Cisco BPX-BXM-155-8DX Installation And Configuration Manual page 319

Chapter 21 Configuring ATM Connections
Table 21-7 Connection Parameter Descriptions (continued)
Parameter
VSVD
FCES (Flow Control External
Segments)
SCR
MBS
Policing
VC QDepth
CLP Hi
CLP Lo/EPD
EFCI
ICR
ADTF (ATM Forum TM 4.0
term)
Trm (ATM Forum TM 4.0 term) An upper bound on the time between forward RM-cells for an active source, i.e., RM
RIF (ATM Forum TM 4.0 term)
RDF (ATM Forum TM 4.0 term) Rate Decrease Factor:
Nrm (ATM Forum TM 4.0 term),
BXM only.
FRTT (ATM Forum TM 4.0
term),
BXM only.
TBE (ATM Forum TM 4.0 term),
BXM only.
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Description
Virtual Source Virtual Destination:
(see Meaning of VSVD and Flow Control External Segments, Figure 21-9)
(see Meaning of VSVD and Flow Control External Segments, Figure 21-9)
Sustainable Cell Rate:
Long term limit on the rate a connection can sustain
Maximum Burst Size:
Maximum number of cells which may burst at the PCR but still be compliant. Used
to determine the Burst Tolerance (BT) which controls the time scale over which the
SCR is policed
(see definitions of Traffic Policing, Table 21-5)
VC Queue Depth
Cell Loss Priority Hi threshold (% of VC QMax)
Cell Loss Priority Low threshold (% of VC QMax)/Early Packet Discard. If AAL5
FBTC = yes, then for the BXM card this is the EPD threshold setting.
Explicit Forward Congestion Indication threshold (% of VC QMax)
Initial Cell Rate:
The rate at which a source should send initially and after an idle period
The Allowed-Cell-Rate Decrease Factor:
Time permitted between sending RM-cells before the rate is decreased to ICR
cell must be sent at least every Trm msec
Rate Increase Factor:
Controls the amount by which the cell transmission rate may increase upon receipt
of an RM cell
Controls the amount by which the cell transmission rate may decrease upon receipt
of an RM cell
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
Fixed Round Trip Time: the sum of the fixed and propagation delays from the source
to a destination and back
Transient Buffer Exposure:
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.
Cisco BPX 8600 Series Installation and Configuration
ATM Connection Configuration
21-27