| |
Command |
Command Description |
Command Syntax |
|
3.1.6 |
encapsulation hdlc |
This command configures the interface to HDLC encapsulation. This
encapsulation method provides the synchronous framing and error
detection functions of HDLC without windowing or retransmission. This
is the default for synchronous serial interfaces. |
encapsulation hdlc |
|
3.1.7 |
show interfaces serial <X> |
Use the
show interfaces
EXEC command to display statistics for all
interfaces configured on the router or access server. The resulting
output varies, depending on the network for which an interface has
been configured. The summary option limits the amount of information
presented. |
show interfaces {type number} |
| |
show controllers |
Use the
show controllers
serial privileged EXEC command to display
information that is specific to the interface hardware. |
show controllers serial [slot/port] |
| |
show controllers cbus |
Displays the internal status of each interface processor and lists
each interface. |
show controller cbus |
| |
debug serial interface |
Verifies whether HDLC keepalive packets are incrementing. If they are
not, a possible timing problem exists on the interface card or in the
network. |
debug serial interface |
| |
debug arp |
Indicates whether the router is sending information about or learning
about routers on the other side of the WAN cloud, using ARP. Use this
command when some nodes on a TCP/IP network are responding, but others
are not. |
debug arp |
| |
debug frame-relay lmi |
Obtains Local Management Interface (LMI) information useful for
determining whether a Frame Relay switch and a router are sending and
receiving LMI packets. |
debug frame-relay lmi |
| |
debug frame-relay events |
Determines whether exchanges are occurring between a router and a
Frame Relay switch. |
debug frame-relay events |
| |
debug ppp negotiation |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). This command displays PPP packets sent during PPP startup,
where PPP options are negotiated. |
debug ppp {packet | negotiation | error | authentication |
compression | cbcp} |
| |
debug ppp packet |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). This command displays PPP packets being sent and received. |
debug ppp {packet | negotiation | error | authentication |
compression | cbcp} |
| |
debug ppp error |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). This command displays protocol errors and error statistics
associated with PPP connection negotiation and operation. |
debug ppp {packet | negotiation | error | authentication |
compression | cbcp} |
| |
debug ppp authentication |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). This command displays authentication protocol messages,
including Challenge Handshake Authentication Protocol (CHAP) packet exchanges
and Password Authentication Protocol (PAP) exchanges. |
debug ppp {packet |
negotiation | error | authentication | compression |
cbcp} |
|
3.2.6 |
encapsulation ppp |
This command is used to set the encapsulation type of a serial
interface to Point-to-Point Protocol (PPP). |
encapsulation ppp |
|
3.3.2 |
compress [predictor | stac] |
To configure software compression for Point-to-Point Protocol (PPP)
encapsulation, use the compress interface configuration command. To
disable compression, use the no form of this command. |
compress [predictor |
stac |
mppc [ignore-pfc]] |
| |
ppp quality percentage |
Enables Link Quality Management (LQM) on the interface. The percentage
argument specifies the link quality threshold in a range from 1 to
100. That percentage must be maintained, or the link is deemed to be
of poor quality and is taken down. |
ppp quality percentage |
| |
ppp multilink |
To enable Multilink PPP (MLP) on an interface and, optionally, to
enable dynamic bandwidth allocation, use the
ppp multilink
interface
configuration command. |
ppp multilink [bap] |
|
3.3.3 |
username Tokyo password cisco |
To establish a username-based authentication system, enter the
username
global configuration command. |
username name password secret |
| |
ppp authentication chap |
To enable Challenge Handshake Authentication Protocol (CHAP) or
Password Authentication Protocol (PAP) or both and to specify the
order in which CHAP and PAP authentication are selected on the
interface, use the ppp
authentication command in
interface configuration mode. The interface must be using
ppp encapsulation
to access these protocols. To disable this authentication, use the
no
form of this command. |
ppp authentication {chap |
chap pap | pap chap | pap} [if-needed] [list-name |
default] [callin] |
|
3.3.5 |
debug ppp authentication |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). |
debug ppp {packet |
negotiation | error | authentication | compression |
cbcp} |
| |
debug ppp |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). |
debug ppp {packet |
negotiation | error | authentication | compression |
cbcp} |
| |
debug ppp {packet | negotiation | error |
authentication} |
Use the
debug ppp
EXEC command to display information on traffic and
exchanges in an internetwork implementing the Point-to-Point Protocol
(PPP). |
debug ppp {packet |
negotiation | error | authentication | compression |
cbcp} |
| |
no debug ppp {packet | negotiation | error |
authentication} |
To disable a
debug
command, use the
no
form of the command. |
no debug ppp {packet |
negotiation | error | authentication | compression |
cbcp} |
