cdxQosIfRateLimitShpGranularity – CISCO-DOCS-EXT-MIB

Object

column r/w Enumeration

The width in milliseconds of each element in shaping 
delay queue, that is, the shaping granularity.
              
The shaping granularity is only applied to rate limit
algorithm: Token bucket algorithm with shaping. It 
controls how accurately the algorithm quantizes the shaping 
delay for a rate exceeded flow. If granularity is large, several 
shaping delay values will all be quantized to the same element 
in the queue resulting in less accurate rate shaping for the flows 
in bits/sec. On the other hand, choosing too small granularity 
causes more memory to be used for the shaper block, and also 
can cost a bit more in runtime overhead.
              
If the rate limit algorithm is not Token bucket algorithm with 
shaping, the value is always na(1) which is not applicable.
              
The enumerations for shaping granularity are:
  na(1): shaping granularity is not applied to the current 
         rate limit algorithm
   msec1(2): shaping granularity in 1 milliseconds 
   msec2(3): shaping granularity in 2 milliseconds 
   msec4(4): shaping granularity in 4 milliseconds 
   msec8(5): shaping granularity in 8 milliseconds 
  msec16(6): shaping granularity in 16 milliseconds  
              
The downstream shaping granularity is configurable and the
default value is msec4(4). Whenever the downstream rate limit 
algorithm is changed to Token bucket algorithm with shaping 
from other rate limit algorithm, the value will be reset to the 
default value. 
              
The upstream shaping granularity is not configurable and 
it is read-only value.

Context

MIB: CISCO-DOCS-EXT-MIB
OID: .1.3.6.1.4.1.9.9.116.1.1.2.1.4
Type: column
Access: readwrite
Status: current
Parent: cdxQosIfRateLimitEntry
Table: cdxQosIfRateLimitTable
Siblings: 3

Syntax

Enumeration

Values & Constraints

Enumerated Values

`1`	na
`2`	msec1
`3`	msec2
`4`	msec4
`5`	msec8
`6`	msec16

Related Objects

Sibling Objects

Object	Type	Syntax	OID
cdxQosIfRateLimitAlgm To ensure fairness, the CMTS will throttle the rate for bandwidth request (upstream)/packet sent (downstream) at which CMTS issues grants(upstream) or allow packet to be send(do…	column	Enumeration	`.1.3.6.1.4.1.9.9.116.1.1.2.1.1`
cdxQosIfRateLimitExpWt Weight for exponential moving average of loss rate for weighted excess packet discard algorithm to maintain. The higher value of the weight makes the algorithm more sensitive to …	column	Integer32	`.1.3.6.1.4.1.9.9.116.1.1.2.1.2`
cdxQosIfRateLimitShpMaxDelay The maximum shaping delay in milliseconds. That is, the maximum amount time of buffering the CMTS will allow for any rate exceeded flow. If the max buffering delay is large, th…	column	Enumeration	`.1.3.6.1.4.1.9.9.116.1.1.2.1.3`