|
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. |
5420 Series |
VOSS 8.4 |
|
5520 Series |
VOSS 8.2.5 |
|
|
VSP 4450 Series |
Not Supported |
|
|
VSP 4900 Series |
Not Supported |
|
|
VSP 7200 Series |
Not Supported |
|
|
VSP 7400 Series |
VOSS 8.0 |
|
|
VSP 8200 Series |
Not Supported |
|
|
VSP 8400 Series |
Not Supported |
|
|
VSP 8600 Series |
Not Supported |
|
|
XA1400 Series |
VOSS 8.0.50 XA1480 only- demonstration feature |
The switch enables the boot config flags advanced-feature-bandwidth-reservation command by default to use advanced features on the switch. If you disable the boot config flags advanced-feature-bandwidth-reservation command 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.
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 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 | vim].
The high level parameter means that the switch reserves the maximum bandwidth for the advanced features.
The low level parameter means that the switch reserves less bandwidth to support minimum functionality for advanced features.
The vim level parameter means that the switch uses Versatile Interface Module (VIM) ports as loopback ports.
Note
Product Notice: The 5420 Series only supports low level.
Product Notice: The 5520 Series only supports low and vim level.
Product Notice: The VSP 7400 Series only supports high and 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.
By default, for the 5520 Series switches, if you do not install a VIM in the switch, the switch reserves vim parameter. In this configuration, the VIM ports are used as loopback ports and the Universal Ethernet ports are used as regular uplink ports. When used as regular uplink ports, the port speed is 40 Gbps as a single channel port. Although the maximum supported single channel port speed is 40 Gbps, the ports can be channelized to operate as four 10 or 25 Gbps channels. If a VIM is already installed in the switch, the switch reserves low parameter that uses Universal Ethernet ports as loopback ports and VIM ports as regular uplink ports.
If you want to change which ports a 5520 Series switch to uses as the loopback ports, you must change the Advanced Feature Bandwidth Reservation configuration before you install or remove a VIM from the switch. For example, the switch reserves vim parameter and uses VIM ports as loopback ports, if you want to install a VIM to the switch, before installing you must run the boot flag boot config flags advanced-feature-bandwidth-reservation low command to change the boot flag configuration to use Universal Ethernet ports as loopback ports.
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.
The following table lists the ports reserved as loopback ports:
| Product | Reserved loopback ports |
|---|---|
|
Universal Ethernet ports 1/29 and 1/30 Note: To understand restrictions on using reserved loopback ports as
front panel ports, see 5420 Series.
|
|
Universal Ethernet ports 1/53 and 1/54 Note: To understand restrictions on using reserved loopback ports as
front panel ports, see 5420 Series.
|
|
Low reserves Universal Ethernet ports 1/25 and 1/26 Vim reserves internal Versatile Interface Module ports |
|
Low reserves Universal Ethernet ports 1/49 and 1/50 Vim reserves internal Versatile Interface Module 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 |
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.
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.