Table 9-16 Dspncdp Command Objects - Cisco MGX 8850 (PXM1E/PXM45) Configuration Manual

Managing NCDP Clock Sources
When the switch is configured for manual clock distribution, the only parameter that is useful in the
Note
dspncdp display is the Distribution Mode.
Table 9-16

Table 9-16 dspncdp Command Objects

Parameter
Distribution Mode
Node stratum level
Max network diameter
Hello time interval
Holddown time interval
Topology change time
interval
Root Clock Source
Root Clock Source Reason
Root Clock Source Status
Root Stratum Level
Root Priority
Secondary Clock Source
Secondary Clock Source
Reason
Secondary Clock Source
Status
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
9-36
describes the objects displayed by the dspncdp command.
Description
Current enabled method of clock distribution. If the method chosen is
manual, NCDP is turned off, and vice-versa.
Stratum level of the clock source. Possible levels are 1, 2E, 2, 3E, 3,
4E, or 4.
Maximum network diameter measured in hops.
Time interval between each configuration pdu sent out by a node to
advertise the best clock source in the network. This time interval is
specified in milliseconds in the display.
Number of milliseconds the switch waits before it transmits the next
configuration PDU.
Time interval for which the topology change detection field in the
configuration pdu bit will be set. Having the topology change
detection option set informs the recipient node that it needs to transmit
configuration pdus out to advertise to its neighbors about recent
topology or root clock changes.
Clock port from which the node is deriving the clock signal. 255.255
means the node is deriving the clock source from an internal oscillator.
The reason for the most recent change of a source of network clock.
For a detailed description of the reasons a clock source can change,
refer to Table 2-12 in the Cisco MGX 8850 (PXM45/PXM1E), Cisco
MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Command
Reference, Release 5.
Status of the network's root clock source.
Stratum level of the network's root clock source. Possible levels are 1,
2E, 2, 3E, 3, 4E, or 4.
Priority of the network's root clock source.
Secondary clock port from which the node is deriving the clock signal.
255.255 means the node is deriving the clock source from an internal
oscillator.
The reason for the most recent change of the secondary network clock
source. For a detailed description of the reasons a clock source can
change, refer to Table 2-12 in the Cisco MGX 8850 (PXM45/PXM1E),
Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Command
Reference, Release 5.
Status of the network's secondary clock source.
Chapter 9 Switch Operating Procedures
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004