User's Manual

Bucket
rate factor
This is a factor which determines the amount of tokens that need to be decremented
for each rate resource decrement (which is done periodically based on the Com-
mitted Information Rate).
Bucket
increment
Bucket increment (BI) indicates the amount of tokens that need to be added for
each byte of the incoming frame.
Account
discarded
frames
This parameter decides whether the ingress rate limiting logic accounts for frames
that have been discarded by the queue controller due to output port queue conges-
tion reasons. To account for all frames coming into a given port associated with
this rate resource, this parameter needs to be set.
Account filtered
frames
This parameter decides whether the ingress rate limiting logic accounts for frames
that have been discarded because of ingress policy violations. To account for all
frames coming into a given port associated with this rate resource, this parameter
needs to be set.
Management
non rate limit
When this parameter is disabled all frames that are classified by the ingress frame
classifier as MGMT frames would be considered to be ingress rate limited as far
as this particular ingress rate resource is concerned.
When this parameter is enabled, all frames that are classified as MGMT frames
by the ingress frame classifier would be excluded from the ingress rate limiting
calculations for this particular ingress rate resource.
SA non rate limit
When this parameter is enabled then SA ATU non rate limiting overrides can occur
on this port. An SA ATU non rate limiting override occurs when the source address
of a frame results in an ATU hit where the SA's MAC address returns an "Entry
state" with "static non rate limiting" value. When this occurs the frame will not be
ingress rate limited.
DA non rate limit
When this parameter is enabled then DA ATU non rate limiting overrides can occur
on this port. A DA ATU non rate limiting override occurs when the destination ad-
dress of a frame results in an ATU hit where the DA's MAC address returns an
"Entry state" with "static non rate limiting" value. When this occurs the frame will
not be ingress rate limited.
Accounted
bytes
This parameter determines which frame bytes are to be accounted for in the rate
resource's rate limiting calculations.
There are for different supported configurations:
Frame based configures the rate limiting resource to account for
the number of frames from a given port mapped to this rate re-
source.
frame
Preamble (8bytes) + Frame’s DA to CRC + IFG (inter frame gap,
12 bytes)
layer 1
Frame’s DA to CRClayer 2
Frame’s DA to CRC - 18 - 4(if the frame is tagged)layer 3
A frame is considered tagged if it is either Customer of Provider tagged during in-
gress.
EBS limit action
This parameter controls what kind of action is performed when the EBS limit has
been exceeded. Three types of action can be selected:
The frame that was received on the port will get discarded.drop
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