-mode mismatch may occur
in which a switch port and a network device operate at different
duplex modes. The duplex modes of switch ports that are connected
to network devices that do not support Auto-Negotiation should be
set manually through the management software.
Wiring
Configuration
The wiring configuration of a port operating at 10 or 100 Mbps can be MDI
or MDI-X. The wiring configurations of a switch port and a network device
connected with straight-through copper cabling have to be opposite, such
that one device is using MDI and the other MDI-X. For instance, a switch
port has to be set to MDI-X if it is connected to a network device set to
MDI.
You may set the wiring configurations of the ports manually or let the
switch configure them automatically with auto-MDI/MDI-X (IEEE 802.3ab-
compliant). This feature enables the switch to automatically negotiate with
network devices to establish their proper settings.
Содержание AT-x930-28GPX
Страница 8: ...Contents 8...
Страница 12: ...Tables 12...
Страница 16: ...Preface 16...
Страница 82: ...Chapter 2 Virtual Chassis Stacking 82...
Страница 92: ...Chapter 3 Beginning the Installation 92...
Страница 102: ...Chapter 4 Installing the Power Supplies 102...
Страница 118: ...Chapter 7 Installing the Switch in an Equipment Rack 118 Figure 53 Attaching the Equipment Rack Brackets...
Страница 124: ...Chapter 8 Installing the Switch on a Wall 124 Figure 58 Minimum Wall Area Dimensions with the Front Panel on the Right...
Страница 214: ...Appendix A Technical Specifications 214...