Specifications

7-35
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 7 Switch Operating Procedures
Managing NCDP Clock Sources
Display A Specific NCDP Clock Sources
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 7-17 describes the objects displayed by the dspncdpclksrc command.
Table 7-16 dspncdp Command Objects
Parameter Description
Distribution Mode Current enabled method of clock distribution. If
the method chosen is manual, NCDP is turned off,
and vice-versa.
Node stratum level Stratum level of the clock source. Possible levels
are 1, 2E, 2, 3E, 3,4E, or 4.
Max network diameter Maximum network diameter measured in hops.
Hello time interval 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.
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 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.
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.