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Cisco Employee

%MAINBOARD-2-INVALID_TXRX: [char] doesn't support different tx speed [dec] and rx speed [dec]

Hi Friends,

%MAINBOARD-2-INVALID_TXRX: [char] doesn't support different tx speed [dec] and rx speed [dec]

    Could anyone explain me what this error message reffers to.

How is Tx and Rx speeds been decided in the interface.?

Can i change them ?

If I can..... how I can change.?

And in what situations I would change them ?

I see that txload 1/255 rxload 1/255 in the show interface........................is this what its referring to ?

I also see txspeed command in the line configuration.

Why this option is only there in line..... why not in other interfaces ?????????

I know its a lot of questions.........but I m sure it all refers to one explanation.

I dint get any documents or cases which can explain this......

So please do help me.

Thank you in advance

Regards

Jinkle

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Cisco Employee

%MAINBOARD-2-INVALID_TXRX: [char] doesn't support different tx s

Hi Jinkle,

This message means that you are trying to configure the speed on a async serial interface. When HWIC serial interfaces is operating in async mode, we can not have different txspeed and rxspeed on corresponding line. TxSpeed and RxSpeed need to be same .

Execute "show line to see the tx/rx line speeds. E.g. for 2851 router interfaces Serial0/0/0, Serial 0/0/1:


2851(config-line)#do sh line    Tty Line Typ     Tx/Rx    A Modem  Roty AccO AccI  Uses  Noise Overruns  Int *     0    0 CTY              -    -      -    -    -     0      0    0/0      -       1    1 AUX   9600/9600  -    -      -    -    -     0      0    0/0      - A 0/0/0    2 TTY 115200/115200-    -      -    -    -     0    838 295573/0  Se0/0/0   0/0/1    3 TTY   9600/9600  -    -      -    -    -     0      0    0/0    Se0/0/1

Kind Regards,
Ivan

**Please grade this post if you find it useful.

Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Cisco Employee

%MAINBOARD-2-INVALID_TXRX: [char] doesn't support different tx s

Hi Ivan,

        So that means, the normal ethernet or serial interface which runs in synchronous mode does not have this tx and rx speeds. Or it is predifined and we cannot change. ?

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