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Tasks for Configuring Cards and Services
PXM, the connections are global logical connections (GLCNs). By default, all resources on a a card
or logical port are available to any controller on a first-come, first-served basis. If necessary, you can
modify the resource partitioning at the card level or logical port level. Port-level resource
modification follows card-level modification, so the available port-level resources depend on
whether and how much you change the card-level resource partitioing. You do not have to change
the resource partitioning for the card before changing resource partitioning for a port.
The current network control application is Portable AutoRoute (PAR). Planning considerations
should include the possibility of modifying the partitioning of resources for the interface. For
example, the MGX 8850 switch has the capacity to support a Cisco Multi-Protocol Label Switching
(MPLS) controller or a Private Network to Network Interface (PNNI) controller.
Sequence of Configuration Tasks
In a new switch, the common approach is to configure the same aspect for all cards at once—adding
logical ports to all applicable cards, for example. In contrast, the likely sequence for installing a
single card is to begin with its card-level features and continue until you have configured every
connection. The common tasks for a new switch are:
Optionally configure the service modules (except the RPM) for redundancy. This card-level
1
operation requires redundant cards and possibly an MGX-SRM-3T3/B.
2
Optionally configure resource partitioning for the whole card if the default partitioning does not
fulfill the purpose of the card.
Activate physical lines.
3
Configure the line if default parameters are not appropriate.
4
Create the logical ports then modify them as needed.
5
Optionally configure resource partitions for a logical port if the default partitioning does not
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support the intended operation of the port.
Add connections then modify them as needed.
7
Rules for Adding Connections
This section describes the rules for adding local connections, three-segment connections, and
management connections. The MGX 8850 switch can support:
•
Local-only, digital access and cross-connect (DAX) connections
•
Three-segment connections across an ATM or Frame Relay network
•
IP management connections (stand-alone switches only)
A management connection is an inband IP connection that lets a workstation control a local or
remote MGX 8850 switch through a service module rather than the Ethernet port on a PXM-UI.
Although the rules include references to CLI syntax, they also apply to the Cisco WAN Manager
application.
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Cisco MGX 8850 Installation and Configuration, Release 1.1.00, Part Number 78-6186-02
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