Reference document

Org
IETF
Pubnum
RFC 1793
Date
1995
Version
Title
Extensions to OSPF to support demand circuits

Applicability

This memo defines enhancements to the OSPF protocol that allow efficient operation over demand circuits. Demand circuits are network segments whose costs vary with usage; charges can be based both on connect time and on bytes/packets transmitted. Examples of demand circuits include ISDN circuits, X.25 SVCs, and dial-up lines. The periodic nature of OSPF routing traffic has until now required a demand circuit’s underlying data-link connection to be constantly open, resulting in unwanted usage charges. With the modifications described herein, OSPF Hellos and the refresh of OSPF routing information are suppressed on demand circuits, allowing the underlying data-link connections to be closed when not carrying application traffic.

Responsible Party

Name
NCIA/NSII

Status

URI
https://www.ietf.org/rfc/rfc1793.txt

History

Flag Date RFC Version
added 1998-11-10 0.1
changed 2005-09-16 0.7
changed 2017-01-14 9-19 10.0
UUID
fb3d5fe4-095b-4609-91de-5d850fa10668