Solved

Cisco Switch Fabric Module - General Questions

Posted on 2008-06-25
4
1,213 Views
Last Modified: 2008-11-10
What is the prupose of the Cisco Switch Fabric Modules ?

Is it purely to provide greater bandwidth/backplane than the default maximum provided by the installed Supervisor module ?

I am looking at purchasing 7600 ranger routers and 6500 range swicthes, and I need to know if I will require any of these modules.

TIA
0
Comment
Question by:ccfcfc
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 12

Expert Comment

by:jjmartineziii
ID: 21865355
I might be wrong but if you get the 720G Supervisor, the regular switch modules wont go as fast as the fabric enabled ones.
0
 
LVL 32

Expert Comment

by:harbor235
ID: 21865379

In the 7600/6500 series platform they are intergrated into the supervisor cards if you are using the SUP720 and its variants. If you are using SUPIIs than you need the SFM to get the full 256Gbps perfromance.

Wht SUP are youo planning on using?

harbor235 ;}
0
 

Author Comment

by:ccfcfc
ID: 21865615
Thanks for the replies.

I am still looking at the capabilties of the differeing Supervisor modules. It's my understanding from what I have been able to find out so far the one of the differences between Supervisor modules is that, regardless of the maximum backplane of the switch/router, the Supervisor has it's own maximum which limits how much of the switch/router backplane can actually be used. If you go for a cheaper Supervisor with a smaller maximum backplane, you could then add a SFM at a later date if you needed to increase the backplane capacity. Would that be correct ?

I realise there will be other differences between Supervisor modules, so I have another thread open asking for information on that to aid us with our choice, as this is our first experience with this paricular hardware.

Thanks.
0
 
LVL 32

Accepted Solution

by:
harbor235 earned 500 total points
ID: 21865913

That is not correct on the newer supervisors, the SFM is intergrated, so you you would need to purchase a new Supervisor. With older supervisors like the SUPII that would be correct.

Regardless how much bandwidth the SUP has it's job is to perfrom the layer 2 - 4 services required of the traffic passing through the linecards. The SUP does not need high bandwidth, traffic does not pass through it (exception is the built in interfaces), its perfroming route lookups, QOS, ACLs, etc ....
All this info can be downloaded to the cards via DCEF so there is no interaction at all with the SUP to move traffic after the intial download of the FIB. Also the SUP is there for management purposes.

harbor235 ;}
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Problem Description:   Couple of months ago we upgraded the ADSL line at our branch office from Home to Business line. The purpose of transforming the service to have static public IP’s. We were in need for public IP’s to publish our web resour…
Arrow Electronics was searching for a KVM  (Keyboard/Video/Mouse) switch that could display on one single monitor the current status of all units being tested on the rack.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses
Course of the Month7 days, 17 hours left to enroll

617 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question