Table 10 Switch Setup - ZyXEL Communications GS-4024 User Manual

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Table 10 Switch Setup

LABEL
VLAN Type
Bridge Control
Protocol
Transparency
IGMP Snooping
MAC Address
Learning
Aging Time
GARP Timer: Switches join VLANs by making a declaration. A declaration is made by issuing a Join
message using GARP. Declarations are withdrawn by issuing a Leave message. A Leave All message
terminates all registrations. GARP timers set declaration timeout values. See the chapter on VLAN
setup for more background information.
Join Timer
Leave Timer Leave Time sets the duration of the Leave Period timer for GVRP in milliseconds.
Leave All
Timer
Priority Queue Assignment
IEEE 802.1p defines up to 8 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 two 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
Chapter 7 Basic Setting
DESCRIPTION
Choose 802.1Q or Port Based. The VLAN Setup screen changes depending on
whether you choose 802.1Q VLAN type or Port Based VLAN type in this screen.
See Chapter 8 on page 81
Select Active to allow the switch to handle bridging control protocols (STP for
example). You also need to define how to treat a BPDU in the Port Setup screen.
Select the Active checkbox to enable IGMP snooping have group multicast traffic
only forwarded to ports that are members significantly reducing multicast traffic
passing through your switch. See
IGMP snooping.
Note: You cannot enable both IGMP snooping and IGMP at the
same time. Refer to
information.
MAC address learning reduces outgoing traffic broadcasts. For MAC address
learning to occur on a port, the port must be active.
Enter a time from 10 to 3000 seconds. This is how long all dynamically learned MAC
addresses remain in the MAC address table before they age out (and must be
relearned).
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.
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; the default is 1000 milliseconds.
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.
for more information.
Section 7.5 on page 74
Chapter 25 on page 157
GS-4024 User's Guide
for more information on
for more
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