SLX-OS allows exchanging IPv6 prefixes only over an IPv6 BGP session. Enabling multi- protocol BGP allows exchanging IPv6 prefixes over IPv4 BGP sessions also. This reduces the need for additional BGP IPv6 sessions on SLX-OS, as a single IPv4 BGP session can transport both IPv4 and IPv6 prefixes simultaneously.
This feature is available for both default and user defined VRFs.