Cabletron Systems SmartSwitch 6500 User Manual page 96

Traffic Management Capabilities
•
Queue 5 — Unspecified Bit Rate (UBR)
If calls of a particular service class are being dropped on a particular port, use the
command to raise the port's queue Min threshold.
For example, to change both the Min and Max amounts of buffer space used for CBR calls on port
show porttrafficcongestion
Smart6500 # show porttrafficcongestion
PortNumber(ALL)
PortID QueueId ServiceClass MinIndex MinValue MaxIndex MaxValue
==============================================================================
7A3 1 CBR
7A3 2 RTVBR
7A3 3 NRTVBR
7A3 4 ABR
7A3 5 UBR
Smart6500 #
CBR on port is currently using 64 (
7a3
determine a new minimum threshold for CBR:
Smart6500 # show minmax
-----------------------------------------
MinIndex MinValue MaxIndex
-----------------------------------------
0 65536 0
1 32768 1
2 16384 2
3 8192 3
4 4096 4
5 2048 5
6 1024 6
7 512 7
8 256 8
9 128 9
10 64 10
11 32 11
12 16 12
13 8 13
14 4 14
15 0 15
Smart6500 #
From the table, we'll select 128 (
for port .
7a3
Smart6500 # set porttrafficcongestion
Port(ALL)
QueueNumber()
MinIndexNumber()
MaxIndexNumber()
7-6 SmartSwitch 6500 User Guide
command to determine the current minimum threshold level:
: 7a3
10 64 15
8 256 13
8 256 13
8 256 12
8 256 12
) as its minimum threshold. Use the
MinIndex 10
MaxValue
1048576
786432
524288
393216
262144
196608
131072
98304
65536
49152
32768
16384
8192
4096
2048
1024
). Use the set porttrafficcongestion command to assign this value to CBR
MinIndex 9
: 7a3
: 1
: 9
: 15
set porttrafficcongestion
1024
4096
4096
8192
8192
< Corresponds to CBR
< MinIndex for 128
< Specify the current MaxIndex
Traffic Management
, first enter the
7a3
command to
show minmax