Specifications

5-12
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
Linking Service Module Lines to SRM Channels, VTs, or VCs
Step 7 To display the a list of all the APS lines on an SRM card, enter the dspapslns command.
Step 8 To display the configuration of a single APS line, enter the dspapsln command as follows:
M8850_LA.8.PXM.a > dspapsln 15.1.1
For information on managing redundant APS lines, see the “Managing Redundant APS Lines” section
in Chapter 9, “Switch Operating Procedures.”
Linking Service Module Lines to SRM Channels, VTs, or VCs
Once you have brought up the line or lines on your SRM card, you are ready to establish links, which
are configured mappings between the service module lines and the channels, virtual tributaries (VTs),
or virtual containers (VCs) within an SRM line. For example, you might create a link to connect line 1
in slot 14 to channel 5 within an SRM-3T3/C line.
Once you establish a link for a service module line, bulk distribution is enabled for the entire service
module and all lines must use bulk distribution. Although bulk distribution will work with a service
module back card installed, the service module cannot use the back card once bulk distribution is enabled
on any line.
Note The SRME and SRME/B cards support bulk distribution to E1 cards only when the SDH line type is
selected while configuring a line. The SRM-3T3/C card does not support bulk distribution to E1 service
modules.
To link a service module line to an SRM channel, VT, or VC and enable bulk distribution, use the
following procedure:
-wtr Replace Wait To Restore with the number of minutes to wait after the working line has
become functional again, before switching back to the working line from the protection
line. The range is 5-12.
Example:
-wtr 5
-dr Determines whether the line is unidirectional or bidirectional.
• 1 = Unidirectional. The line switch occurs at the receive end of the line.
• 2 = Bidirectional. The line switch occurs at both ends of the line.
Note This optional parameter is not shown in the above example because you do not
need to set it for a revertive line.
Example:
-dr 2
-rv Enables/disables revertive behavior. Replace revertive with the number 1 to disable
revertive behavior, or 2 to enable revertive behavior.
Example:
-rv 1
-proto Replace protocol with the number 1 to specify the Bellcore protocol, 2 to specify the ITU
protocol.
Table 5-5 cnfapsln Command Parameters (continued)
Option Description