Alcatel-Lucent 7210 SAS M Interface Configuration Manual page 167

Ethernet Port Commands
hold-time
Syntax hold-time {[up hold-time up] [down hold-time down][seconds | centiseconds]}
no hold-time
Context config>port>ethernet
Description
This command configures port link dampening timers which reduce the number of link transitions reported
to upper layer protocols. The hold-time value is used to dampen interface transitions.
When an interface transitions from an up state to a down state, it is immediately advertised to the rest of the
system if the hold-time down interval is zero, but if the hold-time down interval is greater than zero,
interface down transitions are not advertised to upper layers until the hold-time down interval has expired.
Likewise, an interface is immediately advertised as up to the rest of the system if the hold-time up interval is
zero, but if the hold-time up interval is greater than zero, up transitions are not advertised until the hold-time
up interval has expired.
The no form of this command reverts to the default values.
Default
down 0 seconds — No port link down dampening is enabled; link down transitions are immediately reported
to upper layer protocols.
up 0 seconds — No port link up dampening is enabled; link up transitions are immediately reported to upper
layer protocols.
Parameters
up hold-time up — The delay, in seconds or centiseconds, to notify the upper layers after an interface
transitions from a down state to an up state.
Values
Values
down hold-time down — The delay, in seconds or centiseconds, to notify the upper layers after an interface
transitions from an up state to a down state.
Values
econds | centiseconds — Specify the units of your hold time in seconds or centiseconds.
Values
ip-mtu
Syntax [no] ip-mtu mtu-bytes
Context config>port>ethernet
Description This command allows the user to configure the IP MTU value. This value is used by all IP interfaces created
on the port. The IP MTU value specified must be smaller than the configured port MTU value. If the
configured IP MTU value is greater than the port MTU value, the IP MTU is set equal to the port MTU
value and the port MTU value is set to default. The MTU check is enforced on self-generated and forwarded
packets. The system uses the configured IP MTU value to ensure that packets sent out of the IP interfaces
Page 162
Guide
0 — 900 seconds
0, 10 — 90000 centiseconds in 5 centisecond increments
0 — 900
0 — 900 seconds
0, 10 — 90000 centiseconds in 5 centisecond increments
0 — 900
7210 SAS M, T, X, R6, R12, Mxp Interface Configuration