Cisco Systems MGX 8220 manual Frasm Connections

Chapter

FRASM Connections

Via the Command-Line Interface

Setting up a CESM connection is performed through the command-line interface (CLI). The procedure is to first add the line entering the add line command (addln) and then add and configure a channel entering the add channel (addchan) command. In the addchan command the channel number, the cell delay variation, the cell loss integration period, and buffer size are all specified. The command sequence is

1.addln <line #>

2.addchan “chan_num CDV CellLossIntegPeriod bufsize” chan_num -- value ranging from 16 to 19

16 - line 1, 17 - line 2, 18 - line 3, 19 - line 4

CDV -- Cell delay variation: Range 1000-65535 microseconds CellLossIntegPeriod -- Cell loss integration period:

Range 1000-65535 milliseconds

bufsize -- egress bufsize: Min value: 0.6*CDV-T1, 0.7*CDV-E1.

Max value: 65535, 0 to auto-compute

Example:

addln 1

addchan 16 10000 2500 0

FRASM Connections

Use the following procedures to setup an FRASM connection.

Via the Command-Line Interface

Setting up an FRASM connection is performed through the CLI. There are three basic types of connections.

•FRAS BNN connections, which are used to support connections that require an SNA/SDLC interface at one end of the connection and a Frame Relay interface at the other.

•STUN connections, which are used to support connections that require SNA/SDLC interfaces at both ends of the connection.

•BTUN connections, which are used to support connections that require 3270/bisynch interfaces at both ends of the connection.

For more information about these types of connections, see Chapter 4, “MGX 8220 Service Modules,” “Frame Relay Access Service Module” section.

For all three types of connections, the procedure is to first establish a physical line for the connection entering the add line command (addln) in which the physical back card port is specified and then to establish and configure ports on that line entering the add port (addport) command for each port.

In the addport command, the port number, line number, line speed, time slot, the port type, the encoding type, and the interface type are specified.

To complete the connection, additional commands are used that are specific to the type of connection being set up (FRAS BNN, STUN, or BSTUN).

	Cisco MGX 8220 Installation and Configuration
5-8	Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003