Configure Hardware Profile to Limit IPv6 Prefix to 64

You can configure a hardware profile to limit the maximum length of IPv6 prefix to 64. The hardware profile configuration lets you increase the scale of IPv6 prefix installed on the routing hardware.

About this task

Follow this procedure to configure a hardware profile.

Note

Note

  • The hardware profile configuration is applicable only to Extreme 8520, 8720, 8820, 9150, and 9250 hardware on the SLX firmware version 20.2.1 and above.
  • You can configure CMD on the deployed fabric follow by warning message to reboot the system
  • The default value (of maximum-ipv6-prefix-length-64 string) is “” empty string. You can configure Yes or No.
  • If you configure device settings at fabric level and then add a new device to the fabric, the configured device settings at fabric level will not be applicable to the newly added device. You need to configure the device settings to the newly added device as shown in the following example:
    - efa inventory device setting update --maximum-ipv6-prefix-length-64 Yes --urpf Yes --fabric fs 
        - Adding a new device-3 to the fabric (configured settings --urpf yes at fabric level won‘t derived and effect to device-3) 
        - efa inventory device setting update --maximum-ipv6-prefix-length-64 Yes --urpf Yes –ip device-3 (user again configure the value)

Procedure

  1. Run the following command: 
    efa inventory device setting update
Error :  Please specify any one of Ip Address or Fabric Name.

update device setting

efa inventory device setting update [flags]

    --ip string                                      Specifies a comma-separated range of device IP addresses. For example: 1.1.1.1-3,1.1.1.2,2.2.2.2
    --fabric string                                  Specify the name of the fabric
    --maint-mode-enable-on-reboot string             Enter Yes to configure maintenance mode enable on reboot and No to de-configure
    --maint-mode-enable string                       Enter Yes to configure maintenance mode enable and No to de-configure
    --maint-mode-convergence-time string             Maximum time in seconds that maintenance mode is allowed to complete operations, valid values 100-500 and 0 to de-configure
    --mct-bring-up-delay string                      Delay, in seconds, waited before MCT cluster bring-up, valid values 10-600 and 0 to de-configure
    --health-check-enable string                     Enter Yes to enable health check and No to disable health check
    --health-check-interval string                   Health check interval in seconds/minutes, valid values for Fabric device 6m-24h, valid values for NPB device 30s-24h Example. 30s or 99m or 1h20m or 20m, default 6m for Fabric device, 30s for NPB device
    --health-check-heartbeat-miss-threshold string   Health check's heartbeat miss threshold value, valid value range in between 2-5, default 2
    --config-backup-periodic-enable string           Enter Yes to enable periodic config backup and No to disable periodic config backup
    --config-backup-interval string                  Config Backup interval in minutes, valid values 3m-30h Example. 99m or 1h20m or 20m , default 24h
    --number-of-config-backups string                Config Backup Count, valid values 2-20, default 4
    --prefix-independent-convergence string          Enter Yes to enable BGP PIC and No to de-configure
    --prefix-independent-convergence-static string   Enter Yes to enable Static PIC and No to de-configure
    --maximum-load-sharing-paths string              Config route load-sharing maximum paths, valid values 8,16,32,64,128 and 0 to de-configure
    --maximum-ipv6-prefix-length-64 string           Enter Yes to configure the maximum route prefix length of 64, valid values Yes/No, default "". This configuration is applicable for SLX-9150, SLX-9250, Extreme 8720 and Extreme 8520 hardware
    --urpf string                                    Enter Yes to configure the unicast reverse path forwarding, valid values Yes/No, default "". This configuration is applicable for SLX-9150, SLX-9250, Extreme 8720 and Extreme 8520 hardware
    --ip-option-disable string                       Enter Yes to disable processing IP packets with IP options.  Enter No to enable processing IP packets with ip options
    --ip-option-disable-cpu string                   Enter Yes to disable processing IP packets with IP options destined to the CPU. Enter No to enable processing IP packets with IP options destined to the CPU
    --ipv6-option-disable string                     Enter Yes to disable processing IPV6 packets with IP options.  Enter No to enable processing IPV6 packets with IP options
  --- Time Elapsed: 54.634847ms ---
  2. Complete the following configuration on SLX device: 
    Rack1-Device1# show running-config hardware
hardware
   profile route enable ipv6-max-prefix-64 urpf
!

Example

The following example configures a hardware profile that limit the maximum length of IPv6 prefix to 64:
$ efa inventory device setting update --maximum-ipv6-prefix-length-64 Yes --urpf Yes --ip 10.20.48.93 

+-------------+-------------------------------+---------+-------+-------+ 
| IP ADDRESS  |             NAME              | STATUS  | VALUE | ERROR | 
+-------------+-------------------------------+---------+-------+-------+ 
| 10.20.48.93 | Maximum Ipv6 Prefix Length 64 | Success | Yes   |       | 
+             +-------------------------------+---------+-------+-------+ 
|             | Urpf                          | Success | Yes   |       | 
+-------------+-------------------------------+---------+-------+-------+ 

Warning: Maximum Ipv6 Prefix Length 64 configuration will not take effect until reloaded. 

Execute the CLI to reload : efa inventory device reload --ip 10.20.48.93 

Warning: Urpf configuration will not take effect until reloaded. 

Execute the CLI to reload : efa inventory device reload --ip 10.20.48.93 

--- Time Elapsed: 14.1348949s --- 


$ efa inventory device setting show --ip 10.20.48.93 

+--------------------------------+-------+ 
|              NAME              | VALUE | 
+--------------------------------+-------+ 
| Maintenance Mode Enable On     | No    | 
| Reboot                         |       | 
+--------------------------------+-------+ 
| Maintenance Mode Enable        | No    | 
+--------------------------------+-------+ 
| Maintenance Convergence Time   |       | 
+--------------------------------+-------+ 
| MCT Bring-up Delay             |       | 
+--------------------------------+-------+ 
| Health Check Enabled           | No    | 
+--------------------------------+-------+ 
| Health Check Interval          | 6m    | 
+--------------------------------+-------+ 
| Health Check Heartbeat Miss    | 2     | 
| Threshold                      |       | 
+--------------------------------+-------+ 
| Periodic Backup Enabled        | Yes   | 
+--------------------------------+-------+ 
| Config Backup Interval         | 24h   | 
+--------------------------------+-------+ 
| Config Backup Count            | 4     | 
+--------------------------------+-------+ 
| Prefix Independent Convergence | No    | 
+--------------------------------+-------+ 
| Static Prefix Independent      | No    | 
| Convergence                    |       | 
+--------------------------------+-------+ 
| Maximum Load Sharing Paths     | 128    | 
+--------------------------------+-------+ 
| Maximum Ipv6 Prefix Length 64  | Yes   | 
+--------------------------------+-------+ 
| Urpf                           | Yes   | 
+--------------------------------+-------+ 
--- Time Elapsed: 56.1149ms --- 
9038968-00 Rev AB