Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

6748 Blade Question

Hi all,

When is the additional feature of DFC boards really necessary?

We're trying to trim costs these days. I'm not sure if our data center switches really actually require DFC. Is there a problem with over-subscription without the DFC boards on a 6748 blade?

We currently have a few 6509 chassis with 6748 blades installe. We haven't really experienced any problems.

Thanks,

Mike

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Blue

Re: 6748 Blade Question

Mike

Have a look at this Q&A which has a specific section on what benefits the DFC's give you.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00809a7673.shtml

Oversubscription is something slightly different. The 6748 blade is oversubscribed but not by much ie. it has 48 10/100/1000 ports with 2 x 20Gbps connection to the switch fabric.

Overall, if you are not experiencing problems without DFC then no need to use DFC. We had a data centre where most of the servers were not using DFC enabled line cards because they didn't need it.

Jon

3 REPLIES
Hall of Fame Super Blue

Re: 6748 Blade Question

Mike

Have a look at this Q&A which has a specific section on what benefits the DFC's give you.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00809a7673.shtml

Oversubscription is something slightly different. The 6748 blade is oversubscribed but not by much ie. it has 48 10/100/1000 ports with 2 x 20Gbps connection to the switch fabric.

Overall, if you are not experiencing problems without DFC then no need to use DFC. We had a data centre where most of the servers were not using DFC enabled line cards because they didn't need it.

Jon

New Member

Re: 6748 Blade Question

Thanks Jon,

Your feedback is alway appreciated.

-Mike

Hall of Fame Super Blue

Re: 6748 Blade Question

Mike

Thanks for the kind comments and rating.

Jon

421
Views
0
Helpful
3
Replies