diff --git a/api/wiring/v1alpha2/switch_types.go b/api/wiring/v1alpha2/switch_types.go
index 8c3127ba..8a289508 100644
--- a/api/wiring/v1alpha2/switch_types.go
+++ b/api/wiring/v1alpha2/switch_types.go
@@ -38,6 +38,16 @@ const (
 	SwitchRoleBorderLeaf SwitchRole = "border-leaf"
 )
 
+var SwitchRoles = []SwitchRole{
+	SwitchRoleSpine,
+	SwitchRoleServerLeaf,
+	SwitchRoleBorderLeaf,
+}
+
+func (r SwitchRole) IsSpine() bool {
+	return r == SwitchRoleSpine
+}
+
 func (r SwitchRole) IsLeaf() bool {
 	return r == SwitchRoleServerLeaf || r == SwitchRoleBorderLeaf
 }