Filter
Top Products
4-12 C
HAPTER
4: M
ANAGING
T
HE
S
WITCH
3000 TX
IFM is not available on a port that has full duplex
enabled:
■
If the Duplex Mode field in this screen is set to
Full Duplex, the Intelligent Flow Management
field is not displayed
■
In all other cases where the port has full duplex
enabled, IFM has no effect
Disable Interactive Access
Yes/ No
This field allows
you to disable the Interactive Access feature of PACE
(Priority Access Control Enabled) on the current port.
You should disable Interactive Access on a port if:
■
The port is connected to a repeater
■
The port is connected to a device with Interac-
tive Access enabled
For more information about Interactive Access, refer
to “
Setting Up the Switch Unit” on page 4-9.
VLT Mode:
Enable / Disable
This field allows you to
specify whether the port is a VLT (Virtual LAN Trunk)
port. A Virtual Lan Trunk (or VLT) is a
Switch-to-Switch link that carries traffic for multiple
VLANs. To create a VLT, the ports at both ends of
the link must be VLT ports.
For more information about VLTs, refer to “
VLANs
and the Switch 3000 TX” on page 5-3.
If the port uses AutoSelect VLAN Mode (refer to
the VLAN Configuration Mode field), you cannot
specify that the port is a VLT port.
Duplex Mode
Half Duplex / Full Duplex / Unit
Default
This field allows you to specify the duplex
mode of the port:
■
Full Duplex
— Full duplex allows frames to be
transmitted and received simultaneously and, in
effect, doubles the potential throughput of a link.
In addition, full duplex also supports
100BASE-FX cable runs of up to 2km (6562ft).
You should only enable full duplex on a
point-to-point link between the Switch and
another device with full duplex support.
■
Half Duplex
— You should use half duplex if the
port connects to a shared Ethernet LAN seg-
ment, or if the device at the other end of a
point-to-point link does not support full duplex.
■
Unit Default
— The duplex mode of the port is
defined by the Duplex Mode field in the Unit
Setup screen. This is the default setting.
VLAN Configuration Mode
Port / AutoSelect /
Unit Default
This field allows you to specify how the
port is placed in a VLAN:
■
Port
— The port uses Port VLAN Mode, which
means that the port is manually placed in the
required VLAN.
■
AutoSelect
— The port uses AutoSelect VLAN
Mode, which means that the port is automatically
placed in the required VLAN by referring to a
VLAN Server database in 3Com’s Transcend Enter-
prise Manager software.