Will no cef cause slow file transfer?

If I don't have CEF enable on a switch could that be the cause of slow file transfer?

The switch is not under much load now but would transferring a 1gb file on a 4000 series switch be slowed down by not using CEF?

1gb file takes about 4 or 5 minutes to transfer over a gb link.

ftp and SMB both slow.
Dragon0x40Asked:
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ddiazpCommented:
Most probably not.

You might want to double check FTP synchronous/asynchronous transfers or FTP fixup on whatever firewalls the FTP transfer goes through.
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SouljaCommented:
Yes, the whole purpose of CEF it to speed up data transfer on switches and routers. Did you enter the ip def distributed command yet?
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Dragon0x40Author Commented:
what is strange though is it only happens at one of the locations and all the switches are configured the same. At least the ones that I have checked.

I have to get approval to make any changes to the configs
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SouljaCommented:
What kind of switches are we talking about?
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Dragon0x40Author Commented:
Most of our switches are underutilized so how can I convince my coworkers and boss that CEF needs to be turned on?
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ddiazpCommented:
What transfer speeds do you get and what do you think you should get? Does the transfer occur on your domain? are we talking about 100mbps or 1gbps links? what size is the file and how long it takes?

CEF wont solve your problem, the botleneck doesnt seem to be any of the switches. how many hops away is the client from the server?
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ddiazpCommented:
You should still enable CEF on all your switches nonetheless. CEF comes on by default on cisco switches nowadays. You probably wont see noticeable difference in your network but it will be more efficient,
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