Configuring MPLS

MPLS has the following configuration constraints:

• IP flow redirection—IP flow redirection commands and MPLS are mutually exclusive functions. Both functions cannot be enabled simultaneously.
• IGMP snooping—OSPF and LDP session establishment require the switch to receive and process IP multicast frames. Therefore, IGMP snooping must be enabled to support MPLS.
• VPLS—VPLS requires that IGMP snooping be disabled on customer-facing VLANs.