ZyXEL Communications MGS-3712F User Manual page 86

Chapter 8 Basic Setting
Table 10 Basic Setting > Switch Setup (continued)
LABEL
Join Timer
Leave Timer
Leave All
Timer
Priority Queue Assignment
IEEE 802.1p defines up to eight separate traffic types by inserting a tag into a MAC-layer
frame that contains bits to define class of service. Frames without an explicit priority tag
are given the default priority of the ingress port. Use the next fields to configure the
priority level-to-physical queue mapping.
The Switch has eight physical queues that you can map to the 8 priority levels. On the
Switch, traffic assigned to higher index queues gets through faster while traffic in lower
index queues is dropped if the network is congested.
Priority Level (The following descriptions are based on the traffic types defined in the IEEE
802.1d standard (which incorporates the 802.1p).
Level 7
Level 6
Level 5
Level 4
Level 3
Level 2
Level 1
Level 0
Apply
Cancel
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DESCRIPTION
Join Timer sets the duration of the Join Period timer for GVRP in
milliseconds. Each port has a Join Period timer. The allowed Join Time
range is between 100 and 65535 milliseconds; the default is 200
milliseconds. See the chapter on VLAN setup for more background
information.
Leave Time sets the duration of the Leave Period timer for GVRP in
milliseconds. Each port has a single Leave Period timer. Leave Time
must be two times larger than Join Timer; the default is 600
milliseconds.
Leave All Timer sets the duration of the Leave All Period timer for GVRP in
milliseconds. Each port has a single Leave All Period timer. Leave All
Timer must be larger than Leave Timer.
Typically used for network control traffic such as router configuration
messages.
Typically used for voice traffic that is especially sensitive to jitter (jitter is
the variations in delay).
Typically used for video that consumes high bandwidth and is sensitive to
jitter.
Typically used for controlled load, latency-sensitive traffic such as SNA
(Systems Network Architecture) transactions.
Typically used for "excellent effort" or better than best effort and would
include important business traffic that can tolerate some delay.
This is for "spare bandwidth".
This is typically used for non-critical "background" traffic such as bulk
transfers that are allowed but that should not affect other applications
and users.
Typically used for best-effort traffic.
Click Apply to save your changes to the Switch's run-time memory. The
Switch loses these changes if it is turned off or loses power, so use the
Save link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.
Click Cancel to reset the fields.
MGS-3712/MGS-3712F User's Guide