Specifications

5-11
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 5 Configuring PPP and Authentication
Inspecting Active Call States
Timeouts: Absolute Idle
Limits: - -
Disconnect in: - -
PPP: LCP Open, PAP (<- AAA), IPCP
IP: Local 172.22.66.23, remote 172.22.90.2
Counts: 30 packets input, 1640 bytes, 0 no buffer
1 input errors, 1 CRC, 0 frame, 0 overrun
14 packets output, 290 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
In the previous example, notice that one call uses the following system resources:
`
TTY line 441
`
Asynchronous interface 1/2/09 (shelf/slot/port)
`
DS0 channel number 0/4/21
`
Modem 1/2/09
Note
Different data is presented at each layer of the connection. Understanding the roles
of the layers is very useful for troubleshooting purposes. The
show caller user
dude detailed
command displays detailed LCP negotiated parameters.
Table 5-2 describes some of the significant display output fields of the
show caller user
command:
Table 5-2 Show Caller User Command Descriptions
Field Description
User: dude, line tty 441,
service Async
Active user on line TTY 441. The output fields are
very similar to the
show line
command.
DS0:
(slot/unit/channel)=0/4/21
The DS0 channel used by the call.
User: admin, line As1/2/09,
service PPP
Active user on asynchronous interface 1/2/09. The
timeouts working on the PPP layer are displayed,
which are different from the TTY line timeouts.
PPP: LCP Open, CHAP (<-
AAA), IPCP
Superficial information about what is open in PPP.
The field “(<- AAA)” is somewhat misleading.
Local authentication is also from AAA.
For more detailed IPCP information, enter the
show
caller user dude detail
command.
IP: Local 172.22.66.23,
remote 172.22.90.2
The IP addresses on each end of the link. These
values are only displayed on the output for the
asynchronous interface.
Counts:
Counters from the
show interface async 1/2/09
command output.