advanced-feature-bandwidth-reservation Boot Flag

Use the boot config flags advanced-feature-bandwidth-reservation command to enable advanced features on the switch. If the boot config flags advanced-feature-bandwidth-reservation command is disabled and you attempt to enable an advanced feature, the switch displays an error message to explain why the advanced feature failed to start, and to remind you that you must enable this boot flag for that advanced feature.

Important

If you change the configuration, you must save the configuration, and then reboot the switch for the change to take effect.

If you disable this feature and save the configuration, any configuration for advanced features remains saved in the configuration file but is not used.

5520 Series and VSP 7400 Series

By default, this boot configuration flag is enabled with the low level option for 5520 Series and VSP 7400 Series.

When disabled, you can use all ports for Layer 2 or Layer 3 forwarding of standard unicast and multicast features. Use this mode if you are not configuring advanced features. The syntax for disabling this boot configuration flag is no boot config flags advanced-feature-bandwidth-reservation.

When enabled, also known as Full Feature mode, the switch supports advanced features by reassigning some of the front panel ports to be loopback ports. The following advanced features require loopback ports:

• Fabric Extend

• SPB

• SMLT

• vIST

• VXLAN Gateway

• Fabric RSPAN (Mirror to I-SID)

• Application Telemetry

• IS-IS Accept Policies

• Segmented Management Instance CLIP interface

Note

Full Feature mode does not support PIM.

The syntax for enabling the boot flag for this mode is: boot config flags advanced-feature-bandwidth-reservation [low | high].

The high level means that the switch reserves the maximum bandwidth for the advanced features.

The low level means that the switch reserves less bandwidth to support minimum functionality for advanced features.

Note

Product Notice: 5520 Series only supports the low level.

After the switch reserves the appropriate ports to become loopback ports, the ports are no longer visible in the output when you enter show interfaces gigabitEthernet.

The following list identifies ports reserved as loopback ports:

• 5520 Series reserves the following ports:

  • 5520-12MW-36W reserves ports 1/49 and 1/50.

  • 5520-24T reserves ports 1/25 and 1/26.

  • 5520-24W reserves ports 1/25 and 1/26.

  • 5520-24X reserves ports 1/25 and 1/26.

  • 5520-48SE reserves ports 1/49 and 1/50.

  • 5520-48T reserves ports 1/49 and 1/50.

  • 5520-48W reserves ports 1/49 and 1/50.

• VSP 7432CQ

  • Low reserves ports 1/31 and 1/32.

  • High reserves ports 1/29, 1/30, 1/31, and 1/32.

• VSP 7400-48Y

  • Low reserves ports 1/55 and 1/56.

  • High reserves ports 1/53, 1/54, 1/55, and 1/56

Important

You must ensure your configuration does not include reserved ports before you enable this feature. If the configuration includes reserved ports after you enable this feature and restart the switch, the switch stops loading the configuration.

XA1400 Series

Note

Product Notice: This feature is available in demo mode only on XA1480 and supports low level parameter configuration automatically, which cannot be modified.

When disabled, all I-SID bindings are removed and the switch can only operate as a Backbone Core Bridge (BCB). The syntax for disabling this boot configuration flag is: no boot config flags advanced-feature-bandwidth-reservation.

When enabled, the switch reserves CPU cores for Backbone Edge Bridge (BEB) functionality. The syntax for enabling the boot flag for this mode is: boot config flags advanced-feature-bandwidth-reservation low.