Sorry I meant I lost the IOS on switch.  My main issues is that I mistakenly set baud rate of 57600 to switch. 

I found out later that I was dealing with speed of three things, Router, tty port, and switch.  However I was only able to change tty port speed to 9600 or 115200.  Hence speed is not match up.

You would use:

clock rate

I think it will be resolution your issue

Or you can use this

!--- Lines omitted for brevity.

line aux 0
 password cisco
 login
 modem InOut
 transport input all
 speed 57600
 flowcontrol hardware

or

modem autoconfigure type usrmodem

Thank's for the help.

@Inactive. Have you found any solution? Please let us know if you found one.

was there any solution to this, i have the same issue,

i have a 2951 router, with 48 etherlink module,

i cannot access the module as its at 57600 baud,

i tried setting console to this speed but does not work.

i connect using

service-module GigabitEthernet2/0 session

thanks

dave

it says i can configure vty133 but it only supports either 9600 or 11500

i have same issue

midnight-cisco2951#service-module GigabitEthernet2/0 status
Service Module is Cisco GigabitEthernet2/0
Service Module supports session via TTY line 131
Service Module is trying to recover from reset/shutdown
Service Module reset on error is disabled
Service Module heartbeat-reset is enabled
Service Module status is not available

midnight-cisco2951#conf term
Enter configuration commands, one per line.  End with CNTL/Z.
midnight-cisco2951(config)#in
midnight-cisco2951(config)#line 131
midnight-cisco2951(config-line)#speed ?
  <0-4294967295>  Transmit and receive speeds

midnight-cisco2951(config-line)#speed 57600
 Only baud rates 9600 and 115200 are supported
Failed to change line 131's speed
midnight-cisco2951(config-line)#-

how do i fix this ??

i have same issue,

midnight-cisco2951#service-module GigabitEthernet2/0 status
Service Module is Cisco GigabitEthernet2/0
Service Module supports session via TTY line 131
Service Module is trying to recover from reset/shutdown
Service Module reset on error is disabled
Service Module heartbeat-reset is enabled
Service Module status is not available

midnight-cisco2951#conf term
Enter configuration commands, one per line.  End with CNTL/Z.
midnight-cisco2951(config)#in
midnight-cisco2951(config)#line 131
midnight-cisco2951(config-line)#speed ?
  <0-4294967295>  Transmit and receive speeds

midnight-cisco2951(config-line)#speed 57600
 Only baud rates 9600 and 115200 are supported
Failed to change line 131's speed
midnight-cisco2951(config-line)#-

how do i fix with clock ??

tried on a 3945 router with etherswitch, same issue, wierd characters when connecting to service module, still no resolution :(

how do I use clock rate to fix this ?

dave