Specifications

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Cisco ONS 15454 and Cisco ONS 15327 TL1 Command Guide, R3.3
May 2002
Chapter 3 TL1 Command Descriptions
TL1 Commands
Force Switch of Working Line (to Protection Line). If the AID identifies a working line, then service
will be transferred from the working line to the protection line unless a request of equal or higher priority
is in effect. A lockout of protection and a signal fail of protection line have higher priority than this
switch command.
Lockout of Protection Line. If the AID identifies the protection line, this switch command will prevent
the working line from switching to protection line. If the working line is already on protection, then the
working line will be switched back to its original working line.
Lockout of Protection Line. If the AID identifies protection line, this switch command will prevent the
working line from switching to protection line. If the working line is already on protection, then the
working line will be switched back from protection line to its original working line.
Notes:
1. This command is not used for the common control (TCC+ or XC/XCVT) cards. A query on a
common control card will generate an IIAC (Input, Invalid Access Identifier) error message. To use
this command on the common control card switching commands, use the SW-DX-EQPT and
ALW-SWDX-EQPT commands.
2. Sending this command on non-SONET (OCN) cards, an IIAC (Input, Invalid Access Identifier) error
message should be received. To query on a non-SONET card switching command, use the
ALW-SWTOPROTN/SWTOWKG-EQPT and INH-SWTOPROTN/SWTOWKG-EQPT commands.
3. When sending this command to query on a card that is not in a protection group, the SNVS (Status,
Not in Valid State) error message should be received.
4. When sending this command to a working card that is failed or missing, the SWFA (Status, Working
unit Failed) error message should be received.
5. When sending this command to a protect card that is failed or missing, the SPFA (Status, Protection
unit Failed) error message should be received.
6. When sending this command to a card that is already in protection with a higher priority, the SSRD
(Status, Switch Request Denied) error message should be received.
7. Sending this command to an OCN line with a switching mode that is already in mode, will return a
SAMS (Already in the Maintenance State) error message.
8. To get the protection switching state (manual, lockout, forced), use the RTRV-COND-ALL or
RTRV-ALM-ALL commands.
9. Sending the OPR-PROTNSW-OCN command with Manual (or Force) switch over the BLSR line
and the BLSR ring has already been in a higher switching state Force (or Lockout Span), the
command returns the COMPLD without any standing switching condition, for example,
MANUAL-REQ-RING, or FORCED REQ-RING, SC. This means the switching request is
preempted. CTC shows this end as APS-CLEAR state.
10. Sending the OPR-PROTNSW-OCN command with Force (or Lockout Span) switch over the BLSR
line (near end) and the BLSR (far end) has already been in a lower switching state, Manual (or
Force), the command returns the COMPLD with proper standing switching events on the command
sent to the near end. The far end (that used to be the lower switch state) sends out the switch clear
events, for example, MANUAL-REQ-RING, or FORCED-REQ-RING, CL. This means the lower
state end is preempted. CTC shows the low state end as APS-CLEAR.
Section OPR-PROTNSW-<OCN_TYPE> Description
Category SONET Line Protection
Security Maintenance