KB.15.15

3. Because the OS file is large, you can increase the speed of the download by changing the

switch console and terminal emulator baud rates to a high speed. For example:

a. Change the switch baud rate to 115,200 Bps.

= sp 115200

b. Change the terminal emulator baud rate to match the switch speed:

i. In HyperTerminal, select CallDisconnect.

ii. Select FileProperties.

iii. Click on Configure.

iv. Change the baud rate to 115200.

v. Click on [OK], then in the next window, click on [OK] again.

vi. Select CallConnect.

vii. Press [Enter] one or more times to display the = prompt.

4. Start the Console Download utility by entering do at the =prompt and pressing [Enter]:

= do

5. You then see this prompt:

You have invoked the console download utility.

Do you wish to continue? (Y/N)>_

6. At the above prompt:

a. Enter y (for Yes)

b. Select TransferFile in HyperTerminal.

c. Enter the appropriate filename and path for the OS image.

d. Select the Xmodem protocol (and not the 1k Xmodem protocol.)

e. Click on [Send].

If you are using HyperTerminal, you will see a screen similar to the following to indicate that

the download is in progress:

Figure 236 Example of Xmodem download in progress

When the download completes, the switch reboots from primary flash using the OS image

you downloaded in the preceding steps, plus the most recent startup-config file.

DNS resolver

The domain name system (DNS) resolver is designed for use in local network domains, where it

enables the use of a host name or fully qualified domain name with DNS-compatible switch CLI

commands. (At software release K.13.01, the DNS-compatible commands includeping and

traceroute.)

Beginning with software release K.13.01, DNS operation supports both IPv4 and IPv6 DNS

resolution and multiple, prioritized DNS servers.

444 Troubleshooting