Configuring the OC3/STM-1 UNI Module
123
2
Select the appropriate numbers and enter the desired
Congestion On
and
Congestion Off
thresholds for the priority queues you want to configure. The
ranges are
51%-100%
for
Congestion On
and
0% to 50%
for
Congestion Off
.
You cannot set congestion thresholds for Queue 0, which is the highest priority
serviced module. This ensures that the traffic passing through Queue 0 is
preserved and treated with highest priority.
The congestion settings indicate the threshold level of cell buffers.
n
When the congestion level of the cell buffer for a particular queue reaches the
Congestion On
threshold, a congestion state is declared.
n
When the congestion level falls back to the
Congestion Off
threshold, the
congestion state is cleared.
n
When the congestion state is set to
on
, Early Packet Discard (EPD) is initiated
until Congestion State is set to
Off.
For example, if you set the
Congestion On
and
Congestion Off
thresholds for a
queue to 90 and 45 respectively, a congestion state would be declared when the
cell buffer is 90% full and cleared when the cell buffer is 45% full.
The
Congestion On
and
Congestion Off
settings are on a per queue basis, but
once you set the congestion thresholds for a particular queue, those settings are
used for that queue for all cards.
Configuring the
OC3/STM-1 UNI
Module
Configuring the OC3/STM-1 UNI module involves the following tasks:
n
Configuring the card
n
Configuring the virtual interfaces
To configure the OC3/STM-1 UNI module, follow these steps:
1
From the List Card menu, select the slot number corresponding to the OC3/STM-1
UNI module to display the OC3/STM-1 Configuration menu, shown in Figure 88.
Figure 88
OC3/STM-1 UNI Configuration Menu
Summary of Contents for 3C63100-AC-C - PathBuilder S600...
Page 8: ...INDEX 3COM CORPORATION LIMITED WARRANTY ...
Page 14: ...xiv CHAPTER SUPPLEMENTARY REGULATORY INFORMATION ...
Page 18: ...18 ABOUT THIS GUIDE ...
Page 28: ...28 CHAPTER 1 SYSTEM DESCRIPTION ...
Page 74: ...74 CHAPTER 3 GETTING STARTED ...
Page 230: ...230 INDEX ...
