Question concerning traffic-group

Hello,

I have a question concerning traffic-group and more precisely concerning traffic-group-1.

My architecture is the following.

• I have multiple VLAN on different partition (1 VLAN/ partition with its proper routing-domain) .
• I don't want to failover all VLAN if I have a problem on one VLAN.

Therefore I have implemented multiple traffic Group (1 traffic- group by partition).

In order to have a clear understanding i named as following traffic-Group-Partition.

As a consequence of the name of traffic-group I don't use the default traffic-group-1.

Do you know why it is impossible to delete it? .

Thank you for your help.

Best regards,

Matt