Cisco Cisco ASR 5000
Exec Mode Commands (D-S)
ppp echo-test ▀
Command Line Interface Reference, StarOS Release 18 ▄
4175
Usage
Use this command to verify the point-to-point protocol communications. This command sends LCP keep-
alive echo packet to the peer PPP connection to verify proper communication between PPP connections.
alive echo packet to the peer PPP connection to verify proper communication between PPP connections.
ppp
echo-test
command waits for LCP echo response for configured numbers of tries, if response is not
received it will retry configured no of times with an interval of
5
seconds. This command accepts the
parameters call ID, IMSI, IP address, MSID, and user name to specify which active PPP session to consider.
ppp echo-test
command makes the dormant session active.
Caution:
Issuing this command could negatively impact system performance depending on the number of
subscribers using the same name and/or if the number of packets used in the test is large.
LCP includes Echo-Request and Echo-Reply codes in order to provide a Data Link Layer loopback
mechanism for use in exercising both directions of the link. This is useful as an aid in debugging, link quality
determination, performance testing, and for numerous other functions. Upon reception of an Echo-Request in
the LCP Opened state, an Echo-Reply is transmitted.
mechanism for use in exercising both directions of the link. This is useful as an aid in debugging, link quality
determination, performance testing, and for numerous other functions. Upon reception of an Echo-Request in
the LCP Opened state, an Echo-Reply is transmitted.
Example
The following command tests the PPP link to user
user1
.
ppp echo-test username user1
The following command tests the PPP link to the user assigned IP address
10.2.3.4
.
ppp echo-test ipaddr 10.2.3.4
The following tests the PPP link associated with call ID
fe80AA12
.
ppp echo-test callid fe80aa12