Comtech EF Data CDM-625 - Page 166

CDM-625 Advanced Satellite Modem Revision 13
Front Panel Operation MN-CDM625
5–60
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.
For any VLAN ID (Trunk Mode) created, at a minimum, one port must be
defined as ‘Tagged’.
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:
VLAN Port Configuration
Port Port Mode Native VLAN ID
1 Trunk N/A
2 Trunk N/A
3
Trunk
N/A
4
Access
3400
VLAN ID Table
VLAN ID Port 1 Port 2 Port 3 Port 4
344 Tagged Filtered Tagged Filter
454 Filtered Tagged Tagged Untagged (Access mode)
3400 Filter Tagged Filter Untagged (Access mode)