Technical data

Getting Started
893-00992-D
1-7
• Port Mirroring
– Port-based
– MAC address-based
• Front-panel light emitting diodes (LEDs) to monitor the following:
– Power status
– System status
– Per-port status for the following:
– 100 Mb/s link
– 10 Mb/s link
– Half- and full-duplex transmission
– Tx/Rx activity
– Management enable/disable
• Upgradeable device firmware in nonvolatile flash memory using the Trivial
File Transfer Protocol (TFTP)
Autosensing
BayStack 350 switches are autosensing and autonegotiating devices. The term
autosense refers to a port’s ability to sense the speed of an attached device. The
term autonegotiation refers to a standardized protocol (IEEE 802.3u) that exists
between two IEEE 802.3u-capable devices. Autonegotiation allows the BayStack
350 switch to select the best of both speed and duplex modes.
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 350 switch reverts to
half-duplex mode.
When autonegotiation-capable devices are attached to the BayStack 350 switch,
the switch ports negotiate down from 100 Mb/s speed and full-duplex mode until
a supported speed and duplex mode is acknowledged by the attached device.
For more information about autosensing and autonegotiation modes, see
“Autonegotiation Modes” on page 4-5.