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Cisco ATM Services (AXSM) Configuration Guide and Command Reference for MGX Switches

Release 5.2, Part Number OL-6484-01 Rev. C0, September 2005

Chapter 5 AXSM Command Reference

addport

Add Port—AXSM, AXSM-E, AXSM-32-E, AXSM-XG

A logical port is associated with a physical line. For a UNI or NNI, a line can support one logical port.

For a virtual NNI (VNNI), a line can support multiple logical ports.

The ranges of logical port numbers for each card is as specified in the Syntax Description and applies to

UNI, NNI, VUNI, and VNNI. For example, if a card supports 4 lines and all lines support UNI, the card

can have 4 logical ports whether their numbers are 1–4, 11–14, 57–60, and so on.

You can run the addport command only on an active line. See the description of the upln command.

Note The maximum number of logical ports for the entire node is 192, of which a maximum of 100 can be

signalling ports. System planners need to keep track of how many signaling ports exist because these

ports subtract from the total logical ports you can add.

Note If your are going to use card statistics on AXSM/A and AXSM/B cards, you must use cnfcdstat before

you add logical ports with the addport command. You cannot configure card statistics once you have

any logical ports added.

The information you specify with addport consists of the following items:

• Logical port number

• Bay number and line number

• Guaranteed rate and the maximum rate (currently the same for all interface types)

• Service class template (SCT) identifier for the port

• Type of interface (UNI, NNI, or VNNI)

• VPI for all connections on the port if the interface type is VNNI

The syntax is slightly different on the AXSM-XG than it is on the other AXSM cards. The AXSM-XG

has a path number parameter (path_num) instead of a bay.line parameter. Refer to the Channelizing a

Line section in the “Provisioning ATM Services” chapter of the is document for an explanation of

channelization and paths.

Using the Correct SCT

The switch supports a template approach to specifying parameters—an approach that is appropriate for

adding large numbers of connections. (You can customize an individual connection by modifying the

optional parameters through the addcon or cnfcon command.) The name of such a template is service

class template (SCT). These templates apply to the logical ports on the one hand and the card itself on

the other. You must specify an SCT for each logical port added through the addport command, and you

must specify an SCT for the card through the cnfcdsct command.

You can specify either the same or different SCTs for the port or card level. The system does not

automatically assign an SCT to a card when you specify an SCT for a port. For example, if you specify

SCT 2 for a port, the system does not assign SCT 2 to the card.

Cisco provides the following SCTs for the AXSM cards:

• For AXSM/A and AXSM/B, use SCT numbers 2, 3, 4, and 5.

• The AXSM-E and AXSM-XG requires SCT 4 or 5 (for ABR support) and cannot use SCT 2 or 3.

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