Configuring Administrative Group and Affinity Property
Context
The affinity property, together with the link administrative group attribute, is used to determine the links used in CR-LSP path calculation.
- Hexadecimal number: A 32-bit hexadecimal numbers is set for each affinity property and link administrative group attribute, which causes plan and computation difficulties. This is the traditional configuration method.
- Name: Each affinity and link administrative group bit can be named, which simplifies configuration and maintenance. Naming affinity and link administrative group bits is recommended.
The change of the administrative group attribute takes effect only on the new CR-LSP, without affecting the existing CR-LSPs.
If the affinity property of a tunnel is changed, the existing CR-LSPs for the tunnel are affected. The device re-calculates a path for the tunnel.
Configure an affinity property on the ingress node of the MPLS TE tunnel and an administrative group attribute on each node participating in the tunnel path calculation.
Procedure
- Configure an administrative group attribute and affinity
property through a hexadecimal number.
- Configure a hexadecimal number for the link's administrative
group attribute.
Run system-view
The system view is displayed.
Run interface interface-type interface-number
The MPLS-TE-enabled interface view is displayed.
On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.
If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.
Run mpls te link administrative group value
An administrative group attribute is configured for the link.
The default administrative group attribute for the link is 0x0.
Run quit
Return to the system view.
- Configure a hexadecimal number for the link's administrative
group attribute.
- Configure an administrative group attribute and affinity
property through a name.
- Configure a mapping template for affinity
names and bits.
Run system-view
The system view is displayed.
Run path-constraint affinity-mapping
An affinity name template is created, and the template view is displayed.
By default, no affinity name template is created.
Run attribute bit-name bit-sequence bit-number
Mappings between affinity bits and names are configured.
This step can be performed to configure one affinity bit. Repeat this step to configure more affinity bits. You can configure some or all 32 affinity bits.
By default, no mapping between affinity bits and names is configured.
Run quit
Return to the system view.
Configure an affinity name template on each node used to calculate the path over which a tunnel is established. The mapping relationship on all the nodes must be the same. In this way, affinity names have the same meaning during path calculation for the tunnel.
- Configure an administrative group name for a link.
Run interface interface-type interface-number
The MPLS-TE-enabled interface view is displayed.
On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.
If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.
Run mpls te link administrative group name bit-name &<1-32>
An administrative group name is configured for a link.
In this command, bit-name must be within the range defined in the affinity name template.
By default, the administrative group attribute value of a link is 0x0, and no administrative group name is configured for the link.
Run quit
Return to the system view.
- Configure a mapping template for affinity
names and bits.