GigabitEthernet0/0/0/1 2389 YES
POS0/2/0/0 0 NO
POS0/2/0/0 <base> ppp 0 NO
POS0/2/0/0 ipv4 ipcp 0 NO
RP/0/RSP0/CPU0:router# show im dampening interface TenGigaE 0/1/0/0
TenGigE 0/1/0/0 (0x01180020)
Dampening enabled: Penalty 1625, SUPPRESSED (42 secs remaining)
Underlying state: Down
half-life: 1 reuse: 1000
suppress: 1500 max-suppress-time: 4
restart-penalty: 0
Protocol Capsulation Pen Suppression U-L State
-------------- ------------------ ----- --------------------- -------------
ipv6 ipv6 1625 YES 42s remaining Down
When dampening is configured on an interface it is also applied independently to all capsulations on that
interface. For example, the ppp or hdlc basecaps state can flap even while the interface stays up and if
keepalives fail. The show im dampening interface command contains one line for each such capsulation
as well as the interface itself.
Note
Table 27: show im dampening Field Descriptions
DescriptionField
Indicates the dampening state and penalty value: not
suppressed, suppressed.
Dampening
Underlying state of the interface: up, down,
administratively down (if an interface has been
configured to be “shutdown”).
underlying state
This is the time (in minutes) at which the penalty on
the interface would be half that of the original penalty
(of 1000) when the interface transitions from UP to
DOWN. It ranges from 1 to 45 minutes and the default
is 1 minute.
half_life
Penalty value below which a stable interface is
unsuppressed. It ranges from 1 to 20000 and the
default value is 750.
reuse
Limit at which an unstable interface is suppressed
when the penalty value exceeds the suppress value.
It ranges from 1 to 20000 and the default value is
2000.
suppress
Maximum time (in minutes) that an interface can be
suppressed. The default is 4 minutes.
max-suppress-time
Penalty assigned to the interface when it flaps.restart-penalty
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
514
Global Interface Commandsonthe Cisco ASR 9000 Series Router
show im dampening
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