Specifications
5-4
Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Chapter 5 Preparing SRM Cards for Communications
Setting Up SRM Lines
Setting Up SRM Lines
The first step in configuring SRM lines is to define the physical lines that are connected to the switch.
The following sections describe how to do the following procedures:
• Bring up lines
• Configure lines
• Verify the configuration of lines
Bringing Up Lines
Before a line is brought up, or after it is brought down, the switch does not monitor the line. The SRM
port status light for the line is unlit, and all line alarms are cleared.
When you bring up a line, the switch starts monitoring the line. The SRM line status light is green when
physical layer communication is established with a switch or CPE. If physical layer communications
problems are detected, the port status light turns red, and alarms are reported.
Tip To minimize the number of alarms and failed port status lamps (which display red), keep lines down until
they are ready for operation.
To bring up a line on the SRM, use the following procedure.
Step 1 Establish a configuration session on the PXM card using a user name with GROUP1 privileges or higher.
Step 2 Enter the upln command at the switch prompt.
mgx8830b.1.PXM.a > upln <X.line>
Replace <X> with the logical slot number of the SRM. On a MGX 8850 (PXM1E/PXM45), replace <X>
with 15 if the line is connected to a back card in the upper bay, or replace it with 31 if the line is
connected to a back card in the lower bay. On a Cisco MGX 8830, replace <X> with 7.
Replace <line> with the line number you want to bring up. For example:
PXM1E_SJ.8.PXM.a > upln 31.1
Step 3
cnfln <options>
Related commands:
dsplns
dspln -type <bay.line>
At the active PXM prompt, configure the T3 lines if you want to
change the default values.
See the “Configuring T3 Lines” section later in this chapter.
Step 4
addlink Map service module lines to the SRM channels they will use.
See the “Linking Service Module Lines to SRM Channels, VTs,
or VCs” section later in this chapter.
Command Purpose