sync-if-timing
config>system
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
Commands in this context create or modify timing reference parameters.
abort
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command discards changes that have been made to the synchronous interface timing configuration during a session.
begin
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command creates or edits the system synchronous interface timing configuration.
bits1
config>system>sync-if-timing
7210 SAS-T (network and access-uplink), 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
Commands in this context configure parameters for the Building Integrated Timing Supply (BITS).
The 7210 SAS-R6 supports the configuration of only the BITS1 interface for use as an input or output reference. The 7210 SAS-R12 has only a single BITS port on the front panel, unlike the 7210 SAS-R6, which has two ports. Therefore, this command is invalid for the 7210 SAS-R12.
The 7210 SAS-T and 7210 SAS-Mxp allow for configuration of both BITS1 and BITS2 interface as an input and output reference.
On the 7210 SAS-T and 7210 SAS-Mxp, the BITS1 configuration parameters such as bits-interface-type, line-length, and source-reference are inherited for BITS2 interface. CLI commands are available that provide the user an option to administratively control the BITS2 interface, allowing them to shutdown or enable the BITS2 input and output independently of BITS1 interface. Read the other commands for more information.
[no] shutdown
config>system>sync-if-timing>bits1>input
config>system>sync-if-timing>bits1>output
7210 SAS-T (network and access-uplink), 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
This command administratively disables the entity. When disabled, an entity does not change, reset, or remove any configuration settings or statistics.
The operational state of the entity is disabled as well as the operational state of any entities contained within. Many objects must be shut down before they may be deleted.
The no form of this command places the entity into an administratively enabled state.
no shutdown
bits2
config>system>sync-if-timing
7210 SAS-T (network and access-uplink) and 7210 SAS-Mxp
Commands in this context configure parameters for the Building Integrated Timing Supply (BITS).
The 7210 SAS-R6 and 7210 SAS-R12 only support the configuration of the BITS1 interface for use as an input or output reference.
The 7210 SAS-T and 7210 SAS-Mxp support the configuration of both BITS1 and BITS2 interface as an input and output reference.
On the 7210 SAS-T and 7210 SAS-Mxp, the BITS1 configuration parameters such as bits-interface-type, line-length, source-reference, and so on, are inherited for the BITS2 interface. CLI commands are available to administratively control the BITS2 interface, allowing the user to shutdown or enable the BITS2 input and output independently of the BITS1 interface.
[no] shutdown
config>system>sync-if-timing>bits2>input
config>system>sync-if-timing>bits2>output
7210 SAS-T (network and access-uplink) and 7210 SAS-Mxp
This command administratively disables the entity. When disabled, an entity does not change, reset, or remove any configuration settings or statistics.
The operational state of the entity is disabled as well as the operational state of any entities contained within. Many objects must be shut down before they may be deleted.
The no form of this command places the entity into an administratively enabled state.
no shutdown
input
config>system>sync-if-timing>bits1
config>system>sync-if-timing>bits2
7210 SAS-T (network and access-uplink), 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
Commands in this context configure the external BITS timing reference input from the node. The user has the option to enable or disable the BITS interface input independently of each other.
The 7210 SAS-R6 and 7210 SAS-R12 only support the configuration of the BITS1 interface for use as an input or output reference.
The 7210 SAS-T and 7210 SAS-Mxp support the configuration of both BITS1 and BITS2 interface as an input and output reference.
On the 7210 SAS-T and 7210 SAS-Mxp, the BITS1 configuration parameters such as bits-interface-type, line-length and source-reference are inherited for the BITS2 interface. CLI commands are available to administratively control the BITS2 interface, allowing the user to shutdown or enable the BITS2 input and output independently of the BITS1 interface.
output
config>system>sync-if-timing>bits1
config>system>sync-if-timing>bits2
7210 SAS-T (network and access-uplink), 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
Commands in this context configure the external BITS timing reference output from the node. The user has the option to enable or disable the BITS interface output independently of each other.
The 7210 SAS-R6 and 7210 SAS-R12 only support the configuration of the BITS1 interface for use as an input or output reference.
The 7210 SAS-T and 7210 SAS-Mxp support the configuration of both BITS1 and BITS2 interface as an input and output reference.
On the 7210 SAS-T and 7210 SAS-Mxp, the BITS1 configuration parameters such as bits-interface-type, line-length, source-reference, and so on, are inherited for the BITS2 interface. CLI commands are available to administratively control the BITS2 interface, allowing the user to shutdown or enable the BITS2 input and output independently of the BITS1 interface.
interface-type {ds1 [{esf | sf}] | e1 [{pcm30crc | pcm31crc}]}
no interface-type
config>system>sync-if-timing>bits1
7210 SAS-T (network and access-uplink), 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
This command configures the BITS port to support one of the available interface types, through T1/DS1 or E1 synchronization interface and the desired framing with that interface type.
On the 7210 SAS-T and 7210 SAS-Mxp, BITS2 inherits the values configured for BITS1.
The no form of this command reverts to the default configuration.
ds1 esf
Specifies Extended Super Frame (ESF). This is a framing type used on DS1 circuits that consists of 24 192-bit frames, The 193rd bit provides timing and other functions.
Specifies Super Frame (SF), also called D4 framing. This is a common framing type used on DS1 circuits. SF consists of 12 192-bit frames. The 193rd bit provides error checking and other functions. ESF supersedes SF.
Specifies the pulse code modulation (PCM) type. PCM30CRC uses PCM to separate the signal into 30 user channels with CRC protection.
Specifies the pulse code modulation (PCM) type. PCM31CRC uses PCM to separate the signal into 31 user channels with CRC protection.
line-length {110, 220, 330, 440, 550, 660}
config>system>sync-if-timing>bits1>output
7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
This command configures the line-length parameter of the BITS output. This is the distance in feet between the network element and the office clock (BITS/SSU).
This command is only applicable when the BITS interface-type is DS1.
On the 7210 SAS-T and 7210 SAS-Mxp, BITS2 inherits the values configured for BITS1.
110
Specifies that the distance is from 0 to 110 feet.
Specifies that the distance is from 110 to 220 feet.
Specifies that the distance is from 220 to 330 feet.
Specifies that the distance is from 330 to 440 feet.
Specifies that the distance is from 440 to 550 feet.
Specifies that the distance is from 550 to 660 feet.
ssm-bit sa-bit
config>system>sync-if-timing>bits1
7210 SAS-T (network and access-uplink), 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
This command configures which sa-bit to use for conveying SSM information when the BITS interface-type is E1.
SSM is not available when the BITS interface-type is either T1/DS1 SF synchronization interface.
On the 7210 SAS-T and 7210 SAS-Mxp, BITS2 inherits the values configured for BITS1.
8
Specifies the sa-bit value.
commit
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command saves changes made to the system synchronous interface timing configuration.
ptp
config>system>sync-if-timing
7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx 1/10GE (standalone), 7210 SAS-Sx 10/100GE, and 7210 SAS-T (network and access-uplink)
Commands in this context configure parameters for system timing via IEEE 1588-2008, Precision Time Protocol.
This command is only available on the systems supporting the 1588-2008 frequency recovery engine.
ql-override {prs | stu | st2 | tnc | st3e | st3 | sec | prc | ssu-a | ssu-b}
no ql-override
config>system>sync-if-timing>ptp
config>system>sync-if-timing>ref1
config>system>sync-if-timing>ref2
config>system>sync-if-timing>bits1
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
The config>system>sync-if-timing>ptp and config>system>sync-if-timing>bits1 contexts are not supported on the 7210 SAS-Sx 10/100GE and 7210 SAS-S 1/10GE platforms.
This command configures the QL value to be used for the reference for SETS input selection and BITS output. This value overrides any value received by that reference's SSM process.
no ql-override
Specifies the SONET Primary Reference Source Traceable.
Specifies the SONET Synchronous Traceability Unknown.
Specifies the SONET Stratum 2 Traceable.
Specifies the SONET Transit Node Clock Traceable.
Specifies the SONET Stratum 3E Traceable.
Specifies the SONET Stratum 3 Traceable.
Specifies the SDH Primary Reference Clock Traceable.
Specifies the SDH Primary Level Synchronization Supply Unit Traceable.
Specifies the SDH Second Level Synchronization Supply Unit Traceable.
Specifies the SDH Synchronous Equipment Clock Traceable.
[no] ql-selection
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command specifies that the selection of system timing reference and BITS output timing reference (if available on the platform) takes into account quality level. This command turns-on or turns-off SSM encoding as a means of timing reference selection.
no ql-selection
ref-order first second third [fourth] [fifth]
ref-order ptp
no ref-order
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command organizes the priority order of the timing references. The synchronous equipment timing subsystem can lock to different timing reference inputs, those specified in the ref1, ref2 and ptp command configuration.
If a reference source is disabled, the clock from the next reference source as defined by ref-order is used. If all reference sources are disabled, then clocking is derived from a local oscillator.
If a sync-if-timing reference is linked to a source port that is operationally down, the port is no longer qualified as a valid reference. Depending on the platform used, either SFP or Fixed copper ports can be used as a reference.
On the 7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12, all three timing references can be enabled at the same time. In other words, it is allowed to specify the syncE and PTP references simultaneously. Only syncE and BITS are allowed as a reference.
The 7210 SAS-Sx 1/10GE (standalone) only supports the first and second parameters and it is allowed to specify the syncE and PTP references simultaneously.
The7210 SAS-S 1/10GE (standalone) and 7210 SAS-Sx 10/100GE (standalone) only support first and second parameters.
The no form of this command reverts the reference order to the default values.
bits1 bits2 ref1 ref2 ptp (7210 SAS-Mxp)
ref1 ref2 ptp bits1 bits2 (7210 SAS-T)
ref1 ref2 (7210 SAS-S 1/10GE (standalone))
ref1 ref2 ptp (7210 SAS-Sx 1/10GE (standalone) and 7210 SAS-Sx 10/100GE (standalone))
bits1 ref1 ref2 ptp (7210 SAS-R6 and 7210 SAS-R12)
Specifies the first timing reference to use in the reference order sequence.
Specifies the second timing reference to use in the reference order sequence.
Specifies the third timing reference to use in the reference order sequence. This parameter is supported only on 7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 devices.
Specifies the fourth timing reference to use in the reference order sequence. This parameter is supported only on 7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 devices.
Specifies the fifth timing reference to use in the reference order sequence. This parameter is supported only on 7210 SAS-T and 7210 SAS-Mxp devices.
Specifies that PTP must be used as a timing reference.
ref1
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
Commands in this context configure parameters for the first timing reference.
ref2
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
Commands in this context configure parameters for the second timing reference.
[no] revert
config>system>sync-if-timing
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command allows the clock to revert to a higher priority reference if the current reference goes offline or becomes unstable.
If revertive switching is enabled, the highest-priority valid timing reference will be used. If a reference with a higher priority becomes valid, a reference switch over to that reference will be initiated. If a failure on the current reference occurs, the next highest reference takes over.
If non-revertive switching is enabled, the valid active reference always remains selected, even if a higher-priority reference becomes available. If this reference becomes invalid, a reference switch over to a valid reference with the highest priority will be initiated. When the failed reference becomes operational, it is eligible for selection.
no revert
source-port port-id
no source-port
config>system>sync-if-timing>ref1
config>system>sync-if-timing>ref2
Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode; not supported on 7210 SAS platforms configured in the standalone-VC operating mode
This command configures the source port for timing reference ref1 or ref2. If the port is unavailable or the link is down, the reference sources are reevaluated according to the reference order configured using the ref-order command.
The no form of this command deletes the source port from the reference.
Specifies the physical port.