|
Feature |
Product |
Release introduced |
|---|---|---|
|
Advanced Feature Bandwidth Reservation Note:
If your switch does not have this boot flag, it is because the hardware reserves the bandwidth automatically with no user interaction. |
5320 Series |
Fabric Engine 8.6 Not supported on 5320-16P-4XE or 5320-16P-4XE-DC |
|
5420 Series |
VOSS 8.4 |
|
|
5520 Series |
VOSS 8.2.5 |
|
|
5720 Series |
Fabric Engine 8.7 |
|
|
7520 Series |
Fabric Engine 8.10 |
|
|
7720 Series |
Fabric Engine 8.10 |
|
|
VSP 4900 Series |
Not Supported |
|
|
VSP 7400 Series |
VOSS 8.0 |
VSP 7400 Series enables this boot configuration flag by default to use advanced features on the switch. If you disable this flag and 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 configuration flag for that advanced feature.
Warning: Please save the
configuration and reboot the switch for this to take effect. Flag
advanced-feature-bandwidth-reservation is changed to disable. Features such as
S-VIST, Analytics, Fabric Extend, CLIP Management and selected SPBM Services
will not be supported when boot with this flag disabled.
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.
When you disable this feature, 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.
When you enable this feature, also known as Full Feature mode, the switch supports advanced features by reassigning some of the front panel ports to be loopback ports.
Important
Advanced Bandwidth Feature Reservation must be enabled when using SPBM even if features requiring loopback bandwidth are not used.
The following advanced features require loopback ports:
Note
Full Feature mode does not support PIM.
This feature supports two modes:
When you select low or high, the corresponding bandwidth of the reserved Ethernet ports is allocated to the loopback required for advanced feature functionality.
Note
You can consider using low bandwidth mode instead of high bandwidth mode to free up two reserved ports for use as regular ports.
By default, this boot configuration flag is enabled with the low level option.
The following table lists the ports reserved as loopback ports:
| Product | Reserved loopback ports |
|---|---|
| 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 |
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.
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.