Short report from IETF 72 in Dublin 2008

Transcription

1 Short report from IETF 72 in Dublin 2008 ITG-FG Next Generation Networks 20. Sitzung am T-Systems Thomas Martin Knoll Chemnitz University of Technology Communication Networks Phone knoll@etit.tu-chemnitz.de

2 Outline 1. Dates and Location 2. Sessions -> Topics of Discussion 3. 2 / 14

3 Dates and Location Sessions/Topics Dates and Location Dates Host: 72nd IETF meeting 27 July - 1 August 2008 Sunday, July 27 registration + tutes (newcomer / routing) Monday, July sessions Tuesday, July sessions + Guinness social Wednesday, July sessions + IPv6 Plenary Thursday, July sessions + Plenary Friday, August sessions (RRG until 17.00) Location Citywest - Dublin [CW] 3 / 14

4 Dates and Location Sessions/Topics Sessions Topics of Discussion Sunday, July 27 registration + tutes Cisco Routing tute all basics covered and some hot points addressed (IPv4 address usage, aggregation, typical peerings, RIR registry, Internet Routing Registry (IRR), Multihoming, AS4, etc.) AS 3211 AS 3320 [CIDR] Newcomer tute general procedure + how to write a draft RFC 3552 for the Security Considerations RFC editor RFC 5226 Guidelines for writing IANA considerations future Registries must be requested in XML style which vs. that distinction IANA uses smilint for MIB definition checking 4 / 14

5 Dates and Location Sessions/Topics Sessions Topics of Discussion Monday, July sessions Softwire WG (Ward, Durand) IPv4 IPv6 IPv6 migration, carrier-grade NAT, meshed softwires, load balancing etc. MPLS WG (Swallow, Andersson) MPLS / GMPLS security, Renaming EXP, p2mp, proxy LSP ping, changing overbooking factors with MPLS-TE, entropy lables %, RSVP-TE p2mp L3VPN WG (Eubanks, McPherson) L3 VPN BGP Accept_Own attribute well known attribute?, Route Reflectors now reflect to wrong recipients? TSVWG (Polk, Eggert, Westerlund) transport area Voice DSCP, IPSec for RSVP / RSVP in L3 VPNs, IANA port allocation, DTLS for SCTP SIDR WG (Huston, Murphy) secure IDR debate on ROA format, RPKI manifest, AS authorization for prefix origination automatic prefix filtering -> RIR (don t peer, if not registerred) concern: ROA vs. RPSL ( Using RPKI secured data for existing routing policy tools ) 5 / 14

6 Dates and Location Sessions/Topics Sessions Topics of Discussion Tuesday, July sessions + Guinness social RTG WG (Zinin, Scudder, Atlas) not fitting elsewhere only Alex was there IP FRR the fastest IETF draft ever (Ward), IP Multicast Fast Reroute Framework, IDR WG (Hares, Rekhter) inter-domain routing presented draft-knoll-idr-qos-attribute-02 AS4, BGP Well Known communities, draft-francis-idr-intra-va-00, lisp-alt approach draft-fuller-lisp-alt-02.txt LISP Alternative Topology (LISP+ALT) Cisco draft = D. Farinacci, V. Fuller, D. Meyer alternative, logical topology for managing Endpoint Identifier to Routing Locator mappings using the Locator/ID Separation Protocol. The logical network is built as an overlay on the public Internet using existing technologies and tools, specifically the Border Gateway Protocol and the Generic Routing Encapsulation. LISP+ALT allow for an efficient mapping system 6 / 14

7 Dates and Location Sessions/Topics Sessions Topics of Discussion Wednesday, July sessions + IPv6 Plenary rtgarea Routing Area Open Meeting IDR -> no new documents accepted L1VPN -> 4 RFCs -> close the wg? -> no, OSPF 3 L3VPN -> BGP attribute -> discussed in IDR -> suggested to be passed into L3VPN, but will receive last call in IDR as well MPLS -> George Swallow -> LDP without specific IP addresses, dynamic bandwidth allocation, BCP, IP option process MPLS-TP -> re-charter MPLS to incorporate TP Mature -00 documents brought in -> minor changes -> requirements disc. PCE -> re-chartered to p2mp applications -> multi-layer MPLS -> applicability for VPNs PIM -> 1 draft published since last IETF -> no new drafts adopted -> multicast in LISP environment RPSEC asleep -> remaining drafts to rtgwg? RPsec will be closed RTGWG -> IPFRR SIDR -> one new document accepted -> deployment discussion VRRP -> to be closed? -> hasn t met for a while and documents are progr. Routing Research Group (RRG) -> not about LISP -> own BOF MPLS-TP in MPLS, PWE, L2VPN, CCAMP New BGP OSPFv3 ext. community attribute -> rekhter-v6-ext-community-02 8 / 14

8 Dates and Location Sessions/Topics Sessions Topics of Discussion Wednesday, July sessions + IPv6 Plenary IPv6 deployment - no MPLS-TE for IPv6 - no extension filtering in HW - NAT-PT temperamental - No 6to4/Teredo in HW - Load-balancing not mature showed remote box for printer and audio server -> link local IPv6 addresses avoid plain (hex) IPv6 addresses! do parallel DNSes and pick the first reply and reset the other parallel sessions 9 / 14

9 Dates and Location Sessions/Topics Sessions Topics of Discussion Thursday, July sessions + Plenary PCE WG (Vasseur, Farrel) path computation elements Inter-layer Framework and Requirements Inter-layer PCEP extensions PCE application to GMPLS P2MP PCEP Applicability Requirements PCE sort of hi-jacked the OSPF LSAs and those guys requested not to put any more information into the LSAs (A. F.) Applicability of PCE to VPNs Discovering PCEs in other ASes BGP/MPLS VPNs -> discover PCEs in neighbouring ASes selectively and automatically GROW (Schoenmaker, Morrow) Global Routing Operations WG BGP graceful shutdown -> local pref + inbound filter new community GSHUT Update Routing System Stability RT Stability Metric LISP/ALT deployment status 10 / 14

10 Dates and Location Sessions/Topics Sessions Topics of Discussion Friday, August sessions (RRG until 17.00) RRG (Zhang, Li) Routing Research Group (IRTF) Multipath Transport, Resource Pooling, and implications for Routing Split Identity: Routing Scalability: Separation versus Elimination LISP for Multicast Environments 11 / 14

11 Dates and Location Sessions/Topics Good organization, but rather expensive and isolated location A must for own contributions Good chance to talk and observe Mind submission deadlines and strict timing Relaxed outfit, good working climate and open/frank discussions 12 / 14

12 Dates and Location Sessions/Topics nice to know 1183 participants 48 countries 1G backbone 60 APs (a/b/g/n) Max 792 clients 5Ghz > 2,4 GHz Ca. 1M$ 13 / 14

13 Thank you for your attention.

14 Sources [CIDR] CIDR Report / Geoff Huston, online available [CW] Citwest Hotel, Dublin, [I-D.knoll-idr-qos-attribute] Knoll, T., "BGP Extended Community Attribute for QoS Marking", draft-knollidr-qos-attribute-02 (work in progress), July 2008.