Cisco router: Troubleshooting Cables, Connections, and Interface Cards
Maybe you have some problems on the network for Cisco router, but just don’t know where is wrong, in the case, do you remember to check the cables, connections, or the interface cards…
The engineer tells me: Check for the following symptoms to help isolate the problem, as Network problems can be caused by cables, cable connections, or interface cards, or by external devices such as a modem, transceiver, hub, wall jack, WAN interface, or terminal.
• Card is not recognized by the router.
– Make sure that the card is firmly seated in its slot.
– Check the LEDs on the card. Each card has its own set of LEDs. For information on these LEDs, refer to Cisco.com online support for the individual card.
- Make sure that you have a version of Cisco IOS software that supports the card. Check the Cisco.com online support document for software requirements for the interface card.
• Card is recognized, but interface ports do not initialize.
– Make sure that the card is firmly seated in its slot.
– Check external cable connections.
- Make sure that you have a version of Cisco IOS software and feature license that supports the card. Check the software requirements for the affected card, which can be found in the configuration note for the card.
• Router does not boot properly, or constantly or intermittently reboots.
- Make sure that the card is firmly seated in its slot.
- Check the router chassis or software.
• Router boots, but the console screen is frozen.
– Check the external console connection.
– Verify that the parameters for your terminal are set as follows:
(a) The same data rate as configured for the router (9600 baud is the default)
(b) 8 data bits
(c) 1 stop bit
(d) No parity generated or checked
• Router powers on and boots only when a particular card is removed.
- Check the card.
• Router powers on and boots only when a particular cable is disconnected.
- There may be a problem with the card or cable.
- Check that only one console cable is connected. Either a USB console or RJ-45, but not both
Hope can help you! If you have any problems with your Cisco router, contact to cisco.com, or our supplier: 3anetwork.com, email for us: info@3Anetwork.com.
And the competitive price for the Cisco router, please click here.
The Cisco router topic:
Cisco router: commond configuration overview