ZyXEL Communications Version 1.03 - Manual (Page 172)

Chapter 16 Ethernet Port Configuration
NetAtlas Workgroup User’s Guide
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The following table describes the fields in this screen.
16.10 Protocol VLAN
Protocol based VLANs allow you to group traffic into logical VLANs based on the protocol
you specify. When an upstream frame is received on a port (configured for a protocol based
VLAN), the switch checks if a tag is added already and its protocol. The untagged packets of
the same protocol are then placed in the same protocol based VLAN. One advantage of using
protocol based VLANs is that priority can be assigned to traffic of the same protocol.
Note: Protocol based VLAN applies to un-tagged packets and is applicable only when
you use IEEE 802.1Q tagged VLAN.
To open the Protocol VLAN screen, right-click on the switch in the Device List Panel, and
click Configuration > Ethernet Port > Protocol VLAN. Then select a device and the port(s)
to which you want to apply this configuration.
Table 87 Ethernet Port Configuration: Queue Method
LABEL DESCRIPTION
Q0 - Q7 For Weighted Fair Scheduling, select the queue weight here. Bandwidth is
divided across the different traffic queues according to their weights. Queues with
larger weights get more guaranteed bandwidth than queues with smaller weights.
For Gigabit/ Mini-GBIC ports, if you select 0 for the queue weight, the switch uses
Strictly Priority to service the queue.
GE Port SPQ
Enable
SPQ Select SPQ (Strict Priority Queuing) to service queues based on priority only.
When the highest priority queue empties, traffic on the next highest-priority queue
begins. The default queuing method is Strictly Priority.
Weighted Fair Scheduling is used to guarantee each queue's minimum
bandwidth based on their bandwidth portion (weight) (the number you configure
in the Weight field). Queues with larger weights get more guaranteed bandwidth
than queues with smaller weights.
WRR Select WRR (Weighted Round Robin Scheduling) to service queues on a rotating
basis based on their queue weight (the number you select from the drop-down list
box for the corresponding queue). Queues with larger weights get more service
than queues with smaller weights.
Apply Click Apply to save the changes.