1 / 5

LISP Traffic Engineering

LISP Traffic Engineering. draft-farinacci-lisp-te- 01 Dino Farinacci Cisco Systems Parantap Lahiri Microsoft Corporation Michael Kowal Cisco Systems. Problem Statement. LISP provides data-path stretch = 1 When encapsulating from ITR to ETR What if stretch = 1 path is congested?

nubia
Download Presentation

LISP Traffic Engineering

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LISP Traffic Engineering draft-farinacci-lisp-te-01 Dino Farinacci Cisco Systems Parantap Lahiri Microsoft Corporation Michael Kowal Cisco Systems

  2. Problem Statement • LISP provides data-path stretch = 1 • When encapsulating from ITR to ETR • What if stretch = 1 path is congested? • Could we hair-pin as a feature? • To find a better performing data path

  3. ETR ITR Re-Encapsulation Points A D X Y B C RTR ‘Y’ decaps packet and performs lookup on dest EID for ELP (if not cached) RTR ‘Y’ encaps packet to ETR EID-prefix: 2001:db8:2::/48 Locator-set: (x,y,ETR): priority 1, weight 100 EID-prefix: 2001:db8:2::/48 Locator-set: (x,y,ETR): priority 1, weight 100 RTR ‘X’ decaps packet and performs lookup on dest EID for ELP (if not cached) EID-prefix: 2001:db8:2::/48 Locator-set: (x,y,ETR): priority 1, weight 100 ELPs provisioned via Programmable Interface ITR encapsulates to RLOC ‘X’ EID RLOCa.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 RLOCa.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 RLOCa.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 MS/MR RTR RTR § LISP encapsulation

  4. ETR ITR Recursion X E F Y B D A C EID-prefix: RTR-Y Locator-set: (e,f,y): priority 1, weight 100 (y) : priority 2, weight 100 EID-prefix: ETR Locator-set: (x,e,f,y,ETR): priority 1, weight 100 (x,y,ETR): priority 2, weight 100 RTR ‘X’ performs lookup on ETR ‘ETR’ L-bit setting for ‘Y’ determines: re-encap or lookup RTR RTR RTR RTR § LISP encapsulation

  5. Service Chaining dEID sEID Service Chain described by ELP RTR ITR ETR RTR Scrubber Service described by EID in mapping database Honey-pot Deep Packet Inspection

More Related