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 MSM/MM 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.