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APS Commands
switching-mode
Syntax
switching-mode {uni-1plus1 (R8.0)| bi-directional | uni-directional}
Context
config>port>aps
Description
This command configures the switching mode for the APS group.
Parameters
bi-directional — Configures the group to operate in Bidirectional 1+1 Signalling APS mode.
uni-directional — Configures the group to operate in Unidirectional 1+1 Signalling APS mode.
uni-1plus1 — Configures the group to operate in Unidirectional 1+1 Signalling and Datapath APS mode
(7750 SR-c4/c12 platforms only).
working-circuit
Syntax
working-circuit port-id
Context
config>port>aps
Description
This command configures a physical port that will act as the working circuit for this APS group. The
working circuit port must contain only the default configuration and cannot be part of another APS group.
The working circuit must be created before the protection circuit.
When a port is a working circuit of an APS group, the configuration available under config>port port-id
context (including submenus) is not allowed for that port unless it is a part of the noted exceptions.
When a port is being configured as a working circuit of an APS group, all common configuration as
described above and all service configurations related to the APS port is operationally inherited by the
working circuit from the aps-group-id. If the working circuit cannot inherit that configuration, for example,
due to resource limitations, the configuration attempt fails and an error is returned to the user.
Before a working circuit can be removed from an APS group, the working circuit port must be shutdown.
The inherited configuration for the circuit and APS operational commands for that circuit are not preserved
when the circuit is removed from the APS group.
Note that all configurations for aps-group-id under the config>port context and its submenus and all
configuration for services that use this aps-group-id is preserved as a non-activated configuration since the
APS group no longer has any physical circuits assigned.
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:
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
Page 202
port-id:
slot/mda/port
7710 SR OS Interface Configuration Guide
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