226
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
interface
interface-type
interface-number
N/A
3. Set the port link type.
port link-type
{
hybrid
|
trunk
}
By default, the link type of a port is
access
.
4. Configure the port to allow
packets from its PVID and
the transparent VLANs to
pass through.
• For the hybrid port:
port hybrid vlan vlan-id-list
{ tagged | untagged }
• For the trunk port:
port trunk permit vlan
{ vlan-id-list | all }
By default, a trunk port allows
packets only from VLAN 1 to pass
through. A hybrid port is an
untagged member of the VLAN to
which the port belongs when its
link type is
access
.
5. Specify transparent VLANs.
qinq transparent-vlan
vlan-id-list
By default, transparent
transmission is not configured for
any VLANs.
Configuring the TPID for VLAN tags
TPID identifies a frame as an 802.1Q tagged frame. The TPID value varies by vendor. On an HPE
device, the TPID in the 802.1Q tag added on a QinQ-enabled port is 0x8100 by default, in
compliance with IEEE 802.1Q. In a multi-vendor network, make sure the TPID setting is the same
between directly connected devices so 802.1Q tagged frames can be identified correctly.
TPID settings include CVLAN TPID and SVLAN TPID.
A QinQ-enabled port uses the CVLAN TPID to match incoming tagged frames. An incoming frame is
handled as untagged if its TPID is different from the CVLAN TPID. The device does not modify the
TPID in CVLAN tags.
SVLAN TPIDs are configurable on a per-port basis. A service provider-side port uses the SVLAN
TPID to replace the TPID in outgoing frames' SVLAN tags and match incoming tagged frames. An
incoming frame is handled as untagged if the TPID in its outer VLAN tag is different from the SVLAN
TPID.
For example, a PE device is connected to a customer device that uses the TPID 0x8200 and to a
provider device that uses the TPID 0x9100. For correct packet processing, you must set the CVLAN
TPID and SVLAN TPID to 0x8200 and 0x9100 on the PE, respectively.
The TPID field is at the same position as the EtherType field in an untagged Ethernet frame. To
ensure correct packet type identification, do not set the TPID value to any of the values listed in Table
19.
Table 19
Reserved EtherType values
Protocol type Value
ARP 0x0806
PUP 0x0200
RARP 0x8035
IP 0x0800
IPv6 0x86dd
PPPoE 0x8863/0x8864
MPLS 0x8847/0x8848
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