Olicom CrossFire 8730, Reference Manual, Page: 93 / 234

79
CrossFire 8730 Switch Reference Guide, DOC-7047 v. 1.1 Switch Configuration
•
Waiting for
The virtual port is waiting for the port to come up.
port up
•
Up
The virtual port is up but not forwarding.
•
Forwarding
The virtual port is up and forwarding.
•
Temporary down
The virtual port is currently down because the port is
temporarily down.
MTU
You can only use the value 1500 as MTU.
MTU configured: 1500
Actual Fast Ethernet frame size: 1558
LF bits: 001
Max Broadcast Rate (frames/sec)
Sets the maximum broadcast frame rate; possible values are 0 to 5000 frames/sec
or Disabled. If enabled, this will limit the amount of broadcast frames being
forwarded from the Fast Ethernet side of the virtual port to the switch.
Default: Disabled
VLAN Tagging Mode
Sets the VLAN tagging mode of the virtual port; possible values are Tagged and
Untagged. As explained previously at most one virtual port on each Fast Ethernet
port can be untagged. All other virtual ports must be tagged and the 802.1Q VLAN
ID must be the same in both ends.
Preferably, the VLAN which is expected to have the largest amount of traffic
should be untagged, since VLAN tagging does impose a small overhead.
Default: Untagged for the first virtual port and Tagged for the subsequent ports.
FC Modification
Enabled FC modification preserves frame priority during translation between
Ethernet and Token-Ring (both directions). Possible values are Enabled and
Disabled. As discussed earlier a VLAN frame tag also contains a 3-bit priority field.
If FC modification is enabled, the Token-Ring frame priority in the FC byte is set
to the frame tag priority. If FC modification is disabled, the FC priority is set to 0,
and the frame tag priority is discarded.
When a Fast Ethernet port inserts a frame tag in a frame, and FC modification is
enabled the Fast Ethernet port uses the FC priority from Token-Ring frame.
Otherwise the frame tag priority is set to 0 and the FC priority is discarded.
Default: Disabled