Cisco CPT Command Reference Guide CTC and Documentation Release 9.3 and Cisco IOS Release 15.1(01)SA

This chapter describes commands to configure Multiprotocol Label Switching (MPLS). we just introduce four commands, if you are interested in the other commands, and you can subscribe SPOTOCLUB and free download the valuable study materials.

Chapter 1: affinity

To specify the genetic relationship and associated mask values for LSP in the LSP property list, use the affinity command in LSP property configuration mode. To delete the specified property flag, use the no form of this command. affinity value [ mask value] no affinity 1)Syntax 

Description

Command Default Attribute flag values are not specified. Command Modes LSP attributes configuration (config-lsp-attr) 

2)Command History

3)Usage Guidelines 

Affinity value determines the attribute flag of the link that makes up the LSP, 0 or 1. The property mask determines the property value that the router should check. If the bit in the mask is 0, the linked property value or bit does not matter. If the bit in the mask is 1, the linked property value must match the affinity required for the bit’s LSP. An LSP can use a link if the link affinity equals the attribute flag value and the affinity mask value. Any value set to 1 in the affinity should also be set to 1 in the mask. To associate the LSP affinity property and LSP attribute list with the path options for LSP, you must configure the tunnel mpls traffic-eng path option command with the attribute string keyword and parameters, where string is the identifier of the specific LSP property list. 

4)Examples 

The following example shows how to specify the affinity value and affinity mask values for links comprising an LSP. Router(config-lsp-attr)# affinity 0 mask 0 

5)Related Commands 

Chapter 2: auto-bw

To specify the automatic bandwidth configuration for LSP in the LSP property list, use the auto-bw command in LSP property configuration mode. To delete the automatic bandwidth configuration, use the no form of this command. auto-bw [ frequency secs] [ max-bw kbps] [ min-bw kbps] [ collect-bw] no auto-bw 

1)Syntax Description

Command Default The automatic bandwidth for the LSP is not enabled. Command Modes LSP attributes configuration (config-lsp-attr) 

2)Command History

Usage Guidelines Use this command to set an automatic bandwidth configuration for a LSP in an LSP attributes list. To sample the bandwidth used by an LSP without automatically adjusting it, specify the collect-bw keyword in the auto-bw command in an LSP attribute list. If you enter the auto-bw command without the collect-bw keyword, the bandwidth of the LSP is adjusted to the largest average output rate sampled for the LSP since the last bandwidth adjustment for the LSP was made. To constrain the automatic bandwidth adjustment that can be made to an LSP in an LSP attribute list, use the max-bw or min-bw keyword and specify the permitted maximum allowable bandwidth or minimum allowable bandwidth, respectively. The no form of the auto-bw command disables the automatic bandwidth adjustment for the tunnel and restores the configured bandwidth for the LSP where configured bandwidth is determined as follows: If the LSP bandwidth was explicitly configured with the mpls traffic-eng lsp attributes lsp-id bandwidth command after the running configuration was written to the startup configuration, the configured bandwidth is the bandwidth specified by that command. Otherwise, the configured bandwidth is the bandwidth specified for the tunnel in the startup configuration. To associate the LSP automatic bandwidth adjustment attribute and the LSP attribute list with a path option for an LSP, you must configure the tunnel mpls traffic-eng path option command with the attributes string keyword and argument, where string is the identifier of the specific LSP attribute list. 3)Examples The following example sets the automatic bandwidth configuration for an LSP in an LSP attribute list. Router(config-lsp-attr)# auto-bw 

4)Related Commands

Chapter 3: bandwidth

To configure LSP bandwidth in an LSP attribute list, use the bandwidth command in LSP attributes configuration mode. To remove the configured bandwidth from the LSP attribute list, use the no form of this command. bandwidth global kbps no bandwidth 

1)Syntax Description

Command Default The LSP bandwidth is not configured in the LSP attribute list. Command Modes LSP attributes configuration (config-lsp-attr) 

2)Command History 

Usage Guidelines Use this command to configure the LSP bandwidth in the LSP attribute list. The bandwidth configured can be associated with both dynamic and explicit path options. To associate the LSP bandwidth and the LSP attribute list with a path option for an LSP, you must configure the tunnel mpls traffic-eng path option command with the attributes string keyword and argument, where string is the identifier of the specific LSP attribute list. The bandwidth configured in the LSP attribute list will override the bandwidth configured on the tunnel. 

3)Examples 

The following example shows how to specify an LSP bandwidth in the LSP attribute list. Router(config-lsp-attr)# bandwidth global 1000 

4)Related Commands

Chapter 4: index

To insert or modify a path entry at a specific index, use the index command in IP explicit path configuration mode. To remove the path entry at the specified index, use the no form of this command. index index command no index index 

1)Syntax Description

Command Default A path entry is not inserted for a specific index. Command Modes IP explicit path configuration (cfg-ip-expl-path) 

2)Command History

3)Examples 

The following example shows how to insert a path entry at index 6. Router(cfg-ip-expl-path)# index 6 next-address 209.165.200.225 Explicit Path identifier 6: 6: next-address 209.165.200.225 

4)Related Commands

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  : MPLS Configuration Commands Checklist [/emaillocker]