Configuring Port Status - 3Com 4007 Implementation Manual

Table 32 Default Port Settings (continued)
Module
Interface Modules
(no on-board switching)
3CB9LG4
4-Port GBIC Gigabit Ethernet
(GEN) Interface Module
Configuring Port
Status
Factory Default
Setting for Front Factory Default Setting
Panel Ports for Backplane Ports
Front panel ports Uses the switch fabric
are enabled when module backplane ports.
GBICs are installed.
You can enable (place on-line) or disable (place off-line) Switch 4007
ports. When a port is enabled, frames are transmitted normally over that
port. When a port is disabled, the port neither sends nor receives frames.
CAUTION: Before you can configure two backplane ports as trunk ports,
both backplane ports must be enabled. Enabling both backplane ports,
(except for the 1000BASE-SX and 1000BASE-LX interface modules) can
cause a network loop. Enable both backplane ports only if you plan to
configure the two ports as a trunk port. See Table 32 for information
about backplane port settings, and Chapter 12 for information about
configuring trunk ports.
Default Port Settings
Notes
These modules do not switch
traffic, but rather act as a traffic
pipeline, passing traffic from their
front panel ports directly to the
backplane ports on the switch
fabric module.
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