Cisco ISE Software Configuration Guide - Page 97

random-detect dscp

Get Cisco ISE - Line Card ISE PDF manuals and user guides
UPC - 746320730097
View all Cisco ISE manuals
Add to My Manuals
Save this manual to your list of manuals

Page 97 highlights

Software Configuration of ATM ISE Line Cards for Cisco 12000 Series Routers random-detect dscp random-detect dscp To change the minimum and maximum cell thresholds for the differentiated services code point (DSCP) value, use the random-detect dscp command in interface configuration mode. To return the minimum and maximum packet thresholds to the default for the DSCP value, use the no form of this command. random-detect dscp dscpvalue min-threshold cells max-threshold cells [mark-probability-denominator] no random-detect dscp dscpvalue min-threshold max-threshold [mark-probability-denominator] Syntax Description dscpvalue min-threshold cells max-threshold mark-probability-denominator Specifies the DSCP value. The DSCP value can be a number from 0 to 63, or it can be one of the following keywords: ef, af11, af12, af13, af21, af22, af23, af31, af32, af33, af41, af42, af43, cs1, cs2, cs3, cs4, cs5, or cs7. Minimum threshold in number of cells. The value range of this argument is from 1 to 262,143. When the average queue length reaches the minimum threshold, Weighted Random Early Detection (WRED) randomly drops some packets with the specified DSCP value. On the 4-Port ATM ISE line card for the Cisco 12000 Series Router, the min-threshold and max-threshold values must be specified as a count of ATM cells. Maximum threshold in number of cells. The value range of this argument is from the value of the min-threshold argument to 262143. When the average queue length exceeds the maximum threshold, WRED drops all packets with the specified DSCP value. (Optional) Denominator for the fraction of packets dropped when the average queue depth is at the maximum threshold. For example, if the denominator is 512, one out of every 512 packets is dropped when the average queue is at the maximum threshold. The value range is from 1 to 32,768. Note For the 4-Port ATM ISE line card, the mark probability denominator is rounded to the nearest power of 2. Command Modes Interface configuration Command History Release 12.0(25)S 12.1(5)T Modification The cells keyword was added. This command was introduced. Cisco IOS Release 12.0(27)S 97

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
Software Configuration of ATM ISE Line Cards for Cisco 12000 Series Routers
random-detect dscp
97
Cisco IOS Release 12.0(27)S
random-detect dscp
To change the minimum and maximum cell thresholds for the differentiated services code point (DSCP)
value, use the
random-detect dscp
command in interface configuration mode. To return the minimum
and maximum packet thresholds to the default for the DSCP value, use the
no
form of this command.
random-detect dscp
dscpvalue min-threshold
cells
max-threshold
cells
[
mark-probability-denominator
]
no random-detect dscp
dscpvalue min-threshold max-threshold
[
mark-probability-denominator
]
Syntax Description
Command Modes
Interface configuration
Command History
dscpvalue
Specifies the DSCP value. The DSCP value can be a number from 0
to 63, or it can be one of the following keywords:
ef
,
af11
,
af12
,
af13
,
af21
,
af22
,
af23
,
af31
,
af32
,
af33
,
af41
,
af42
,
af43
,
cs1
,
cs2
,
cs3
,
cs4
,
cs5
, or
cs7
.
min-threshold
Minimum threshold in number of cells. The value range of this
argument is from 1 to 262,143. When the average queue length
reaches the minimum threshold, Weighted Random Early Detection
(WRED) randomly drops some packets with the specified DSCP
value.
cells
On the 4-Port ATM ISE line card for the Cisco
12000 Series Router,
the
min-threshold
and
max-threshold
values must be specified as a
count of ATM cells.
max-threshold
Maximum threshold in number of cells. The value range of this
argument is from the value of the
min-threshold
argument to
262143. When the average queue length exceeds the maximum
threshold, WRED drops all packets with the specified DSCP value.
mark-probability-denominator
(Optional) Denominator for the fraction of packets dropped when
the average queue depth is at the maximum threshold. For example,
if the denominator is 512, one out of every 512 packets is dropped
when the average queue is at the maximum threshold. The value
range is from 1 to 32,768.
Note
For the 4-Port ATM ISE line card, the mark probability
denominator is rounded to the nearest power of 2.
Release
Modification
12.0(25)S
The
cells
keyword was added.
12.1(5)T
This command was introduced.