Cisco WS-SUP32-GE-3B Software Configuration Guide - Page 598

Using a Named Aggregate Policer, Configuring a Per-Interface Policer, mask src-only, mask full-flow

Page 598 highlights

Configuring PFC QoS Chapter 38 Configuring PFC QoS Using a Named Aggregate Policer To use a named aggregate policer, perform this task: Command Router(config-pmap-c)# police aggregate aggregate_name Router(config-pmap-c)# no police aggregate aggregate_name Purpose Configures the policy map class to use a previously defined named aggregate policer. Clears use of the named aggregate policer. Configuring a Per-Interface Policer To configure a per-interface policer, perform this task: Command Router(config-pmap-c)# police [flow [mask {src-only | dest-only | full-flow}]] bits_per_second normal_burst_bytes [maximum_burst_bytes] [pir peak_rate_bps] [[[conform-action {drop | set-dscp-transmit dscp_value | set-prec-transmit ip_precedence_value | transmit}] exceed-action {drop | policed-dscp | transmit}] violate-action {drop | policed-dscp | transmit}] Router(config-pmap-c)# no police [flow [mask {src-only | dest-only | full-flow}]] bits_per_second normal_burst_bytes [maximum_burst_bytes] [pir peak_rate_bps] [[[conform-action {drop | set-dscp-transmit dscp_value | set-prec-transmit ip_precedence_value | transmit}] exceed-action {drop | policed-dscp | transmit}] violate-action {drop | policed-dscp | transmit}] Purpose Creates a per-interface policer and configures the policy-map class to use it. Deletes the per-interface policer from the policy-map class. When configuring a per-interface policer, note the following information: • With a PFC3B, when you apply both ingress policing and egress policing to the same traffic, both the input policy and the output policy must either mark down traffic or drop traffic. PFC QoS does not support ingress markdown with egress drop or ingress drop with egress markdown. • You can apply aggregate and microflow policers to IPv6 traffic. • With a PFC3B, policing uses the Layer 2 frame size. • See the "PFC QoS Configuration Guidelines and Restrictions" section on page 38-39 for information about rate and burst size granularity. • You can enter the flow keyword to define a microflow policer (you cannot apply microflow policing to ARP traffic). When configuring a microflow policer, note the following information: - With a PFC3B, you can enter the mask src-only keywords to base flow identification only on source addresses, which applies the microflow policer to all traffic from each source address. PFC QoS supports the mask src-only keywords for both IP traffic and MAC traffic. - With a PFC3B, you can enter the mask dest-only keywords to base flow identification only on destination addresses, which applies the microflow policer to all traffic to each source address. PFC QoS supports the mask dest-only keywords for both IP traffic and MAC traffic. - By default and with the mask full-flow keywords, PFC QoS bases IP flow identification on source IP address, destination IP address, the Layer 3 protocol, and Layer 4 port numbers. 38-64 Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY OL-11439-03

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38-64
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
OL-11439-03
Chapter 38
Configuring PFC QoS
Configuring PFC QoS
Using a Named Aggregate Policer
To use a named aggregate policer, perform this task:
Configuring a Per-Interface Policer
To configure a per-interface policer, perform this task:
When configuring a per-interface policer, note the following information:
With a PFC3B, when you apply both ingress policing and egress policing to the same traffic, both
the input policy and the output policy must either mark down traffic or drop traffic. PFC QoS does
not support ingress markdown with egress drop or ingress drop with egress markdown.
You can apply aggregate and microflow policers to IPv6 traffic.
With a PFC3B, policing uses the Layer 2 frame size.
See the
“PFC QoS Configuration Guidelines and Restrictions” section on page 38-39
for
information about rate and burst size granularity.
You can enter the
flow
keyword to define a microflow policer (you cannot apply microflow policing
to ARP traffic). When configuring a microflow policer, note the following information:
With a PFC3B, you can enter the
mask src-only
keywords to base flow identification only on
source addresses, which applies the microflow policer to all traffic from each source address.
PFC QoS supports the
mask src-only
keywords for both IP traffic and MAC traffic.
With a PFC3B, you can enter the
mask dest-only
keywords to base flow identification only on
destination addresses, which applies the microflow policer to all traffic to each source address.
PFC QoS supports the
mask dest-only
keywords for both IP traffic and MAC traffic.
By default and with the
mask full-flow
keywords, PFC QoS bases IP flow identification on
source IP address, destination IP address, the Layer 3 protocol, and Layer 4 port numbers.
Command
Purpose
Router(config-pmap-c)#
police aggregate
aggregate_name
Configures the policy map class to use a previously defined
named aggregate policer.
Router(config-pmap-c)#
no police aggregate
aggregate_name
Clears use of the named aggregate policer.
Command
Purpose
Router(config-pmap-c)#
police
[
flow
[
mask
{
src-only
|
dest-only
|
full-flow
}]]
bits_per_second
normal_burst_bytes
[
maximum_burst_bytes
] [
pir
peak_rate_bps
] [[[
conform-action
{
drop
|
set-dscp-transmit
dscp_value
|
set-prec-transmit
ip_precedence_value
|
transmit
}]
exceed-action
{
drop
|
policed-dscp
|
transmit
}]
violate-action
{
drop
|
policed-dscp
|
transmit
}]
Creates a per-interface policer and configures the policy-map
class to use it.
Router(config-pmap-c)#
no police
[
flow
[
mask
{
src-only
|
dest-only
|
full-flow
}]]
bits_per_second
normal_burst_bytes
[
maximum_burst_bytes
] [
pir
peak_rate_bps
] [[[
conform-action
{
drop
|
set-dscp-transmit
dscp_value
|
set-prec-transmit
ip_precedence_value
|
transmit
}]
exceed-action
{
drop
|
policed-dscp
|
transmit
}]
violate-action
{
drop
|
policed-dscp
|
transmit
}]
Deletes the per-interface policer from the policy-map class.