# References

For more information about virtual routers, VPNs, or VRFs, consult the following resources:

- JunosE Release Notes, Appendix A, System Maximums—Refer to the Release Notes corresponding to your software release for information about maximum values.
- JunosE BGP and MPLS Configuration Guide
- RFC 2917—A Core MPLS IP Architecture (September 2000)
- RFC 4364—BGP/MPLS IP Virtual Private Networks (VPNs) (February 2006)