|
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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oer master
Example:
Router(config)# oer master
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Enters OER master controller configuration mode to configure a router as a master controller.
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A master controller and border router process can be enabled on the same router (for example, in a network that has a single router with two exit links to different service providers).
Note |
Only the syntax used in this context is displayed. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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mode select-exit {best | good}
Example:
Router(config-oer-mc)# mode select-exit best
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Configures exit selection settings.
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Use the select-exit keyword to configure the master controller to select either the best available exit when the bestkeyword is entered or the first in-policy exit when the good keyword is entered.
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In this example, OER will select the best available exit.
Note |
Only the syntax relevant to this task is displayed. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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resolve range priority value
Example:
Router(config-oer-mc)# resolve range priority 1
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Sets policy priority or resolves policy conflicts.
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This command is used to set the priorities when multiple policies are configured for the same prefix. When this command is configured, the policy with the highest priority will be selected to determine the policy decision.
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The priority keyword is used to specify the priority value. Setting the number 1 assigns the highest priority to a policy. Setting the number 10 assigns the lowest priority.
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Each policy must be assigned a different priority number.
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In this example, the priority for range policies is set to 1.
Note |
Only the syntax relevant to this task is displayed. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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resolve utilization priority value variance percentage
Example:
Router(config-oer-mc)# resolve utilization priority 2 variance 20
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Sets policy priority or resolves policy conflicts.
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This command is used to set the priorities when multiple policies are configured for the same prefix. When this command is configured, the policy with the highest priority will be selected to determine the policy decision.
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The priority keyword is used to specify the priority value. Setting the number 1 assigns the highest priority to a policy. Setting the number 10 assigns the lowest priority.
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Each policy must be assigned a different priority number.
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The variance keyword is used to set an allowable variance for a user-defined policy. This keyword configures the allowable percentage that an exit link or prefix can vary from the user-defined policy value and still be considered equivalent.
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In this example, the priority for utilization policies is set to 2 with a 20 percent variance.
Note |
Only the syntax relevant to this task is displayed. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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no resolve delay
Example:
Router(config-oer-mc)# no resolve delay
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Disables any priority for delay performance policies.
Note |
Only the syntax relevant to this task is displayed. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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no resolve loss
Example:
Router(config-oer-mc)# no resolve loss
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Disables any priority for loss performance policies.
Note |
Only the syntax relevant to this task is displayed. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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max range receive percent percentage
Example:
Router(config-oer-mc)# max range receive percent 20
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Specifies the upper limit of the inbound (receive) traffic utilization range between all the entrance links on the border routers.
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The percent keyword and percentage argument are used to specify the range percentage.
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In this example, the inbound traffic utilization range between all the entrance links on the border routers must be within 20 percent.
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border ip-address [key-chain key-chain-name]
Example:
Router(config-oer-mc)# border 10.1.1.2 key-chain border1_OER
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Enters OER-managed border router configuration mode to establish communication with a border router.
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An IP address is configured to identify the border router.
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At least one border router must be specified to create an OER-managed network. A maximum of ten border routers can be controlled by a single master controller.
Note |
The key-chain keyword and key-chain-name argument must be entered when a border router is initially configured. However, this keyword is optional when reconfiguring an existing border router. |
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interface type number external
Example:
Router(config-oer-mc-br)# interface Ethernet 1/0 external
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Configures a border router interface as an OER-managed external interface.
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External interfaces are used to forward traffic and for active monitoring.
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A minimum of two external border router interfaces are required in an OER-managed network. At least one external interface must be configured on each border router. A maximum of 20 external interfaces can be controlled by single master controller.
Tip |
Configuring an interface as an OER-managed external interface on a router enters OER border exit interface configuration mode. In this mode, you can configure maximum link utilization or cost-based optimization for the interface. |
Note |
Entering the interface command without the external or internal keyword places the router in global configuration mode and not OER border exit configuration mode. The no form of this command should be applied carefully so that active interfaces are not removed from the router configuration. |
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maximum utilization receive {absolute kbps | percent percentage}
Example:
Router(config-oer-mc-br-if)# maximum utilization receive percent 90
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Sets the maximum inbound (receive) traffic utilization for the configured OER-managed link interface.
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Use the absolute keyword and kbps argument to specify the absolute value, in kilobytes per second (kbps), of the throughput for all the entrance links.
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Use the percent keyword and percentage argument to specify the maximum utilization as a percentage of bandwidth received by all the entrance links.
-
In this example, the maximum utilization of inbound traffic on this entrance link on the border router must be 90 percent, or less.
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downgrade bgp community community-number
Example:
Router(config-oer-mc-br-if)# downgrade bgp community 4:5
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Specifies downgrade options for BGP advertisement for the configured OER-managed entrance link interface.
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Use the community keyword and community-number argument to specify a BGP community number that will be added to the BGP advertisement.
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In this example, the BGP community number 4:5 will be added to BGP advertisements to packets sent from this entrance link if it is not selected as the best entrance link.
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exit
Example:
Router(config-oer-mc-br-if)# exit
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Exits OER border exit interface configuration mode and returns to OER-managed border router configuration mode. |
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Repeat Step 14 twice to return to global configuration mode.
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-- |
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oer-map map-name sequence-number
Example:
Router(config)# oer-map INSIDE_LEARN 10
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Enters OER map configuration mode to configure an OER map to apply policies to selected IP prefixes.
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Only one match clause can be configured for each OER map sequence.
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Deny sequences are first defined in an IP prefix list and then applied with a matchcommand.
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The example creates an OER map named INSIDE_LEARN.
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match oer learn {delay| inside| throughput}
Example:
Router(config-oer-map)# match oer learn inside
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Creates a match clause entry in an OER map to match OER learned prefixes.
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Prefixes can be configured to learn prefixes that are inside prefixes or prefixes based on lowest delay, or highest outbound throughput.
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Only a single match clause can be configured for each OER map sequence.
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The example creates a match clause entry that matches traffic classes learned using inside prefixes.
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set delay {relative percentage | threshold maximum}
Example:
Router(config-oer-map)# set delay threshold 200
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Creates a set clause entry to configure the delay threshold.
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The delay threshold can be configured as a relative percentage or as an absolute value for match criteria.
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The relative keyword is used to configure a relative delay percentage. The relative delay percentage is based on a comparison of short-term and long-term measurements.
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The threshold keyword is used to configure the absolute maximum delay period in milliseconds.
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The example creates a set clause that sets the absolute maximum delay threshold to 200 milliseconds for traffic that is matched in the same OER map sequence.
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set mode route control
Example:
Router(config-oer-map)# set mode route control
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Creates a set clause entry to configure route control for matched traffic.
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In control mode, the master controller analyzes monitored traffic classes and implements changes based on policy parameters.
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In this example, a set clause that enables OER control mode is created.
Note |
Only the syntax applicable to this task is shown. For more details, see the Cisco IOS Optimized Edge Routing Command Reference. |
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end
Example:
Router(config-oer-map)# end
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(Optional) Exits OER map configuration mode and returns to privileged EXEC mode. |