Network

1) One for every interface.

2) If you're not trunking, one. If you are trunking, as many as you want.

Don

Hello friends

Thanks for the immeadiate Reply.......

See i have one cisco 3660 series router it has got two fast ethernet . In our case we have one primary network(10.128.3.0) and one secondary network (10.128.2.0) in the fast ethernet f0/0. How many networks can be added to one fast ethernet?

Thanks
Noushad

Can you?

Or Should you?

A lot of your decision is largely based on how much aggregate traffic you plan on seeing across these interfaces.

i.e. you could put a lot more low-traffic subinterfaces on a FastE than high-traffic ones.

The fact is you can add a lot more than is practical from a performance standpoint. On the 3660 it allows up to 1400 VLANS, but I would limit it to no more than a dozen per interface in most cases.  


http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_tech_note09186a0080094322.shtml#addtl_idb_limits

Thanks for all your help

 point for Dr.Ip and Pedrow

Thanks
Noushad

A request for deletion was made, but I clearly see where the desire was to award the points.  I am awarding the points.  BTW, we can't split points where each expert would receive less than 20 points each, so I am accepting the first answer of the 2 mentioned.  If you'd like the other expert to receive points as well, I can give you instructions for that.

noushad,
Please go through this area to help you with maintaining your questions:
http://www.cityofangels.com/Experts/Closing.htm

To accept an answer, you go to the header of the comment that helped you and look to the right.  There is a link there called Accept Comment As Answer.  Click it and you will be taken to the grading screen.  Don't forget to assign the appropriate grade.

SpideyMod
Community Support Moderator @Experts Exchange