Configuring MTU Signaling in RSVP
To configure maximum transmission unit (MTU) signaling in RSVP, you need to configure MPLS to allow IP packets to be fragmented before they are encapsulated in MPLS. You also need to configure MTU signaling in RSVP. For troubleshooting purposes, you can configure MTU signaling alone without enabling packet fragmentation.
The following sections describe how to enable packet fragmentation and MTU signaling in RSVP: