Specifications

5-10
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 5 Configuring PPP and Authentication
Inspecting Active Call States
Task 6. Inspecting Active Call States
After a basic PPP modem call comes into the NAS, you should use some
show
commands to inspect
several active call statistics. If you try to use the client’s web browser after the modems connect, you
will test DNS, IP, and other functions. If your test fails, try pinging the DNS server from the device that
dialed in.
6.1 Show Caller Statistics
The
show caller
command is used to:

View individual users and consumed resources on the NAS.

Inspect active call statistics for large pools of connections. (Debug commands produce too much
output and tax the CPU too heavily.)

Display the absolute and idle times for each user. The current values for both of these settings are
displayed on the TTY line and the asynchronous interface. Users that have been idle for
unacceptably long periods of time can be easily identified. By using this information, you can
define timeout policies and multiple grades of services for different users.
The
show caller
command has many options:
5800-NAS#show caller ?
full Provide expanded caller information
interface Provide information on one interface
ip Display IP information
line Provide information on one line
timeouts Display session and idle limits and disconnect time
user Display information for a particular user
| Output modifiers
<cr>
5800-NAS#show caller
Active Idle
Line User Service Time Time
vty 0 admin VTY 00:54:39 00:00:00
tty 441 dude Async 00:00:15 00:00:00
As1/2/09 dude PPP 00:00:08 00:00:00
5800-NAS#show caller user dude
User: dude, line tty 441, service Async
Active time 00:01:24, Idle time 00:01:05
Timeouts: Absolute Idle Idle
Session Exec
Limits: - - 00:10:00
Disconnect in: - - -
TTY: Line 1/2/09, running PPP on As1/2/09
Location: PPP: 192.168.10.4
DS0: (slot/unit/channel)=0/4/21
Status: Ready, Active, No Exit Banner, Async Interface Active
HW PPP Support Active, Modem Detected
Capabilities: Hardware Flowcontrol In, Hardware Flowcontrol Out
Modem Callout, Modem RI is CD,
Line usable as async interface, Modem Autoconfigure
Modem State: Ready, Modem Configured
User: dude, line As1/2/09, service PPP
Active time 00:01:17, Idle time 00:01:05