H3C Technologies H3C S10500 Series Switches - Manual (Page 213)

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To do... Use the command... Remarks
Set the port as a DHCP snooping
trusted port and disable the port to
record IP-to-MAC bindings for
DHCP clients
dhcp-snooping trust
no-user-binding
Required
By default, all ports are DHCP snooping
untrusted ports.
Enable customer-side QinQ qinq enable downlink
Required
By default, customer-side QinQ is disabled
on all ports.
Apply the uplink policy to the
incoming traffic qos apply policy
policy-name inbound
Required
CAUTION:
Before applying a QoS policy to the customer-side port, enable customer-side QinQ on the port. Before
disabling customer-side QinQ on the customer-side port, remove the QoS policy from the port first.
Configuring the network-side port
Follow these steps to configure the network-side port:
To do... Use the command... Remarks
Enter system view system-view —
Enter Ethernet interface view
interface interface-type
interface-number
—
Configure the port as a trunk port port link-type trunk
Required
The default link type of an Ethernet port is
access.
Assign the port to SVLANs
port trunk permit vlan
{ vlan-id-list | all } Required
By default, a trunk port is in only VLAN 1.
Configure the port as a DHCP
snooping trusted port
dhcp-snooping trust
Required
By default, all ports are DHCP snooping
untrusted ports.
Configure the port as an ARP
trusted port
arp detection trust
Required
By default, all ports are ARP untrusted ports.
Enable network-side QinQ qinq enable uplink
Required
By default, network-side QinQ is disabled
on all ports.
Configuring one-to-two VLAN mapping
Perform one-to-two VLAN mapping on the edge devices from which customer traffic enters SP networks,
on PE 1 and PE 4 in Figure 64 for example. One-to-two VLAN mapping enables the edge devices to
insert an outer VLAN tag to each incoming packet.
Perform these tasks to configure one-to-two VLAN mapping:
Task Description
Configuring an uplink policy Configures an uplink policy for the customer-side port (required).