Cisco ios tftp download slows to a crawl

I notice this for big files, not so much with smaller files. I tried with my internal hard drive and the same hard drive in a enclosure via esata. The reason for the difference is that there is a lot of additional packet, encryption and handshaking overhead inherent in the SSH2 protocol that FTP doesn't have to worry about.

When your website slows to a crawl or Exchange stops sending internet mail, you have to get things working again. IIS is the communication gateway for most Microsoft servers as well as the primary technology for publishing web sites. Learning to manage it effectively means you can keep your systems running smoothly and go home on time. The limits on rate will not be because of the router.

TFTP on Cisco routers has always been slow in my experience. But now there's the slow way, transferring via X modem and there's the fast way, copying via an IP address. And then you accidentally download a different operating system and it's an Figure On my flash memory, there are a bunch of configuration files and the current IOS image.

There are bytes available MB so we have plenty of space. When we want to copy something to or from this router, we have to use the copy command:.

I will use the following topology:. Make sure you select the correct directory where you downloaded your IOS image and if you have multiple network interfaces, select the correct interface. The copy command works in both directions. I can copy to and from the TFTP server. When you use the copy flash: tftp: command, it will ask you for the IP address and filename. When you see something between [] brackets , you can just hit the enter button.

For example, since I specified the source name, the router assumes I want to use the same file name for the destination. Here is an example:. Above you can see that I already entered the IP address and filename. Once I hit enter, it will only ask me for the destination filename which I also could have entered. You only need one command to accomplish this:. The alias parameters lets you use a different name for the filename. Copying to or from an FTP server is also no problem, we can do this with the same copy command.

The results show that the MB. Now, adjust the block size value to the maximum allowed value of The results are clearly better. The same file is transferred in two minutes with the new block size value.

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