Cabletron Systems DLM6C-AA, Руководство пользователя

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DLEHF-MA User’s Guide 2-1
CHAPTER 2
NETWORK REQUIREMENTS
Before installing the DLEHF-MA or a Fast Ethernet Interface Module,
review the requirements and specifications referred to in this chapter.
The network installation must meet the guidelines to ensure satisfactory
performance of this equipment. Failure to follow the guidelines may
produce poor network performance.
2.1 SmartTrunk
To connect the DLEHF-MA to a network so it can take advantage of the
SmartTrunk feature, there are certain rules concerning port connections
and configurations that must be followed for proper operation.
Section 5.19, describes SmartTrunking and provides the configuration
rules.
2.2 100BASE-TX NETWORK
The DLEHF-MA, with a DELTX-UI installed in ports 1 or 2, provides an
RJ45 connection that supports Category 5 UTP cabling. The device at the
other end of the twisted pair segment must support IEEE 802.3u
100BASE-TX Fast Ethernet operations. The cabling between the devices
must meet the test criteria for a 100BASE-TX link for the devices to
operate at 100 Mbps. Refer to the Cabletron Cabling Guide or DIGITAL
OPEN DECconnect Applications Guide for details.
The Cabletron Cabling Guide and DIGITAL OPEN DECconnect
Applications Guide referred to in the following sections, can be
found at http://www.networks.digital.com/
The DLEHF-MA with a DELTX-UI installed is capable of
operating at either 10 or 100 Mbps. The DELTX-UI can
automatically sense the speed of the other device and adjust its
speed accordingly.