LISP. Migration zu IPv6 mit LISP. Gerd Pflueger Version Feb. 2013

Transcription

1 Version Feb LISP Migration zu IP mit LISP Gerd Pflueger 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 1

2 2011 Cisco and/or its affiliates. All rights reserved. Cisco Public 2

3 2011 Cisco and/or its affiliates. All rights reserved. Cisco Public 3

4 Gerd at the very present time 2011 Cisco and/or its affiliates. All rights reserved. Cisco Public 4

5 Version Feb LISP Migration zu IP mit LISP Lukas Krattiger 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 5

6 LISP A Solution to Real World Problems LISP originally conceived to address Internet Scaling Many customers have been requesting Cisco to look into this issue. routing scalability is the most important problem facing the Internet today and must be solved. Attendees of IAB workshop in October 2006 (written in RFC4984) Without LISP 2012 Cisco and/or its affiliates. All rights reserved. Cisco Public 6

7 Locator/ID split enables other (more important) benefits Today s Internet Behavior x.y.z.1 Internet Device IPv4 or IP address represents identity and location w.z.y.9 When the device moves, it gets a new IPv4 or IP address for its new identity and location LISP Behavior x.y.z.1 Device IPv4 or IP address represents identity only a.b.c.1 Internet e.f.g.7 x.y.z.1 When the device moves, keeps its IPv4 or IP address. It has the same identity Only the location changes 2012 Cisco and/or its affiliates. All rights reserved. Cisco Public 7

8 LISP A Level of Indirection for IP Addressing Creates a Level of indirection by using two namespaces EID and RLOC EID (Endpoint Identifier) is the host IP address RLOC (Routing Locator) is the infrastructure IP address of the LISP router Mapping Database (M-DB) is the distributed database and policy repository Non-LISP EID Space PTR Prefix w.x.y.1 x.y.w.2 z.q.r.5 z.q.r.5 Next-hop e.f.g.h e.f.g.h e.f.g.h e.f.g.h ITR MS ETR EID a.a.a.0/24 b.b.b.0/24 c.c.c.0/24 d.d.0.0/16 RLOC w.x.y.1 x.y.w.2 z.q.r.5 z.q.r.5 EID RLOC a.a.a.0/24 w.x.y.1 b.b.b.0/24 x.y.w.2 c.c.c.0/24 z.q.r.5 d.d.0.0/16 z.q.r.5 EID RLOC a.a.a.0/24 w.x.y.1 b.b.b.0/24 x.y.w.2 c.c.c.0/24 z.q.r.5 d.d.0.0/16 z.q.r.5 Map DB RLOC Space Network-based solution No host changes Minimal configuration No DNS changes Address Family agnostic Incrementally deployable (support LISP and non-lisp) Support for mobility ETR EID Space 2012 Cisco and/or its affiliates. All rights reserved. Cisco Public 8

9 LISP IPv4 EID/IPv4 RLOC Header Example IPv4 Outer Header: Router supplies RLOCs UDP LISP header IPv4 Inner Header: Host supplies EIDs 2012 Cisco and/or its affiliates. All rights reserved. Cisco Public 9

10 LISP Encapsulation Combinations IPv4 and IP Supported IPv4 Outer Header UDP LISP IPv4 Inner Header IPv4/IPv4 IPv4 Outer Header UDP LISP IP Inner Header IPv4/IP IP Outer Header UDP LISP IP Inner Header IP/IP IP Outer Header UDP LISP IPv4 Inner Header IP/IPv Cisco and/or its affiliates. All rights reserved. Cisco Public 10

11 LISP Efficient Multihoming Part of the LISP Solution Space IPv4 Core 1. Multihoming 2. IP Transition 3. Virtualization/VPN 4. Mobility IPv4 Network IPv4 Core v4 LISP is an Architecture BRKRST Cisco and/or its affiliates. All rights reserved. Cisco Public

12 LISP IP Transition Support Part of the LISP Solution Space IP Network IP Core 1. Multihoming 2. IP Transition 3. Virtualization/VPN 4. Mobility IPv4 Network IPv4 Core v4 LISP is an Architecture BRKRST Cisco and/or its affiliates. All rights reserved. Cisco Public

13 LISP Virtualization/VPN Support Part of the LISP Solution Space IP Network IP Core 1. Multihoming 2. IP Transition 3. Virtualization/VPN 4. Mobility IPv4 Network IPv4 Core v4 LISP is an Architecture BRKRST Cisco and/or its affiliates. All rights reserved. Cisco Public

14 LISP Host Mobility Support Part of the LISP Solution Space IP Network IP Core 1. Multihoming 2. IP Transition 3. Virtualization/VPN 4. Mobility IPv4 Network IPv4 Core v4 LISP is an Architecture BRKRST Cisco and/or its affiliates. All rights reserved. Cisco Public

15 Needs: Rapid IP Deployment Minimal Infrastructure disruption LISP Solution: Connecting IP Islands IPv4 Enterprise Core island IPv4 Internet v4 island IPv4 Enterprise Core LISP encapsulation is Address Family agnostic Benefits: IP interconnected over IPv4 core IPv4 interconnected over IP core IP Service Support IPv4 Core service v4 IPv4 Internet P IP Internet Accelerated IP adoption Minimal added configurations No core network changes Can be used as a transitional or permanent solution IP Access Support site IP Internet P P P v4 IPv4 access & Internet home Network home Network. home Network 2012 Cisco and/or its affiliates. All rights reserved. Cisco Public 15

16 LISP A 2010::3 RA3 2010::/48 EID 2010::2 2010::1 RA /24 Lo /30 RLOC.2 RA /30 RLOC RI-MS/MR.1 RC / / /30 RB1- RLOC EID 2020::/ ::1 2020::2 RB3 LISP B RA2# sh run ip ip route 0::/0 Null0 interface Ethernet2/2 ip address 2010::0002/48 RA2# sh run lisp ip lisp itr-etr ip lisp itr-etr ip lisp map-cache 2020::0002/ priority 1 weight Cisco and/or its affiliates. All rights reserved. Cisco Public 16 16

17 With real implementation experience! With real deployment experience! With real customer engagement! & Cisco and/or its affiliates. All rights reserved. Cisco Public 17

18 LISP Status LISP Deployments - International LISP Beta Network LISP Community Operated: More than 5 Years operational More than ~300 Sites, 33 countries Interoperable LISP implementations: Cisco IOS (ISR, ISRG2, 7200) and IOS-XE (ASR1K) Cisco IOS-XR (CRS3, ASR9K (beta)) Cisco NX-OS (N7K, C200) Open Source FreeBSD: OpenLISP Linux: Aless, LISPmob, OpenWrt Plus a few others ;-) Linux: LISPmob Android (Gingerbread) Furukawa Network Solution Corporation FITELnet-G21 and more BRKRST Cisco and/or its affiliates. All rights reserved. Cisco Public

19 LISP Status LISP Software Available Releases Cisco Releases NX-OS since December 2009 Nexus 7000, UCS C200 IOS since December 2009 ISR, ISRG2, 7200 IOS-XE since March 2010 ASR1K IOS-XR since March 2012 CRS3 Coming soon ASR9K (4/2013), Catalyst 6500 (5/2013), and others Other Releases Furukawa Network Solutions Corp FreeBSD :: Open LISP Linux :: Aless, LISPmob, OpenWrt (coming soon ) Android :: Gingerbread (coming soon ) Other vendors Check the site! Cisco LISP Releases: Other LISP Releases: BRKRST Cisco and/or its affiliates. All rights reserved. Cisco Public

20 RFC The Locator/ID Separation Protocol (LISP) RFC The Locator/ID Separation Protocol (LISP) for Multicast Environments RFC Interworking between Locator/ID Separation Protocol (LISP) and Non-LISP Sites RFC Locator/ID Separation Protocol (LISP) Map-Server Interface RFC Locator/ID Separation Protocol (LISP) Map-Versioning RFC The Locator/ID Separation Protocol Internet Groper (LIG) RFC Locator/ID Separation Protocol Alternative Logical Topology (LISP+ALT) 2012 Cisco and/or its affiliates. All rights reserved. Cisco Public 20

21 Thank you.