Nortel 450-24t 用户指南
Using the BayStack 450 10/100/1000 Series Switch
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309978-D Rev 01
Autosensing is used when the attached device is not capable of autonegotiation or
is using a form of autonegotiation that is not compatible with the IEEE 802.3u
autonegotiation standard. In this case, because it is not possible to sense the
duplex mode of the attached device, the BayStack 450 switch reverts to
half-duplex mode.
is using a form of autonegotiation that is not compatible with the IEEE 802.3u
autonegotiation standard. In this case, because it is not possible to sense the
duplex mode of the attached device, the BayStack 450 switch reverts to
half-duplex mode.
When autonegotiation-capable devices are attached to the BayStack 450 switch,
the switch ports negotiate down from 100 Mb/s speed and full-duplex mode until
the attached device acknowledges a supported speed and duplex mode.
the switch ports negotiate down from 100 Mb/s speed and full-duplex mode until
the attached device acknowledges a supported speed and duplex mode.
For more information about autosensing and autonegotiation modes, see
“Autonegotiation Modes” on page 4-8.
“Autonegotiation Modes” on page 4-8.
Network Configurations
You can use BayStack 450 switches to connect workstations, personal computers
(PCs), and servers to each other by connecting these devices directly to the switch,
through a shared media hub that is connected to the switch, or by creating a virtual
LAN (VLAN) through the switch. This section provides five network
configuration examples using BayStack 450 switches:
(PCs), and servers to each other by connecting these devices directly to the switch,
through a shared media hub that is connected to the switch, or by creating a virtual
LAN (VLAN) through the switch. This section provides five network
configuration examples using BayStack 450 switches:
•
Desktop switch application
•
Segment switch application
•
High-density switched workgroup application
•
ATM application
•
Fail-safe stack application
Note:
All models of the BayStack 450 switch can be used interchangeably in
the following network configuration examples.