ZyXEL Communications GLC1320G-55 Support Notes page 25

1.4. Apply the Rate limit profile to SFP ports.
Click Port > Enet to display the configuration screen and then select to which
Ethernet ports you would like to apply the Rate limit profile you have just
created.
For this example, choose Slot 2 and Port 1. Select Enable and select In640_Eg128
in the Rate Limit Profile field. Click Apply to save the changes.
1.5. Click Setup in the VLAN field to create three VLANs: VLAN 1 (for DATA),
VLAN 102 (for VOICE) and VLAN 103 (for VIDEO) on the SFP port.
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