cisco ccna dumps 2017

cisco ccna dumps 2017.On the Cisco router's synchronous serial interface, the default encapsulation is HDLC o To see the encapsulation type, use the command show interfaces To change the encapsulation of the serial interface to Cisco HDLC, use the command encapsulationhdko Note that if the Cisco router is connected to a non-Cisco router, using HDLC will result in the interface's status being °up,lineprotocolisdownM; this will also be the case if one end is using PPP and the other end is using HDLC; or if the DCE is not clocking the router (DTE). 'To view the data link layer encapsulation after HDLC has been configured, use the command show interfacesoRouter# show interfaces serial 1 Seriall is up, line protocol is up Hardware is MCI SerialInternet address is 192.168.2.2 255.255.255.0 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usee, rely 255/255, load 1/255 Encapsulation HDLC, loopback not set, keepalive set set, keepalive set (10 sec) Last input 0:00:02, output 0:00:00, output hang neverIn this example, note that both the physical and data link layer states of the interface are up, and the encapsulation type is Cisco HDLC (EncapsulationHDLC) oDon't forget that the command encapsulation hdlc is configured by default on the serial interface, but it is not displayed when you use the command show running-config. To see the encapsulation type of the serial interface, use the command show interfaces o As you can see from the output of the command show interfaces, the HDLC sends a survival message and expects a response (the survival message timer defaults to 10 seconds). If no response is received to a live message, the status of the interface will be "up,lineprotocolisdown" oVideo 24.01.A multimedia demonstration of configuring HDLC on a router is included in the companion digital resource to this book.Authentication target 24.0324.3 PPP