See the following sections:
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Note: For information about the hold-time statement at the [edit interfaces interface-name unit logical-unit-number family (inet | inet6) address address (vrrp-group | vrrp-inet6-group) group-number preempt] and [edit logical-systems logical-system-name interface interface-name unit logical-unit-number family (inet | inet6) address address (vrrp-group | vrrp-inet6-group) group-number preempt], see the JUNOS High Availability Configuration Guide. |
- hold-time milliseconds;
- [edit interfaces interface-name sonet-options aps]
Statement introduced before JUNOS Release 7.4.
Hold-time value to use to determine whether a neighbor APS router is operational.
milliseconds—Hold-time value.
See Configuring SONET/SDH Physical Interface Properties.
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
- hold-time seconds;
- [edit interfaces interface-name unit logical-unit-number family llc2 redundancy-group group-number preempt],
- [edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number family llc2 redundancy-group group-number preempt]
Statement introduced in JUNOS Release 7.5.
Hold time before a higher-priority backup router preempts the master router.
DLSw preemption is not timed.
seconds—Hold-time period.
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
- hold-time up milliseconds down milliseconds;
- [edit interfaces interface-name]
Statement introduced before JUNOS Release 7.4.
Hold-time value to use to damp interface transitions. When an interface goes from up to down, it is not advertised to the rest of the system as being down until it has remained down for the hold-time period. Similarly, an interface is not advertised as being up until it has remained up for the hold-time period.
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Note: The hold-time option is not available for controller interfaces. |
Interface transitions are not damped.
down milliseconds—Hold time to use when an interface transitions from up to down. The JUNOS software advertises the transition within 100 milliseconds of the time value you specify.
up milliseconds—Hold time to use when an interface transitions from down to up. The JUNOS software advertises the transition within 100 milliseconds of the time value you specify.
See Damping Interface Transitions.
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
- hold-time up milliseconds down milliseconds;
- [edit interface interface-name sonet-options trigger defect]
Statement introduced before JUNOS Release 7.4.
For ATM over SONET/SDH and SONET/SDH interfaces only, apply up and down hold times to SONET/SDH defect triggers. When you apply a down hold time to a defect, the defect must remain present for at least the hold-time period before the interface is marked down. When you apply an up hold time to a defect, the defect must remain absent for at least the hold-time period before the interface is marked up, assuming no other defect is outstanding.
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Note: On M-series and T-series platforms with Channelized SONET IQ PICs and Channelized SONET IQE PICs, the SONET defect alarm trigger hold-time statement is not supported. |
If you do not include this statement, when a defect is detected the interface is marked down immediately, and when the defect becomes absent the interface is marked up immediately.
down milliseconds—Hold time to wait before the interface is marked down.
up milliseconds—Hold time to wait before the interface is marked up.
See Configuring SONET/SDH Physical Interface Properties.
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
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