[Network| Fix SDK breaking change. (#6028)

* Fix SDK breaking change.

* Fixes for Stack compatibility

Author: tjprescott

src/command_modules/azure-cli-network/azure/cli/command_modules/network/_params.py

@@ -39,17 +39,23 @@ def load_arguments(self, _):
 
     (Access, ApplicationGatewayFirewallMode, ApplicationGatewayProtocol, ApplicationGatewayRedirectType,
      ApplicationGatewayRequestRoutingRuleType, ApplicationGatewaySkuName, AuthenticationMethod, Direction,
-     ExpressRouteCircuitPeeringType, ExpressRouteCircuitSkuFamily, ExpressRouteCircuitSkuTier, IPAllocationMethod,
+     ExpressRouteCircuitSkuFamily, ExpressRouteCircuitSkuTier, IPAllocationMethod,
      IPVersion, LoadBalancerSkuName, LoadDistribution, ProbeProtocol, ProcessorArchitecture, Protocol, PublicIPAddressSkuName,
      RouteNextHopType, SecurityRuleAccess, SecurityRuleProtocol, SecurityRuleDirection, TransportProtocol,
      VirtualNetworkGatewaySkuName, VirtualNetworkGatewayType, VpnClientProtocol, VpnType, ZoneType) = self.get_models(
          'Access', 'ApplicationGatewayFirewallMode', 'ApplicationGatewayProtocol', 'ApplicationGatewayRedirectType',
          'ApplicationGatewayRequestRoutingRuleType', 'ApplicationGatewaySkuName', 'AuthenticationMethod', 'Direction',
-         'ExpressRouteCircuitPeeringType', 'ExpressRouteCircuitSkuFamily', 'ExpressRouteCircuitSkuTier', 'IPAllocationMethod',
+         'ExpressRouteCircuitSkuFamily', 'ExpressRouteCircuitSkuTier', 'IPAllocationMethod',
          'IPVersion', 'LoadBalancerSkuName', 'LoadDistribution', 'ProbeProtocol', 'ProcessorArchitecture', 'Protocol', 'PublicIPAddressSkuName',
          'RouteNextHopType', 'SecurityRuleAccess', 'SecurityRuleProtocol', 'SecurityRuleDirection', 'TransportProtocol',
          'VirtualNetworkGatewaySkuName', 'VirtualNetworkGatewayType', 'VpnClientProtocol', 'VpnType', 'ZoneType')
 
+    if self.supported_api_version(min_api='2018-02-01'):
+        ExpressRoutePeeringType = self.get_models('ExpressRoutePeeringType')
+    else:
+        # for Stack compatibility
+        ExpressRoutePeeringType = self.get_models('ExpressRouteCircuitPeeringType')
+
     default_existing = 'If only one exists, omit to use as default.'
 
     # taken from Xplat. No enums in SDK
@@ -436,7 +442,7 @@ def load_arguments(self, _):
         c.argument('vlan_id', help='Identifier used to identify the customer.')
         c.argument('circuit_name', circuit_name_type)
         c.argument('peering_name', name_arg_type, id_part='child_name_1')
-        c.argument('peering_type', validator=validate_peering_type, arg_type=get_enum_type(ExpressRouteCircuitPeeringType), help='BGP peering type for the circuit.')
+        c.argument('peering_type', validator=validate_peering_type, arg_type=get_enum_type(ExpressRoutePeeringType), help='BGP peering type for the circuit.')
         c.argument('sku_family', arg_type=get_enum_type(ExpressRouteCircuitSkuFamily))
         c.argument('sku_tier', arg_type=get_enum_type(ExpressRouteCircuitSkuTier))
         c.argument('primary_peer_address_prefix', options_list=['--primary-peer-subnet'], help='/30 subnet used to configure IP addresses for primary interface.')

src/command_modules/azure-cli-network/azure/cli/command_modules/network/custom.py

@@ -1468,18 +1468,21 @@ def create_express_route_peering(
         primary_peer_address_prefix, secondary_peer_address_prefix, shared_key=None,
         advertised_public_prefixes=None, customer_asn=None, routing_registry_name=None,
         route_filter=None):
-    (ExpressRouteCircuitPeering, ExpressRouteCircuitPeeringConfig, ExpressRouteCircuitPeeringType,
-     RouteFilter) = cmd.get_models(
-         'ExpressRouteCircuitPeering', 'ExpressRouteCircuitPeeringConfig', 'ExpressRouteCircuitPeeringType',
-         'RouteFilter')
+    (ExpressRouteCircuitPeering, ExpressRouteCircuitPeeringConfig, RouteFilter) = \
+        cmd.get_models('ExpressRouteCircuitPeering', 'ExpressRouteCircuitPeeringConfig', 'RouteFilter')
+
+    if cmd.supported_api_version(min_api='2018-02-01'):
+        ExpressRoutePeeringType = cmd.get_models('ExpressRoutePeeringType')
+    else:
+        ExpressRoutePeeringType = cmd.get_models('ExpressRouteCircuitPeeringType')
 
     peering = ExpressRouteCircuitPeering(
         peering_type=peering_type, peer_asn=peer_asn, vlan_id=vlan_id,
         primary_peer_address_prefix=primary_peer_address_prefix,
         secondary_peer_address_prefix=secondary_peer_address_prefix,
         shared_key=shared_key)
 
-    if peering_type == ExpressRouteCircuitPeeringType.microsoft_peering.value:
+    if peering_type == ExpressRoutePeeringType.microsoft_peering.value:
         peering.microsoft_peering_config = ExpressRouteCircuitPeeringConfig(
             advertised_public_prefixes=advertised_public_prefixes,
             customer_asn=customer_asn,