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Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Chapter 3 Provisioning PXM1E Communication Links
General PXM1E Configuration Procedures
Tip
To get the correct slot
:
bay
.
line
:
ifnum specification, use the port ID displayed by the
dsppnports command.
Step 3
To configure an additional clock source, repeat
using the correct parameters for the additional
source.
The following command example shows how to configure a secondary clock source for subport (logical
port) 10 on line 1 of the PXM1E card in slot 1. Note the placement of the periods and colons.
mgx8830a.1.PXM.a >
cnfclksrc secondary 1:2.1:10
Verifying PNNI Communications
After setting up trunks or when problems occur, use the procedures in this section to determine if PNNI
is operating. The next section describes how to verify PNNI communications on a single trunk. The
following section describes how to verify PNNI communications between two nodes, which can be
separated by multiple PNNI links.
Table 3-16 Parameter Descriptions for cnfclksrc Command when Used for PXM1E
Parameter
Values
Descriptions
priority
primary or secondary
Replace priority with the type of clock source, which is either
primary or secondary. The default is primary.
shelf
1
The shelf value is always 1, and it is optional.
slot
1 or 2 on a Cisco MGX 8830
7 or 8 on a Cisco MGX 8850 (PXM1E)
The slot identifies the slot number of the PXM1E card that is
receiving the clock signal.
bay
1 or 2 on a Cisco MGX 8830
7 or 8 on a Cisco MGX 8850 (PXM1E)
The bay identifies the bay in which the back card is installed.
If the clock source line is connected to upper card, enter 1. If
it is connected to the lower card, enter 2. The default is 1
In a PXM1E card, the clock source line is always connection
to the back card in the lower bay (2).
line
1 to 16
The line number corresponds to the line number on the back
card. The line must already be active (using upln).
ifnum
1 to 31
The ifnum number corresponds to the interface number or
logical port number, which is from 1 to 31. The interface
number must have been previously defined using the addport
or addimaport commands.
Note
If an IMA port is chosen as the clock source, the
actual clock is derived from one of the links in the
IMA group. The source link is called the Transmit
Reference Link (TRL).