R21xx-HP FlexFabric 11900 MPLS Command Reference

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Default
The PW type is VLAN.
Views
PW class view
Predefined user roles
network-admin
Parameters
ethernet: Specifies the PW type as Ethernet.
vlan: Specifies the PW type as VLAN.
Usage guidelines
When the PW type is Ethernet, the PE encapsulates packets forwarded between the AC and PW as
follows:
• Traffic from the AC to the PW cannot carry the P-Tag assigned by the service provider. If traffic from
the AC has the P-Tag, the PE removes the P-Tag, adds the PW label and public tunnel encapsulation,
and forwards the traffic through the PW. If traffic from the AC does not have the P-Tag, the PE adds
the PW label and public tunnel encapsulation and forwards the traffic through the PW.
• For traffic received from the PW, if the AC access mode (configured by the xconnect vsi command)
is VLAN, the PE adds the P-Tag and forwards the traffic through the AC. If the AC access mode is
Ethernet, the PE directly forwards the traffic through the AC. The PE cannot modify or delete the
P-Tag for the traffic from the PW.
When the PW type is VLAN, the PE encapsulates packets forwarded between the AC and PW as follows:
• Traffic from the AC to the PW must carry the P-Tag. If traffic from the AC has the P-Tag, the PE keeps
the P-Tag when the peer PE does not require the ingress to modify the P-Tag or changes the P-Tag to
the expected value (which can be zero) when the peer PE requires the ingress to modify the P-Tag,
then adds the PW label and public tunnel encapsulation, and forwards the traffic through the PW.
If traffic from the AC does not have the P-Tag, the PE adds a P-Tag of 0 when the peer PE does not
require the ingress to modify the P-Tag or adds the expected P-Tag (which can be zero) when the
peer PE requires the ingress to modify the P-Tag, then adds the PW label and public tunnel
encapsulation, and forwards the traffic through the PW.
• For traffic received from the PW, if the AC access mode (configured by the xconnect vsi command)
is VLAN, the PE modifies or keeps the P-Tag and forwards the traffic through the AC. If the AC
access mode is Ethernet, the PE removes the P-Tag and forwards the traffic through the AC.
Examples
# Configure the PW type as Ethernet.
<Sysname> system-view
[Sysname] pw-class pw100
[Sysname-pw-pw100] pw-type ethernet
Related commands
display l2vpn pw-class
pwsignaling
Use pwsignaling to specify a PW signaling protocol for a VSI and enter the VSI signaling protocol view.