Cisco MGX 8830, Руководство по настройке

Страница: 172 / 642

3-44
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
Step 7
To display information on a specific APS line, enter the dspapsln <slot.bay.line> command on the active
PXM1E card.
For information on managing APS lines, see the “ Managing Redundant APS Lines ” section in Chapter 9,
“Switch Operating Procedures.”
Adding ATM Ports
The previous chapter described how to bring up physical lines by specifying the correct line port number.
The line ports correspond to line connectors on the switch back cards. Bringing up a line establishes
minimal connectivity between two nodes. When you add an ATM port to a line, you enable ATM
communications over the line.
Each line can support UNI or NNI ports. UNI ports are used for lines that connect to PBXs, ATM routers,
and other ATM devices that connect to the core ATM network through the switch. NNI ports are used
for trunks that connect to other core ATM network devices, such as another
Cisco MGX 8850 (PXM1E/PXM45) switch.
You must configure one ATM port for each line or trunk to enable ATM communications over that link.
You define the port type when you add the ATM port to the line or trunk. The port type can be one of the
following:
• UNI
•
NNI
• VUNI
• VNNI
•
EVUNI
• EVNNI
To add an ATM port to a line, use the following procedure.
Step 1 Establish a configuration session using a user name with GROUP1 privileges or higher.
Step 2
Get the line number on which you will add the port. To display a list of the lines and line numbers, enter
the following command:
mgx8830a.1.PXM.a > dsplns
Tip
Remember that you cannot configure a line until you have brought it up as described in
“
Bringing Up Lines ,” which appears earlier in this chapter.
Step 3
Verify that the line and port number you want to use is not configured. To display a list of the ports
configured on the PXM1E card, enter the following command:
mgx8830a.1.PXM.a > dspports
This command displays all ports on the PXM1E card in the ifNum (interface number) column. The
interfaces listed include UNI, NNI, VUNI, VNNI, EVUNI, and EVNNI ports. Pay attention to the port
numbers already in use. When you add a port, you must specify a port number that is unique on the
PXM1E card. For example, if port number 2 is assigned to line 2.1 (bay 2, line 1), you cannot use port
2 on any other line on that PXM1E card.