Closes: #18434 - Add SPB in L2VPN (#18523)

* Add SPB in L2VPN

* Change category as Other

Co-authored-by: Daniel Sheppard <dans@dansheps.com>

---------

Co-authored-by: Daniel Sheppard <dans@dansheps.com>

netbox/vpn/choices.py

@@ -228,6 +228,7 @@ class L2VPNTypeChoices(ChoiceSet):
     TYPE_MPLS_EVPN = 'mpls-evpn'
     TYPE_PBB_EVPN = 'pbb-evpn'
     TYPE_EVPN_VPWS = 'evpn-vpws'
+    TYPE_SPB = 'spb'
 
     CHOICES = (
         ('VPLS', (
@@ -255,6 +256,9 @@ class L2VPNTypeChoices(ChoiceSet):
             (TYPE_EPTREE, _('Ethernet Private Tree')),
             (TYPE_EVPTREE, _('Ethernet Virtual Private Tree')),
         )),
+        ('Other', (
+            (TYPE_SPB, _('SPB')),
+        )),
     )
 
     P2P = (