Multilevel trill is is
Download
1 / 5

Multilevel TRILL-IS-IS - PowerPoint PPT Presentation


  • 87 Views
  • Uploaded on

Multilevel TRILL-IS-IS. Radia Perlman Radia.perlman@intel.com. What might stop scaling?. 16-bit nickname MAC learning table Broadcast traffic IS-IS computation. Multilevel IS-IS. IS-IS has the capability of multilevels What issues might TRILL introduce? nicknames. Nicknames.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Multilevel TRILL-IS-IS' - cleary


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Multilevel trill is is

Multilevel TRILL-IS-IS

Radia Perlman

Radia.perlman@intel.com


What might stop scaling
What might stop scaling?

  • 16-bit nickname

  • MAC learning table

  • Broadcast traffic

  • IS-IS computation


Multilevel is is
Multilevel IS-IS

  • IS-IS has the capability of multilevels

  • What issues might TRILL introduce?

    • nicknames


Nicknames
Nicknames

  • Must be unique

  • R1 only sees LSPs at R1’s level

  • So

    • Need to allocate a piece of nickname space for each area (including level 2 “area”)

    • Need to make sure Rbridges in an area know which nicknames they can choose

    • Need to make sure Rbridges can route to foreign nicknames


Some ideas
Some ideas

  • Have highest priority border Rbridge R1 advertise area’s nickname range within area

  • But, this would be incompatible

  • So…have R1 claim ownership of all nicknames not allowed in the area

  • Also, have R1 advertise, in layer 2, the reachable nicknames in its area