Specifications

5-13
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
addcon
Local-Only Parameters
The parameters CDVT, stats enable, (specified using -cdvt, -stat) are significant only at the endpoint
where you enter them. Therefore, they can be different at each end of the connection. Note that the cc
parameter must be enabled at both ends or disabled at both ends.
Interoperability With Other Switches
Cisco MGX 8850 PXM1E-based and PXM45-based switches support interoperability with nodes
manufactured by other vendors or Cisco ATM WAN switches other than the MGX and BPX families of
switches. The other Cisco devices include the LS 1010 switch, DSLAMs such as the Cisco 6160 and
Cisco 6250 products, and feeder nodes.
The mechanism that supports this interoperability is the single-ended provisioning of a connection. With
single-ended provisioning, you specify both endpoints at the master endpoint only, and the slave
endpoint is called a non persistent slave endpoint.
In single-ended provisioning, the slave endpoint is not actually provisioned on the far-end service
module. The slave endpoint exists only on the PNNI controller on the local node. The slave endpoint is
cleared when the connection is derouted by either the dncon command or the clrspvcnonpers command
(the delcon command does not apply to nonpersistent endpoints).
Specifying a Single-ended Connection
A single-ended connection can be added only through the addcon command. CWM currently does not
support addition of single-ended connections but only shows these connections.
The single-ended connection is specified at the master endpoint only. The specific addcon parameters
that create a single-ended connection are as follows:
• mastership is 1 (for master endpoint).
• -slave is followed by the NSAP address of the slave endpoint, which consists of the nodal SPVC
prefix, the port ID, the VPI, and the VCI.
• -slavepersflag is followed by “1” to indicate a non-persistent slave endpoint.
When you add a dual-ended connection, command entry for the slave endpoint automatically returns the
connection identifier for the slave endpoint. For single-ended connections, you must already have the
connection identifier for the non-persistent, slave endpoint. How you get the slave endpoint ID depends
on the vendor of the switch, as follows:
• For a Cisco MGX 8800-series or MGX 8900-series switch, use the dspspvcprfx command at the
slave-end switch to get the SPVC prefix for the node. Concatenate this prefix to the port ID, VPI,
and VCI to form the total endpoint address.
• For other Cisco ATM WAN switches, such as the LS 1010 switch, use whatever means that switch
supports for obtaining the endpoint ID.
• For non-Cisco ATM WAN switches, check the manufacturer’s documentation or confer with the
network administrator regarding how to obtain the endpoint information.
To delete a single-ended connection, use the delcon command at the master endpoint. To de-route a
single-ended connection, use the clrspvcnonpers command at the slave endpoint.
Overriding a Slave-end SVC or SVP
A routed SVC may have a VPI and VCI at the slave-end port that is needed by an incoming, single-ended
connection. Because an existing SVC can take the next available VPI/VCI on the port, you can enable
an override of the VPI/VCI. To override an SVC or SVP use the cnfsvcoverride command.