Patton electronic SmartNode 4110 Series manual Configuring Q.931 encapsulation, Debugging Isdn

SmartWare Software Configuration Guide 19 • ISDN configuration

Step

Command Purpose

6

node(q931)[slot/port]# bchan-number- order ascending

or

node(q931)[slot/port]#bchan-number- order ascending-cyclic

or

node(q931)[slot/port]#bchan-number- order descending

or

node(q931)[slot/port]#bchan-number- order descending-cyclic

Specify B-channel allocation strategy (Default: ascending)

The numbering mode defines how the avail- able time slots are filled. The cyclic modes use a “round-robin” implementation. The “up” and “down” modes define whether the time slots are filled at the lowest or highest avail- able slot, i.e. up means that always the lowest available slot is used, down uses always the highest available slot.

Configuring Q.931 encapsulation

This command specifies the next protocol or application has to be attached to the Q.931 protocol. In case of ISDN this will always be the CC-ISDN (Call Control) application. For this case also a binding to a pre-created ISDN interface is necessary. For information about creation and configuration of an ISDN interface please see Chapter 34, “ISDN interface configuration” on page 390.

Mode: q931

Step	Command	Purpose
1	node(q931)[slot/port]#[no] encapsula-	Enables/Disables the next application or pro-
	tion cc-isdn	tocol. Currently only CC-ISDN is supported.
2	node(q931)[slot/port]#[no] bind inter-	Bind the Q.931 protocol to an existing call
	face if-name	control interface.

Debugging ISDN

For the investigation of possible Q.921/Q.931 protocol problems or to get call signaling information, there exists a debug command with the options ‘event’ and ‘error’. The command can be applied to the port on which ISDN is configured and has a further option to switch on or off a specific ISDN layer. In addition, the ‘show port isdn’ command can be used to printout information about the current state and statistic informa- tion about received and transmitted frames.

Mode: Operator execution

Step

1

Command	Purpose
node#debug isdn {event error} slot port	Enables/Disables the ISDN event/error moni-
{all layer2 layer3}	tor

ISDN configuration task list 222