Global Routing Operations (grow) -------------------------------- Charter Last Modified: 2011-08-18 Current Status: Active Working Group Chair(s): Peter Schoenmaker Christopher Morrow Operations and Management Area Director(s): Dan Romascanu Ronald Bonica Operations and Management Area Advisor: Ronald Bonica Technical Advisor(s): Bill Fenner Vijay Gill Mailing Lists: General Discussion:grow@ietf.org To Subscribe: https://www.ietf.org/mailman/listinfo/grow Archive: http://www.ietf.org/mail-archive/web/grow Description of Working Group: The Border Gateway Protocol (BGP) is fundamental to the operation of the Internet. In recent years, occurrences of BGP related operational issues have increased, and while overall understanding of the default-free routing system has improved, there is still a long and growing list of concerns. Among these are routing table growth rates, interaction of interior and exterior routing protocols, dynamic properties of the routing system, and the effects of routing policy on both the size and dynamic nature of the routing table. In addition, new and innovative uses of BGP, such as the use of BGP as a signaling protocol for some types of Virtual Private Networks, have created new and unexpected operational issues. The purpose of the GROW is to consider the operational problems associated with the IPv4 and IPv6 global routing systems, including but not limited to routing table growth, the effects of the interactions between interior and exterior routing protocols, and the effect of address allocation policies and practices on the global routing system. Finally, where appropriate, the GROW documents the operational aspects of measurement, policy, security, and VPN infrastructures. GROW will also advise various working groups, including the IDR and RPSEC working groups, with respect to whether it is addressing the relevant operational needs, and where appropriate, suggest course corrections. Finally, operational requirements developed in GROW can also be used by any new working group charged with standardizing a next generation inter-domain routing protocol. GOALS: ----- (i). Evaluate and develop various methodologies of controlling policy information in order to reduce the effect of prefix sub-aggregates beyond the necessary diameter, so as to reduce the Network Layer Reachability Information (or NLRI; see e.g.,draft-ietf-idr-bgp4-23.txt) load on network infrastructure. (ii). Document and suggest operational solutions to problematic aspects of the currently deployed routing system. Examples include instability caused by oscillation of MULTI_EXIT_DISC (or MED; see RFC 3345) values. (iii). Analyze aspects of supporting new applications, including extending existing routing protocols and creating new ones. This includes risk, interference and application fit. (iv). Determine the effect of IGP extensions on the stability of the Internet routing system. (v). Document the operational aspects of securing the Internet routing system, and provide recommendations to other WGs. Some Relevant References: ------------------------- http://www.routeviews.org http://bgp.potaroo.net http://www.cidr-report.org http://www.pch.net/routing/BGP_table_size.ital http://moat.nlanr.net/AS http://www.apnic.net/stats/bgp http://www.merit.edu/ipma http://www.caida.org/projects/routing/atoms Goals and Milestones: Done Publish Risk, Interference and Fit (RIFT) document as WG I-D Done Publish Embedding Globally ...Considered Harmful as WG I-D Done Publish MED Considerations Draft as WG I-D Done Publish Collection Communities as WG I-D Done Submit Collection Communities to IESG for BCP Done Submit Embedding Globally ...Considered Harmful to IESG for Info Done Submit MED Considerations to IESG for Info Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Jul 2005 Aug 2011 MRT routing information export format May 2009 Jun 2011 FIB Suppression with Virtual Aggregation Oct 2009 Jun 2011 Auto-Configuration in Virtual Aggregation Mar 2010 Sep 2011 Simple Virtual Aggregation (S-VA) Jun 2010 Sep 2011 Distribution of diverse BGP paths. Sep 2010 Aug 2011 Multi-threaded Routing Toolkit (MRT) Border Gateway Protocol (BGP) routing information export format with geo-location extensions Nov 2010 Jul 2011 Unique Per-Node Origin ASNs for Globally Anycasted Services Mar 2011 Sep 2011 Time to Remove Filters for Previously Unallocated IPv4 /8s Apr 2011 Jun 2011 Operational Requirements for Enhanced Error Handling Behaviour in BGP-4 Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC4085BCP Jun 2005 Embedding Globally Routable Internet Addresses Considered Harmful RFC4264 I Dec 2005 BGP Wedgies RFC4384BCP Feb 2006 BGP Communities for Data Collection RFC4451 I Mar 2006 BGP MULTI_EXIT_DISC (MED) Considerations RFC4632BCP Aug 2006 Classless Inter-Domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan RFC4786BCP Dec 2006 Operation of Anycast Services RFC6198 I Apr 2011 Requirements for the Graceful Shutdown of BGP Sessions