3Com MSR 50, MSR 30 manual Isdn bch-local-manage, 569

569

SPID timer: 30 seconds

SPID resend: 1 times

Table 98 Description on the fields of the display isdn spid interface command

Field	Description
SPID Type	SPID Type, which can be NIT, STATIC (having only the L3 initialization
	process), or AUTO (including both the negotiation and the L3
	initialization)
SPID B1	SPID value of the BRI interface B1 channel.
SPID Num	SPID value of the BRI interface. It can be a static configuration or the
	result of a dynamic negotiation, all depending on the specified SPID
	Type.
Neg State	Negotiation state of the SPID, which can be SPID_UNASSIGNED,
	ASSIGN_AWAITING_SPID, SPID_ASSIGNED,
	ASSIGN_AWAITING_CALL_CLEAR.
Init State	Initialization state of the SPID, which can be INIT_NULL, INIT_IND,
	INIT_PROCEEDING, INIT_END, INIT_AWAITING_CALL_CLEAR.
SPID B2	SPID value of the BRI interface B2 channel.
SPID timer	Duration of the timer TSPID
SPID resend	SPID message retransmission times

isdn bch-local-manage

Syntax isdn bch-local-manage [ exclusive ]

undo isdn bch-local-manage

View ISDN interface view

Parameter exclusive: Exclusive local management mode for ISDN B channels. When the B channel indicated by the exchange is inconsistent with the one required by the local end, call failure occurs.

Description Use the isdn bch-local-managecommand to enable local ISDN B channel management.

Use the undo isdn bch-local-managecommand to disable the setting.

By default, the local ISDN B channel management is not enabled but is in the charge of ISDN switch.

It is very important to put appropriate control on the B channels used for calls in process, especially in the PRI mode. Proper channel management can improve call efficiency and reduce call loss. Normally, the centralized B channel management provided by exchanges can work well. For this reason, you are recommended to adopt the management function provided by exchanges in most cases, despite the ISDN module can provide the channel management function as well.

Configured with isdn bch-local-managecommand, the router operates in local B-channel management mode to select available B channels for calls. Despite this, the connected exchange has higher priority in B channel selection. If the B channel