Comtech EF Data CDM-425 Installation And Operation Manual page 183

You must follow these rules when creating or adding a VLAN table entry:
•
The VLAN ID (0001-4095) must be unique – it cannot be a duplicate of any previously
assigned VLAN ID, including PVIDs in the VLAN ID table.
•
If a port is not in Trunk Mode (PortMode = Trunk), the behavior attribute for each port
may be set as Tagged or Filtered.
You must follow these rules when assigning PVIDs:
•
The PVID (0001-4095) must be unique – it cannot be a duplicate of any previously
assigned VLAN ID, including PVID. The only exception to this rule is that the default
value 0001 may be assigned as the PVID for all ports.
•
If a port is in Access Mode (Port Mode = Access), the behavior attribute for each port
may be set as Untagged or Filtered.
•
PVIDs are automatically ENTERed into the VLAN ID Table when changed.
•
When a new PVID entry is added to the VLAN ID Table, the "other" ports will default to
Filtered.
•
When a PVID is changed, the entry in the VLAN ID Table for that port will change to
Filtered. If the rest of the ports are also Filtered, then delete that entry. If any other port
has been marked Tagged, leave the entry in the table.
The following examples of the VLAN port configuration and ID tables are provided for user
reference:
Port
1
2
3
4
VLAN ID
344
454
3400
Front Panel Operation
For any VLAN ID (Trunk Mode) created, at a minimum, one port must be
defined as 'Tagged'.
VLAN Port Configuration
Port Mode
Trunk
Trunk
Trunk
Access
Port 1
Tagged
Filtered
Filter
CDM-425 Advanced Satellite Modem
VLAN ID Table
Port 2 Port 3
Filtered Tagged
Tagged Tagged
Tagged Filter
6–65
Revision 0
Native VLAN ID
N/A
N/A
N/A
3400
Port 4
Filter
Untagged (Access mode)
Untagged (Access mode)
MN-CDM-425