Инструкция для ZYXEL GS3700-48

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Chapter 7 VLAN

GS3700/XGS3700 Series User’s Guide

The following table describes the labels in this screen.

7.5.6 Protocol Based VLANs

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.

Table 34

Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup

LABEL

DESCRIPTION

Active

Select this check box to activate this subnet based VLANs on the Switch.

DHCP-Vlan
Override

When DHCP snooping is enabled DHCP clients can renew their IP address through the DHCP
VLAN or via another DHCP server on the subnet based VLAN.

Select this checkbox to force the DHCP clients in this IP subnet to obtain their IP addresses
through the DHCP VLAN.

Apply

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.

Active

Select this check box to activate the IP subnet VLAN you are creating or editing.

Name

Enter up to 32 alphanumeric characters to identify this subnet based VLAN.

Enter the IP address of the subnet for which you want to configure this subnet based VLAN.

Mask-Bits

Enter the bit number of the subnet mask. To find the bit number, convert the subnet mask
to binary format and add all the 1’s together. Take “255.255.255.0” for example. 255
converts to eight 1s in binary. There are three 255s, so add three eights together and you
get the bit number (24).

VID

Enter the ID of a VLAN with which the untagged frames from the IP subnet specified in this
subnet based VLAN are tagged. This must be an existing VLAN which you defined in the
Advanced Application > VLAN > Static VLAN screen.

Priority

Select the priority level that the Switch assigns to frames belonging to this VLAN.

Add

Click this to create a new entry or to update an existing one.

This saves 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.

Cancel

Click Cancel to begin configuring this screen afresh.

Index

This is the index number identifying this subnet based VLAN. Click on any of these numbers
to edit an existing subnet based VLAN.

Active

This field shows whether the subnet based VLAN is active or not.

Name

This field shows the name the subnet based VLAN.

This field shows the IP address of the subnet for this subnet based VLAN.

Mask-Bits

This field shows the subnet mask in bit number format for this subnet based VLAN.

VID