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Command or Action |
Purpose |
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enable
Example:
Router> enable
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Enables privileged EXEC mode.
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Enter your password if prompted.
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configure terminal
Example:
Router# configure terminal
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Enters global configuration mode. |
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ip access-list {standard | extended} access-list-name
Example:
Router(config)# ip access-list extended VOICE_AGG_LIST
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Defines an IP access list by name.
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OER supports only named access lists.
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The example creates an extended IP access list named VOICE_AGG_LIST.
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[sequence-number] permit udp source source-wildcard [operator [port]] destination destination-wildcard [operator [port]] [dscp dscp-value]
Example:
Router(config-ext-nacl)# permit udp any any range 3000 4000 dscp ef
|
Sets conditions to allow a packet to pass a named IP access list.
-
The example is configured to identify all UDP traffic ranging from a destination port number of 3000 to 4000 from any source where the DSCP bit is set to ef. This specific UDP traffic is to be optimized.
Note |
Only the syntax applicable to this task is shown. For more details, see the Cisco IOS IP Application Services Command Reference. |
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exit
Example:
Router(config-ext-nacl)# exit
|
(Optional) Exits extended access list configuration mode and returns to global configuration mode. |
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oer master
Example:
Router(config)# oer master
|
Enters OER master controller configuration mode to configure a Cisco router as a master controller and to configure master controller policy and timer settings. |
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learn
Example:
Router(config-oer-mc)# learn
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Enters OER Top Talker and Top Delay learning configuration mode to configure prefix learning policies and timers. |
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aggregation-type {bgp non-bgp prefix-length} prefix-mask
Example:
Router(config-oer-mc-learn)# aggregation-type prefix-length 24
|
(Optional) Configures a master controller to aggregate learned prefixes based on traffic flow type.
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The bgp keyword configures prefix aggregation based on entries in the BGP routing table. This keyword is used if BGP peering is enabled in the network.
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The non-bgp keyword configures learned prefix aggregation based on static routes. Entries in the BGP routing table are ignored when this keyword is entered.
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The prefix-length keyword configures aggregation based on the specified prefix length. The range of values that can be configured for this argument is a prefix mask from 1 to 32.
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If this command is not specified, the default aggregation is performed based on a /24 prefix length.
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The example configures prefix length aggregation.
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throughput
Example:
Router(config-oer-mc-learn)# throughput
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Configures the master controller to learn the top prefixes based on the highest outbound throughput.
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When this command is enabled, the master controller will learn the top prefixes across all border routers according to the highest outbound throughput.
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The example configures a master controller to learn the top prefixes based on highest outbound throughput.
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monitor-period minutes
Example:
Router(config-oer-mc-learn)# monitor-period 10
|
(Optional) Sets the time period that an OER master controller learns traffic flows.
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The default learning period is 5 minutes.
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The length of time between monitoring periods is configured with the periodic-interval command.
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The number of prefixes that are learned is configured with the prefixes command.
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The example sets the length of each monitoring period to 10 minutes.
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periodic-interval minutes
Example:
Router(config-oer-mc-learn)# periodic-interval 20
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(Optional) Sets the time interval between prefix learning periods.
-
By default, the interval between prefix learning periods is 120 minutes.
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The example sets the time interval between monitoring periods to 20 minutes.
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prefixes number
Example:
Router(config-oer-mc-learn)# prefixes 200
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(Optional) Sets the number of prefixes that the master controller will learn during the monitoring period.
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By default, the top 100 traffic flows are learned.
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The example configures a master controller to learn 200 prefixes during each monitoring period.
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traffic-class aggregate access-list access-list-name
Example:
Router(config-oer-mc-learn)# traffic-class aggregate access-list VOICE_AGG_LIST
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Supports aggregation of traffic classes during OER passive monitoring by using an extended access list.
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The example configures learned prefixes to be aggregated using the access list named VOICE_AGG_LIST that was created in Step 3 of this task.
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end
Example:
Router(config-oer-mc-learn)# end
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Exits OER Top Talker and Top Delay learning configuration mode, and returns to privileged EXEC mode. |
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show oer master
Example:
Router# show oer master
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(Optional) Displays information about the status of the OER-managed network; the output includes information about the master controller, the border routers, OER managed interfaces, and default and user-defined policy settings. |