Chapter 5 Configuring the Interfaces Using the Console
Interim Interswitch Signaling Protocol (IISP) Interface
5-10
255-700-166
PacketStar
®
PSAX 6-Port DS1 IMA Module User Guide
, Issue 1
Release 7.0
UPC Support
Usage parameter control (policing) determines if traffic con-
trol is performing to negotiated PCR, SCR, or MBS. This fea-
ture is supported on these modules:
• OC-12c/STM-4c MM/SM 1+1 APS/MSP
• OC-3c 1+1 APS SM/MM
• STM-1 1+1 MSP SM/MM
• Channelized DS3-to-DS0
• High Density E1
• Medium Density DS1
Default:
Disabled
UPC Support is disabled.
Note:
If UPC Support is disabled, traffic policing cannot be
supported on any VC.
Enabled
UPC Support is enabled, providing traffic policing support for
all VCs.
UBR Load
Balancing
Default:
Disabled
Balance UBR traffic load among parallel links.
UBR Load Balancing is disabled.
Note:
Virtual interfaces do not support UBR Load
Balancing.
Enabled
UBR Load Balancing is enabled.
SSCOP Rx Wnd
Size
The service-specific connection-oriented protocol (SSCOP)
layer. This window shows the total number of packets that
must be acknowledged by the receiving side before more
packets are sent from the transmitting side.
Default: 32
Range: 8–256
On the receiving side, values must be equal to or greater than
the values for the transmit side for fastest transmission rates.
Traffic Shaping
An input cell selection algorithm (leaky bucket) that smooths
bursts of input traffic.
Available on these modules only:
STM-1 Multi-Mode and Single-Mode,
OC-3c Multi-Mode and Single-Mode
Default:
Disabled
Disables the feature.
Enabled
Note:
Enables the feature.
This feature must be enabled if using rate shaping prior to
egress from an ATM trunk port on the OC-3c APS or the
STM-1 MSP modules
Interface Statistics Panel (display only)
[Valid Cells
Rcvd]
Number of valid cells received since the statistics were last
reset.
[Errored Cells
Rcvd]
Number of errored cells received since the statistics were last
reset.
Table 5-2. Field Values for the ATM IISP Interface Configuration Window
Field Name
Values
Description