Specifications

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Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Chapter 9 Switch Operating Procedures
Managing NCDP Clock Sources
Display A Specific NCDP Clock Source
Enter the dspncdpclksrc command to display configuration information about a specific NCDP clock
sources on the network.
M8850_LA.8.PXM.a > dspncdpclksrc 7.35
Best clock source : No
Priority : 100
Stratum level : 2
Primary reference src id : 0(external)
Health : Bad
M8850_LA.8.PXM.a >
Table 9-17 describes the objects displayed by the dspncdpclksrc command.
Holddown time interval Number of milliseconds the switch waits before it transmits the next
configuration PDU.
Topology change time
interval
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.
Root Clock Source 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.
Root Clock Source Reason 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 8800/8900 Series Command Reference,
Release 5.1.
Root Clock Source Status Status of the network’s root clock source.
Root Stratum Level Stratum level of the network’s root clock source. Possible levels are 1,
2E, 2, 3E, 3, 4E, or 4.
Root Priority Priority of the network’s root clock source.
Secondary 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.
Secondary Clock Source
Reason
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 8800/8900 Series
Command Reference, Release 5.1.
Secondary Clock Source
Status
Status of the network’s secondary clock source.
Last clk src change time Time when the root clock source last changed.
Last clk src change reason Reason why the root clock source last changed.
Table 9-16 dspncdp Command Objects (continued)
Parameter Description