External network route target limited to 16 bit instead of 32 bit

[Daniel Roesen]

FUEL 8.0, Contrail 3.0.1, plugin git master branch checkout on 2016-05-13.

Trying to enter route target local part in Fuel UI for the Contrail plugin, it refuses to take any values bigger than 2^16. This would be correct for standard BGP communities, but extended communities (e.g. route targets) support 32 bits for the local part.

Bug is in environment_config.yaml:

  contrail_route_target:
    value: '10000'
    label: 'Route Target'
    description: 'The route target number for Contrail external network'
    weight: 60
    type: "text"
    regex:
      source: '^(?:(6553[0-5])|(655[0-2]\d)|(65[0-4]\d{2})|(6[0-4]\d{3})|([1-5]\d{4})|([1-9]\d{1,3})|([1-9]))$'
      error: "Invalid target"

regex needs to be adapted to 32 bits.

[Oleksandr Martsyniuk (omartsyniuk)]

Hello,

Contrail uses a notation of as-number:community-value, where each value is a decimal number.
Based on that, plugin setting for route target refers to community-value only, using predefined as-number.

[Daniel Roesen (daniel-roesen)]

Hi,

I'm talking only about the "community-value" part. This is a 32bit value, not a 16bit value!
The FUEL plugin currently limits the "community-value" part to 16bit, and this is a bug.

Best regards,
Daniel

[Olesia Tsvigun (otsvigun)]

Verified at fuel-plugin-contrail 4.0

[Daniel Roesen (daniel-roesen)]

Fix verified, works for us. Thanks!