7705 SAR Interfaces
7705 SAR OS Interface Configuration Guide Page 97
hold-time
Syntax hold-time {[up hold-time-up] [down hold-time-down]}
no hold-time
Context config>port>sonet-sdh
Description This command configures SONET link dampening timers in 100s of milliseconds, to guard against
reporting excessive interface transitions. This is implemented by not advertising subsequent
transitions of the interface to upper layer protocols until the configured timer has expired.
Default no hold-time
Parameters up hold-time-up — configures the hold-timer for link up event dampening. A value of zero (0)
indicates that an up transition is reported immediately.
Values 0 to 100 (in 100 ms)
down hold-time-down — configures the hold-timer for link down event dampening. A value of zero
(0) indicates that a down transition is reported immediately.
Values 0 to 100 (in 100 ms)
loopback
Syntax loopback {line | internal}
no loopback
Context config>port>sonet-sdh
Description This command activates a loopback on the SONET/SDH port. The SONET port must be in a
shutdown state to activate any type of loopback. The loopback setting is never saved to the
generated/saved configuration file.
Default no loopback
Parameters line — sets the port into line loopback state
internal — sets the port into internal loopback state
Notes: Loopback mode changes on a SONET/SDH port can affect traffic on the remaining
ports.