3Com S7902E, Configuration Manual

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1-9
To do... Use the command... Remarks
Specify the CVLAN for the
VLAN mapping remark customer-vlan-id
vlan-id-value
Required
Exit to system view quit —
Create a QoS policy and enter
QoS policy view
qos policy policy-name Required
Map the SVLAN to the CVLAN
by associating the traffic class
with the traffic behavior
classifier tcl-name behavior
behavior-name
Required
Exit to system view quit —
Configuring Many-to-One VLAN Mapping
Configuring Many-to-One VLAN Mapping
Configuration prerequisites
z
All service terminals of home users are using DHCP for obtaining an IP address. For how to get an
IP address through DHCP, refer to DHCP Configuration in the IP Services Volume .
z
The CVLAN-to-SVLAN mappings have been planned.
Configuration procedure
Follow these steps to configure a many-to-one VLAN mapping:
To do... Use the command... Remarks
Enter system view
system-view
—
Enable DHCP snooping dhcp-snooping
Required
Disabled by default.
Create a VLAN
and enter VLAN
view
vlan vlan-id
Enable ARP
detection
arp detection enable
Enable ARP
detection on the
CVLANs and the
SVLAN for the
VLAN mapping
Exit to system
view
quit
Required
Disabled by default.
Repeat these steps for
all CVLANs and the
SVLAN that the VLAN
mapping involves.
Configure an uplink policy to map the
CVLANs to the same SVLAN
Refer to Table 1-3 . Required
Enter the interface view of the
downlink port interface interface-type
interface-number
—
Set the link type of the downlink port to
trunk
port link-type trunk Required
Configure the downlink port to permit
the specified CVLANs and SVLANs to
pass through
port trunk permit vlan
{ vlan-id-list | all }
Required
By default, a trunk port
permits only VLAN 1 to
pass through.