Alcatel-Lucent 7750 Configuration Manual page 375

The no form of this command removes the working-circuit. The working circuit can only be removed from
the configuration after the protect circuit has been removed.
Default
none
Parameters port-id — Specify the physical port that will act as the working circuit for this APS group.
Syntax:
numberSpecify in
Syntax:
Modifying Hold-Down Timer Values
Note that for APS configurations, the hold-time down and hold-time up default values are 100 ms and 500
ms respectively. But, if there is a large difference in the transmission delay between the APS working
(working-circuit) and protect line (protect-circuit), it is highly suggested to increase the default timer on
the working line accordingly with the transmission delay present on the protect line. See
page 456.
The following output shows an example of the timers on POS interfaces.
A:NS044050253# show port aps-1
===============================================================================
SONET/SDH Interface
===============================================================================
Description
Interface
Admin Status
Physical Link
Single Fiber Mode
Clock Source
Last State Change
J0 String
Rx S1 Byte
Tx S1 Byte
Rx J0 String (Hex) : 81 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Cfg Alarm
Alarm Status
Hold time up
Hold time down
===============================================================================
Port Statistics
=============================================================================== Input
Output
-------------------------------------------------------------------------------
Packets
Discards
Unknown Proto Discards
===============================================================================
A:NS044050253#
For unprotected port these timer are different:
A:NS044050253# show port 2/2/2
===============================================================================
SONET/SDH Interface
7750 SR Interface Configuration Guide
port-id: slot/mda/port
number: 1-2
: APS Group
: aps-1
: up
: Yes
: No
: node
: 04/11/2007 13:53:01
: 2/1/5 7750-SR-7
: 0x00 (stu)
: 0x0f (dnu)
: loc lais lrdi ss1f lb2er-sd lb2er-sf slof slos lrei
:
: 500 milliseconds
: 100 milliseconds
Interface Configuration
Speed
Oper Status
Loopback Mode
Framing
Port IfIndex
Section Trace Mode
Rx K1/K2 Byte
Tx DUS/DNU
6670498
0
0
hold-time on
: oc3
: up
: none
: sonet
: 1358987264
: string
: 0x00/0x00
: disabled
3804661
0
Page 375