Configuring MPLS for a LAG Bundle

To configure MPLS for a LAG bundle, perform the following steps:

1. Specify the LAG bundle.

   host1(config)#interface lag bundleBoston

2. Create an MPLS interface.

   host1(config-if)#mpls

interface lag

• Use to create an IEEE 802.3ad LAG interface, also known as a LAG bundle, or a subinterface for the LAG bundle.
• Examples

  host1(config)#interface lag boston

  host1(config)#interface lag boston.2

  host1(config)#interface lag boston.2.1

• Use the no version to delete the LAG bundle.
• See interface lag.

lacp

• Use to configure whether an Ethernet link in a LAG bundle participates actively or passively in the LACP.
• Use the active keyword to indicate that the Ethernet link participates in the protocol regardless of whether its Partner member link is set to active or passive LACP PDU participation.
• Use the passive keyword to indicate that the Ethernet link to transmit LACP PDUs only when it receives LACP PDUs from its Partner member link.
• By default, Ethernet links in a LAG bundle do not send LACP PDUs.
• Example

  host1(config-if)#lacp active

• Use the no version to restore the default behavior.
• See lacp.

lacp port-priority

• Use to set the priority for an Ethernet link in a LAG bundle.
• The member with the lowest value has the highest priority, and is selected to join the LAG bundle first.
• Valid values are in the range 0–65535.
• Example

  host1(config-if)#lacp port-priority 100

• Use the no version to restore the default value of 32768.
• See lacp port-priority.

member-interface

• Use to add a Fast Ethernet interface or Gigabit Ethernet interface, also known as a bundle member, to a LAG bundle.
• Example

  host1(config-if)#member-interface fastEthernet 4/0

• Use the no version to remove the specified Ethernet link from the bundle.
• See member-interface.

minimum-links

• Use to configure the minimum number of member links in the link aggregation group (LAG) bundle for the LAG interface to be considered up.
• Example

  host1(config-if)#minimum—links 2

• Use the no version to reset the minimum number of member links to the default value.
• See minimum-links

mpls

• Use to enable, disable, or delete MPLS on an interface. MPLS is disabled by default.
• Example

  host1(config)#mpls

• Use the no version to halt MPLS on the interface and delete the MPLS interface configuration.
• See mpls.

mtu

• Use to specify the MTU for a LAG bundle.
• Specify a value in the range 64–9188 bytes. The range for FE-8 I/O modules is 64–9042 bytes.
• This command does not work for the Fast Ethernet port on the SRP module.
• Example

  host1(config-if)#mtu 9000

• Use the no version to specify the default, 1518.
• See mtu.

pppoe subinterface lag

• Use to create a PPPoE subinterface on a LAG bundle.
• Example

  host1(config-if)#pppoe subinterface lag boston.1

• Use the no version to remove the PPPoE subinterface from the LAG bundle.
• See pppoe subinterface.

virtual-router

• From Global Configuration mode, use this command to create a virtual router or access the context of a previously created virtual router or a VRF.
• Example

  host1(config)#virtual-router boston

• Use the no version of the command only to delete the VR and return the router to the default VR.
• See virtual-router.

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