3Com NJ240FX - IntelliJack Switch User Manual - page 52
48
C
HAPTER
4: U
SING
THE
C
ENTRAL
C
ONFIGURATION
M
ANAGER
The following chart shows the various options you can choose on a per port basis:
43 You can change the LAN Port Speed and Duplex settings. The default setting is for
the switch to automatically negotiate a speed and duplex that matches your
current network. However, you can select a setting between 10 and 100Mbps and
between Half and Full Duplex.
44 You can change the Maximum Frame Size setting if your network uses
non-standard frame sizes.
The standard maximum size of an Ethernet frame is 1518 bytes. If a VLAN tag is
added, the maximum size increases to 1522 bytes. As a result, this is the default
setting. If your network uses larger frames, you can select the 1536 byte option.
Restoring to Base Configurations
45 At the bottom of this window is an option to restore some of the configuration
settings to their default values. If you check this box, the following settings will be
restored:
Priority Option
0
2
4
6
Multiplier
1
2
4
8
Rate limiting option
128 Kbps
128 Kbps
256 Kbps
512 Kbps
1 Mb
256 Kbps
256 Kbps
512 Kbps
1 Mb
2 Mb
512 Kbps
512 Kbps
1 Mb
2 Mb
4 Mb
1 Mb
1 Mb
2 Mb
4 Mb
8 Mb
2 Mb
2 Mb
4 Mb
8 Mb
16 Mb
4 Mb
4 Mb
8 Mb
16 Mb
32 Mb
8 Mb
8 Mb
16 Mb
32 Mb
64 Mb
No limit
Up to 100 Mb
Up to 100 Mb
Up to 100 Mb
Up to 100 Mb
NOTE: The LAN Port Speed and Duplex settings will not work for the NJ240FX
because you cannot configure the fiber uplink. This field will be grayed out if
you are using the Configuration Management software with an NJ240FX.
Global Setting
Default Value
Max Frame Size
1518 or 1522 if tagged
Counter Mode
Count good frames
Priority Scheduling Mode
8, 4, 2, 1 weighted
VLAN Tag for LAN Port (egress)
Egress frame unmodified
VLAN Tag for LAN Port (ingress)
Ingress frame unmodified
Power Forward
Auto detection
Local Configuration
Enable
SNMP SET
Enable
SNMP Traps
Disabled
Event Alert
Level 2