References; Features; Intra-Area, Interarea, And External Routes - Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual

JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide
For information about modules that support OSPF on the E120 and E320 Broadband
Services Routers:

References

If you need more information about the OSPF protocol, see the following documents:
NOTE: IETF drafts are valid for only 6 months from the date of issuance. They must
be considered works in progress. Please refer to the IETF Web site at
http://www.ietf.org for the latest drafts.
For information about the OSPF protocol working group, see
http://www.ietf.org/html.charters/ospf-charter.html.

Features

The following sections provide brief descriptions of key OSPF features supported in
our implementation of OSPF.

Intra-area, Interarea, and External Routes

You can split up an OSPF AS into areas. Doing this reduces the size of the link-state
database (LSDB). Each OSPF area runs as a separate network and maintains its own
246
References
See ERX Module Guide, Table 1, Module Combinations for detailed module
specifications.
See ERX Module Guide, Appendix A, Module Protocol Support for information about
the modules that support OSPF.
See E120 and E320 Module Guide, Table 1, Modules and IOAs for detailed module
specifications.
See E120 and E320 Module Guide, Appendix A, IOA Protocol Support for information
about the modules that support OSPF.
JUNOSe Release Notes, Appendix A, System Maximums See the Release Notes
corresponding to your software release for information about maximum values.
OSPFv3 Graceful Restart draft-ietf-ospf-ospfv3-graceful-restart-04.txt (November
2006 expiration)
RFC 2328 OSPF Version 2 (April 1998)
RFC 2370 The OSPF Opaque LSA Option (July 1998)
RFC 2740 OSPF for IPv6
RFC 3623 Graceful OSPF Restart (November 2003)
RFC 3630 Traffic Engineering (TE) Extensions to OSPF Version 2 (September
2003)