Milan Technology MIL-S3580 - Manual (Page 53)

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discards the frame. If Ingress Filtering is disabled, any tagged frame is
accepted on any port on the switch. It does not matter whether the frame and
port belong to the same or different VLANs.
x Per-Port Priority allows port based priorities. You can designate the priority
for the receiving port so that any frame received will be transmitted to the
destination port with the programmed priority. However, if the received frame
has a layer 3 priority (TOS or DiffServ) will have precedence over port based
priority. When set, all ports by default have the lowest priority possible. If a
priority different from lowest is wanted, the priority must be changed for each
individual port in the port configuration menu.
x HOLB Prevention - Head Of Line Blocking occurs when many ports send
frames to the same output port. This puts the frames in contention for output
port and all frames must wait behind, thus the head of the line goes first. The
shared memory switching fabric architecture eliminates any possibility of
head-of-line blocking when this feature is enabled.
x When QoS is enabled, you can map the Type of Service of your choice
(according to IEEE 802.1p) to the four priority levels provided.
x There are 3 different modes of VLANs supported in this switch, 802.1Q,
Port-Based VLANs and MTU/MDU. The choice you make here will ultimately
decide the VLAN mode and function for the entire switch. If one mode is
selected, the other two VLAN modes will have no effect on the switch.
x GVRP Enable State is used with IEEE 802.1Q VLANs. GVRP enables the
switch to dynamically create 802.1Q compliant VLAN links with other
switches running GVRP. This reduces the chance for errors in VLAN
configuration by automatically providing VLAN ID (VID) consistency across
the network. You can use GVRP to propagate VLANs to other GVRP
switches instead of setting up VLANs in each switch. STP must be enabled
before GVRP is enabled. In order to activate GVRP without overlapping
VLANs, follow these steps:
1. Assign static VLANs.
2. Take out ports that belong to assigned VLANs from Default VLAN.
3. Assign those ports to Local VID in Switch Port Configuration Menu.
4. Tag the uplink port in the Untagged Configuration Menu.
5. Turn on STP in Switch Configuration Menu.
6. Turn on GVRP in Switch Configuration Menu.
7. Update Configuration Setting.
8. Cold Start in System Start Menu.
NOTE: Make sure the port you are connected to is not locked out after