![error fix kit serial number error fix kit serial number](https://www.graitec.com/wp-content/uploads/2017/09/sdbgvd.png)
Keepalives are not being sent by the remote router.Ī leased-line or other carrier service problem has occurred (noisy line or misconfigured or failed switch).Ī timing problem has occurred on the cable (SCTE 5 not set on CSU/DSU). Serial x is up, line protocol is down (DTE mode)Ī local or remote router is misconfigured. If the connection comes up, the previously connected interface has a problem. If you suspect faulty router hardware, change the serial line to another port. Contact your leased-line or other carrier service to see whether there is a problem.Ħ. Insert a breakout box and check all control leads.Ĥ. Verify that you are using the proper cable and interface (see your hardware installation documentation).ģ. Check the LEDs on the CSU/DSU to see whether the CD is active, or insert a breakout box on the line to check for the CD signal.Ģ. The router is not sensing a CD 2 signal (that is, the CD is not active).Ī telephone company problem has occurred-line is down or is not connected to CSU 3/DSU 4.ġ. Serial x is down, line protocol is down (DTE 1 mode) This is the proper status line condition.
Error fix kit serial number how to#
This section describes how to use the show interfaces serial command to diagnose serial line connectivity problems in a wide-area network (WAN) environment. Figure 15-1 shows the output of the show interfaces serial exec command for a High-Level Data Link Control (HDLC) serial interface.
![error fix kit serial number error fix kit serial number](https://docs.memoq.com/ggl-tst/Images/0-c/activation-wizard-enter-serial.png)
The output of the show interfaces serial exec command displays information specific to serial interfaces.
![error fix kit serial number error fix kit serial number](https://zehndersommer.com/fileadmin/_processed_/c/f/csm_20200407_RMA-Vorlage_Englisch_3afad0c5aa.png)
Troubleshooting Using the show controller e1 Command Troubleshooting Using the show isdn status Command Verify that isdn switchtype and pri-group Are Configured Correctly Transmit (Tx) Remote Alarm Indication (Yellow)įraming Loss Seconds Counter Is Increasing Receive (Rx) Remote Alarm Indication (Yellow) Receive (RX) Alarm Indication Signal (AIS) (Blue) Troubleshooting Using the show controller t1 Command Using Priority Queuing to Reduce BottlenecksĬSU and DSU Local Loopback Tests for HDLC or PPP LinksĬSU and DSU Remote Loopback Tests for HDLC or PPP Linksĭetailed Information on the show interfaces serial Command Serial Lines: Increasing Carrier Transitions Count on Serial Link Serial Lines: Increasing Interface Resets on Serial Link Serial Lines: Troubleshooting Serial Line Input Errors Serial Lines: Increasing Input Errors in Excess of 1 Percent of Total Interface Traffic Serial Lines: Increasing Input Drops on Serial Link Serial Lines: Increasing Output Drops on Serial Link Serial Lines: show interfaces serial Status Line Conditions Troubleshooting Using the show interfaces serial Command