Cisco Systems 8600 Series manual Ibs

ATM Connection Configuration

Table 7-4	Connection Parameter Descriptions (Continued)
Parameter	Description

Nrm (ATM Forum TM 4.0 term), BXM only.

Nrm

Maximum number of cells a source may send for each forward RM cell, i.e. an RM cell must be sent for every Nrm-1 data cells

FRTT (ATM Forum TM 4.0 term),	Fixed Round Trip Time: the sum of the fixed and propagation delays from the source to
BXM only.	a destination and back
TBE (ATM Forum TM 4.0 term),	Transient Buffer Exposure:
BXM only.	The negotiated number of cells that the network would like to limit the source to
	sending during start-up periods, before the first RM-cell returns.
IBS	Initial Burst Size
Trunk cell routing restriction (Y/N)	The default (Y) restricts ATM connection routes to include only ATM trunks. Selecting
[Y]	(N) allows the network to route these connections over non-ATM trunks (e.g.,
	Fastpacket trunks).

7-12Cisco BPX 8600 Series Reference