Understanding PFC QoS Statistics Data Export
The PFC QoS statistics data export feature generates per-LAN-port and per-aggregate policer utilization information and forwards this information in UDP packets to traffic monitoring, planning, or accounting applications. You can enable PFC QoS statistics data export on a per-LAN-port or on a per-aggregate policer basis. The statistics data generated per port consists of counts of the input and output packets and bytes. The aggregate policer statistics consist of counts of allowed packets and counts of packets exceeding the policed rate.
The PFC QoS statistics data collection occurs periodically at a fixed interval, but you can configure the interval at which the data is exported. PFC QoS statistics collection is enabled by default, and the data export feature is disabled by default for all ports and all aggregate policers configured on the Cisco 7600 series router.
Note The PFC QoS statistics data export feature is completely separate from NetFlow Data Export and does not interact with it.
Configuring PFC QoS Statistics Data Export
These sections describe how to configure PFC QoS statistics data export:
Enabling PFC QoS Statistics Data Export Globally
To enable PFC QoS statistics data export globally, perform this task:
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Step 1 |
Router(config)# mls qos statistics-export |
Enables PFC QoS statistics data export globally. |
Router(config)# no mls qos statistics-export |
Disables PFC QoS statistics data export globally. |
Step 2 |
Router(config)# end |
Exits configuration mode. |
Step 3 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
This example shows how to enable PFC QoS statistics data export globally and verify the configuration:
Router# configure terminal
Router(config)# mls qos statistics-export
% Warning: Export destination not set.
% Use 'mls qos statistics-export destination' command to configure the export destination
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 300 seconds
Export Destination : Not configured
Note You must enable PFC QoS statistics data export globally for other PFC QoS statistics data export configuration to take effect.
Enabling PFC QoS Statistics Data Export for a Port
To enable PFC QoS statistics data export for a port, perform this task:
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Step 1 |
Router(config)# interface type slot/port |
Selects the interface to configure. |
Step 2 |
Router(config-if)# mls qos statistics-export |
Enables PFC QoS statistics data export for the port. |
Router(config-if)# no mls qos statistics-export |
Disables PFC QoS statistics data export for the port. |
Step 3 |
Router(config)# end |
Exits configuration mode. |
Step 4 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
This example shows how to enable PFC QoS statistics data export on FastEthernet port 5/24 and verify the configuration:
Router# configure terminal
Router(config)# interface fastethernet 5/24
Router(config-if)# mls qos statistics-export
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 300 seconds
Export Destination : Not configured
QoS Statistics Data Export is enabled on following ports:
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When enabled on a port, PFC QoS statistics data export contains the following fields, separated by the delimiter character:
- Export type (“1” for a port)
- Slot/port
- Number of ingress packets
- Number of ingress bytes
- Number of egress packets
- Number of egress bytes
- Time stamp
Enabling PFC QoS Statistics Data Export for a Named Aggregate Policer
To enable PFC QoS statistics data export for a named aggregate policer, perform this task:
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Step 1 |
Router(config)# mls qos statistics-export aggregate-policer aggregate_policer_name |
Enables PFC QoS statistics data export for a named aggregate policer. |
Router(config)# no mls qos statistics-export aggregate-policer aggregate_policer_name |
Disables PFC QoS statistics data export for a named aggregate policer. |
Step 2 |
Router(config)# end |
Exits configuration mode. |
Step 3 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
This example shows how to enable PFC QoS statistics data export for an aggregate policer named aggr1M and verify the configuration:
Router# configure terminal
Router(config)# mls qos statistics-export aggregate-policer aggr1M
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 300 seconds
Export Destination : Not configured
QoS Statistics Data Export is enabled on following ports:
---------------------------------------------------------
QoS Statistics Data export is enabled on following shared aggregate policers:
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When enabled for a named aggregate policer, PFC QoS statistics data export contains the following fields, separated by the delimiter character:
- Export type (“3” for an aggregate policer)
- Aggregate policer name
- Direction (“in”)
- PFC or DFC slot number
- Number of in-profile bytes
- Number of bytes that exceed the CIR
- Number of bytes that exceed the PIR
- Time stamp
Enabling PFC QoS Statistics Data Export for a Class Map
To enable PFC QoS statistics data export for a class map, perform this task:
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Step 1 |
Router(config)# mls qos statistics-export class-map classmap_name |
Enables PFC QoS statistics data export for a class map. |
Router(config)# no mls qos statistics-export class-map classmap_name |
Disables PFC QoS statistics data export for a class map. |
Step 2 |
Router(config)# end |
Exits configuration mode. |
Step 3 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
This example shows how to enable PFC QoS statistics data export for a class map named class3 and verify the configuration:
Router# configure terminal
Router(config)# mls qos statistics-export class-map class3
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 300 seconds
Export Destination : Not configured
QoS Statistics Data Export is enabled on following ports:
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QoS Statistics Data export is enabled on following shared aggregate policers:
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QoS Statistics Data Export is enabled on following class-maps:
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When enabled for a class map, PFC QoS statistics data export contains the following fields, separated by the delimiter character:
- For data from a physical port:
– Export type (“4” for a classmap and port)
– Class map name
– Direction (“in”)
– Slot/port
– Number of in-profile bytes
– Number of bytes that exceed the CIR
– Number of bytes that exceed the PIR
– Time stamp
- For data from a VLAN interface:
– Export type (“5” for a class map and VLAN)
– Classmap name
– Direction (“in”)
– PFC or DFC slot number
– VLAN ID
– Number of in-profile bytes
– Number of bytes that exceed the CIR
– Number of bytes that exceed the PIR
– Time stamp
- For data from a port channel interface:
– Export type (“6” for a class map and port channel)
– Class map name
– Direction (“in”)
– PFC or DFC slot number
– Port channel ID
– Number of in-profile bytes
– Number of bytes that exceed the CIR
– Number of bytes that exceed the PIR
– Time stamp
Setting the PFC QoS Statistics Data Export Time Interval
To set the time interval for the PFC QoS statistics data export, perform this task:
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Step 1 |
Router(config)# mls qos statistics-export interval interval_in_seconds |
Sets the time interval for the PFC QoS statistics data export. Note The interval needs to be short enough to avoid counter wraparound with the activity in your configuration, but because exporting PFC QoS statistic creates a significant load on the router, be careful when decreasing the interval. |
Router(config)# no mls qos statistics-export interval interval_in_seconds |
Reverts to the default time interval for the PFC QoS statistics data export. |
Step 2 |
Router(config)# end |
Exits configuration mode. |
Step 3 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
This example shows how to set the PFC QoS statistics data export interval and verify the configuration:
Router# configure terminal
Router(config)# mls qos statistics-export interval 250
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 250 seconds
Export Destination : Not configured
QoS Statistics Data Export is enabled on following ports:
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QoS Statistics Data export is enabled on following shared aggregate policers:
-----------------------------------------------------------------------------
QoS Statistics Data Export is enabled on following class-maps:
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Configuring PFC QoS Statistics Data Export Destination Host and UDP Port
To configure the PFC QoS statistics data export destination host and UDP port number, perform this task:
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Step 1 |
Router(config)# mls qos statistics-export destination { host_name | host_ip_address } { port port_number | syslog [ facility facility_name ] [ severity severity_value ]} |
Configures the PFC QoS statistics data export destination host and UDP port number. |
Router(config)# no mls qos statistics-export destination |
Clears configured values. |
Step 2 |
Router(config)# end |
Exits configuration mode. |
Step 3 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
Note When the PFC QoS data export destination is a syslog server, the exported data is prefaced with a syslog header.
Table 49-2 lists the supported PFC QoS data export facility and severity parameter values.
Table 49-2 Supported PFC QoS Data Export Facility Parameter Values
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kern |
kernel messages |
cron |
cron/at subsystem |
user |
random user-level messages |
local0 |
reserved for local use |
mail |
mail system |
local1 |
reserved for local use |
daemon |
system daemons |
local2 |
reserved for local use |
auth |
security/authentication messages |
local3 |
reserved for local use |
syslog |
internal syslogd messages |
local4 |
reserved for local use |
lpr |
line printer subsytem |
local5 |
reserved for local use |
news |
netnews subsytem |
local6 |
reserved for local use |
uucp |
uucp subsystem |
local7 |
reserved for local use |
Table 49-3 lists the supported PFC QoS data export severity parameter values.
Table 49-3 Supported PFC QoS Data Export Severity Parameter Values
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emerg |
0 |
system is unusable |
alert |
1 |
action must be taken immediately |
crit |
2 |
critical conditions |
err |
3 |
error conditions |
warning |
4 |
warning conditions |
notice |
5 |
normal but significant condition |
info |
6 |
informational |
debug |
7 |
debug-level messages |
This example shows how to configure 172.20.52.3 as the destination host and syslog as the UDP port number and verify the configuration:
Router# configure terminal
Router(config)# mls qos statistics-export destination 172.20.52.3 syslog
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 250 seconds
Export Destination : 172.20.52.3, UDP port 514 Facility local6, Severity debug
QoS Statistics Data Export is enabled on following ports:
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QoS Statistics Data export is enabled on following shared aggregate policers:
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QoS Statistics Data Export is enabled on following class-maps:
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Setting the PFC QoS Statistics Data Export Field Delimiter
To set the PFC QoS statistics data export field delimiter, perform this task:
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Step 1 |
Router(config)# mls qos statistics-export delimiter delimiter_character |
Sets the PFC QoS statistics data export field delimiter. |
Router(config)# no mls qos statistics-export delimiter |
Reverts to the default PFC QoS statistics data export field delimiter |
Step 2 |
Router(config)# end |
Exits configuration mode. |
Step 3 |
Router# show mls qos statistics-export info |
Verifies the configuration. |
This example shows how to set the PFC QoS statistics data export field delimiter and verify the configuration:
Router# configure terminal
Router(config)# mls qos statistics-export delimiter,
Router# show mls qos statistics-export info
QoS Statistics Data Export Status and Configuration information
---------------------------------------------------------------
Export Interval : 250 seconds
Export Destination : 172.20.52.3, UDP port 514 Facility local6, Severity debug
QoS Statistics Data Export is enabled on following ports:
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QoS Statistics Data export is enabled on following shared aggregate policers:
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QoS Statistics Data Export is enabled on following class-maps:
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