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Download EPUBenable mpls php
When enabled, PHP is requested on all LSPs advertised over that VLAN (Virtual LAN) for which the switch is the egress LSR.
enable mpls php [{vlan} vlan_name | vlan all]Description
Enables penultimate hop popping (PHP) on the specified VLAN.
Syntax Description
| vlan | Enables PHP for one or more specific VLANs. |
| vlan_name | Enables PHP on the specified VLAN. |
| vlan all | Enables PHP for all VLANs that have been added to MPLS (Multiprotocol Label Switching). |
Default
Disabled.
Usage Guidelines
Penultimate hop popping is requested by assigning the Implicit Null Label in an advertised mapping. Extreme's MPLS implementation always performs penultimate hop popping when requested to do so by a peer LSR. When the all VLANs option is selected, PHP is enabled on all configured VLANs that have been added to MPLS.
Note
ExtremeWare always used the Implicit NULL Label in conjunction with routes exported into OSPF (Open Shortest Path First), regardless of the setting of the PHP configuration parameter. This method of operation is not utilized in ExtremeXOS.Example
The following command enables penultimate hop popping (PHP) on the specified VLAN:
enable mpls php vlan vlan1
History
This command was first available in ExtremeXOS 11.6.
Platform Availability
This command is available only on the platforms that support MPLS as described in the ExtremeXOS 22.2 Feature License Requirements document.