Configuration Commands
Page 384 7750 SR OS Interface Configuration Guide
Description This command enables the sending of keepalive messages and configures the time between messages 
and how many reports can be missed before bringing the link down.
The no form of this command disables the sending of echo requests. 
Default keepalive 10 dropcount 3 
Parameters time-interval — The time interval, in seconds, that echo requests are issued. 
Values 1 — 60
Default 10
dropcount count — The number of keepalive  messages that can be missed before the line is brought 
down.
Values 1— 255
Default 3
report-alarm
Syntax [no] report-alarm {pais | plop | prdi | pplm | prei}
Context config>port>sonet-sdh>path
Description This command enables logging of SONET (SDH) path alarms for a SONET-SDH port. Only path 
alarms can be configured in the channel context. 
The no form of this command disables logging of the specified alarms.
Parameters pais — Reports path alarm indication signal errors. When configured, pais alarms are raised and 
cleared. 
Default pais alarms are not issued
plop — Reports path loss of pointer (per tributary) errors. When configured, plop traps are raised but 
not cleared.
Default plop traps are issued
prdi — Reports path remote defect indication errors. When configured, prdi alarms are raised and 
cleared. 
Default prdi alarms are not issued
pplm — Reports a path payload mismatch, as a result the channel will be brought down. When 
configured, pplm traps are raised but not cleared. 
Default pplm traps are issued
prei — Reports a path error condition raised by the remote as a result of b3 errors received from this 
node. When configured, prei traps are raised but not cleared
Default prei traps are not issued