Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 110)

86 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
53-1003031-02
MPLS over virtual Ethernet interfaces
1
NOTE
Multi-port static ARP configuration in not supported for MPLS uplinks.
Configuration considerations before enabling MPLS
on a VE interface
Before enabling MPLS on a VE interface, consider the configuration notes in this section.
• The user must create a VE vid virtual interface id. The virtual interface id is a decimal number
that represents an already configured VE interface. For more information on enabling MPLS on
a VE interface, refer to
“Configuring MPLS on a VE interface” .
• At least one IP address must be configured over a VE interface.
• The user can enable MPLS on two or more tags on the same port.
• In the output of the show vlan command, MPLS packets that are received on an MPLS enabled
VE interface are displayed in the Bytes received field.
In order to support configuration of MPLS uplinks and layer 2 VPN endpoints on the same physical
port, consider the following:
• When an untagged or tagged Layer 2 VPN endpoint is configured and the port belongs to a
MPLS VE enabled default VLAN, the configuration is rejected. The following error message is
displayed.
Brocade(config-mpls-vll-test)# untagged ethernet 4/3
Error - Cannot configure VLL endpoint on port 4/3 since it belongs to the MPLS
VE enabled default VLAN
• When an untagged or tagged Layer 2 VPN endpoint is deleted and the port is returned to the
default VLAN, when an MPLS VE exists on the default VLAN, the port automatically converts to
an MPLS uplink.
MPLS enabled interface
When enabling MPLS on a VE interface, consider the following.
• The user cannot delete a VE interface while MPLS is enabled on it. The user must first remove
MPLS from the interface configuration. The following error message is displayed.
Brocade(config)# no interface ve 20
Error - VE 20 has MPLS enabled
• The user cannot delete a VLAN associated with a VE when MPLS is enabled on that VE. The
user must first disable MPLS from the VE interface. The following error message is displayed.
Brocade(config)# no vlan 20
Error - vlan can't be deleted as MPLS is enabled on associated VE interface