Cisco Cisco 1800 2800 3800 Series 4-Port EtherSwitch High-Speed WIC Guia De Informação
Q&A
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Setting Up a Data Call and Troubleshooting Call Connectivity Failures
Q.
A.
A.
I am experiencing ping and connectivity failures. What could be wrong?
Verify the following:
Verify the following:
●
Do you have a valid signal?
●
Did you verify with your service provider that you have the right account information?
●
Is the modem activated?
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Does the modem get an IP address?
●
Are your dialer and cellular configurations in place? Verify that all the related configurations
are in place as documented in the following links:
are in place as documented in the following links:
◦
◦
●
If you have all the configurations in place, enable the following debugs and verify:
◦
debug modem
◦
debug dialer
◦
debug chat
◦
debug ppp negotiation
◦
debug ppp error
◦
debug ppp event
Note: This debug requires you to have enable service internal enabled.)
Q.
A.
A.
My customer is experiencing low throughput on the 3G HWIC (HWIC-3G-CDMA).
Verify the following:
Verify the following:
●
Verify if the customer is using the latest IOS image, 12.4(15)T or later.
●
Verify with the show cellular x/x/x hardware command that the customer is running the latest
version of firmware and PRL.
version of firmware and PRL.
Note: You can find the latest PRL and firmware versions at the following link
.
●
Verify with the show cellular x/x/x all command that the modem is connected to the network
and there is a valid signal.
and there is a valid signal.
●
Verify if Rev A is enabled. Rev A should be enabled by default on al the modems. Issue the
show cellular x/x/x network command and check the current service. If it shows "Current
Service=1xEV-DO (rev A) and 1xRTT", then the Rev A is enabled.
show cellular x/x/x network command and check the current service. If it shows "Current
Service=1xEV-DO (rev A) and 1xRTT", then the Rev A is enabled.
If it is not, you can enable Rev A by using the following command on the CLI:
test cellular x/x/x cdma rev-a enable
Note: Ensure that service internal is enabled before executing test commands.