Add support for generating interface configuration in /etc/network/interfaces for multiple management interfaces (#11204)

* [Interfaces] Modify template to support multiple management interfaces * Modify minigraph to process interfaces in sorted order Signed-off-by: Ubuntu <gechen@gechen-sonic-dev.d0r25nej54guppclip4gpy5b5a.jx.internal.cloudapp.net> * Add UT minigraph Signed-off-by: Ubuntu <gechen@gechen-sonic-dev.d0r25nej54guppclip4gpy5b5a.jx.internal.cloudapp.net> * make case insensitve comparison Signed-off-by: George Chen <gechen@microsoft.com> * Use natural sort Signed-off-by: George Chen <gechen@microsoft.com> Co-authored-by: Ubuntu <gechen@gechen-sonic-dev.d0r25nej54guppclip4gpy5b5a.jx.internal.cloudapp.net>
2022-06-21 10:16:10 -07:00 · 2022-06-21 10:16:10 -07:00 · 90a849ea85
commit 90a849ea85
parent 0ae4903ef9
6 changed files with 1132 additions and 12 deletions
--- a/files/image_config/interfaces/interfaces.j2
+++ b/files/image_config/interfaces/interfaces.j2
@ -30,19 +30,27 @@ iface lo inet loopback
 {% block mgmt_interface %}

 # The management network interface
-auto eth0
+{% if MGMT_INTERFACE %}
+{% for (name, prefix) in MGMT_INTERFACE|pfx_filter|unique(attribute=0) %}
+auto {{ name }}
+{% endfor %}
+{% endif %}
 {% if (ZTP_DHCP_DISABLED is not defined) and (ZTP is defined) and (ZTP['mode'] is defined and ZTP['mode']['profile'] == 'active') %}


 # ZTP out-of-band interface
-allow-hotplug eth0
+{% if MGMT_INTERFACE %}
+{% for (name, prefix) in MGMT_INTERFACE|pfx_filter|unique(attribute=0) %}
+allow-hotplug {{ name }}
 {% if ZTP['mode']['ipv4'] == 'true' %}
-iface eth0 inet dhcp
+iface {{ name }} inet dhcp
 {% endif %}
 {% if ZTP['mode']['ipv6'] == 'true' %}
-iface eth0 inet6 dhcp
-    up sysctl net.ipv6.conf.eth0.accept_ra=1
-    down sysctl net.ipv6.conf.eth0.accept_ra=0
+iface {{ name }} inet6 dhcp
+    up sysctl net.ipv6.conf.{{ name }}.accept_ra=1
+    down sysctl net.ipv6.conf.{{ name }}.accept_ra=0
+{% endif %}
+{% endfor %}
 {% endif %}

 {% if ZTP['mode']['inband'] == 'true' %}
@ -65,7 +73,7 @@ iface {{ port }} inet6 dhcp
 {% else %}
 {% if MGMT_INTERFACE %}
 {% for (name, prefix) in MGMT_INTERFACE|pfx_filter %}
-iface eth0 {{ 'inet' if prefix | ipv4 else 'inet6' }} static
+iface {{ name }} {{ 'inet' if prefix | ipv4 else 'inet6' }} static
    address {{ prefix | ip }}
    netmask {{ prefix | netmask if prefix | ipv4 else prefix | prefixlen }}
    network {{ prefix | network }}
@ -77,15 +85,15 @@ iface eth0 {{ 'inet' if prefix | ipv4 else 'inet6' }} static
 {% endif %}
    ########## management network policy routing rules
    # management port up rules
-    up ip {{ '-4' if prefix | ipv4 else '-6' }} route add default via {{ MGMT_INTERFACE[(name, prefix)]['gwaddr'] }} dev eth0 table {{ vrf_table }} metric 201
-    up ip {{ '-4' if prefix | ipv4 else '-6' }} route add {{ prefix | network }}/{{ prefix | prefixlen }} dev eth0 table {{ vrf_table }}
+    up ip {{ '-4' if prefix | ipv4 else '-6' }} route add default via {{ MGMT_INTERFACE[(name, prefix)]['gwaddr'] }} dev {{ name }} table {{ vrf_table }} metric 201
+    up ip {{ '-4' if prefix | ipv4 else '-6' }} route add {{ prefix | network }}/{{ prefix | prefixlen }} dev {{ name }} table {{ vrf_table }}
    up ip {{ '-4' if prefix | ipv4 else '-6' }} rule add pref 32765 from {{ prefix | ip }}/{{ '32' if prefix | ipv4 else '128' }} table {{ vrf_table }}
 {% for route in MGMT_INTERFACE[(name, prefix)]['forced_mgmt_routes'] %}
    up ip rule add pref 32764 to {{ route }} table {{ vrf_table }}
 {% endfor %}
    # management port down rules
-    pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} route delete default via {{ MGMT_INTERFACE[(name, prefix)]['gwaddr'] }} dev eth0 table {{ vrf_table }}
-    pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} route delete {{ prefix | network }}/{{ prefix | prefixlen }} dev eth0 table {{ vrf_table }}
+    pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} route delete default via {{ MGMT_INTERFACE[(name, prefix)]['gwaddr'] }} dev {{ name }} table {{ vrf_table }}
+    pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} route delete {{ prefix | network }}/{{ prefix | prefixlen }} dev {{ name }} table {{ vrf_table }}
    pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} rule delete pref 32765 from {{ prefix | ip }}/{{ '32' if prefix | ipv4 else '128' }} table {{ vrf_table }}
 {% for route in MGMT_INTERFACE[(name, prefix)]['forced_mgmt_routes'] %}
    pre-down ip rule delete pref 32764 to {{ route }} table {{ vrf_table }}
--- a/src/sonic-config-engine/minigraph.py
+++ b/src/sonic-config-engine/minigraph.py
@ -10,6 +10,7 @@ from collections import defaultdict
 from lxml import etree as ET
 from lxml.etree import QName

+from natsort import natsorted

 from portconfig import get_port_config
 from sonic_py_common.interface import backplane_prefix
@ -1432,7 +1433,8 @@ def parse_xml(filename, platform=None, port_config_file=None, asic_name=None, hw
    results['MGMT_INTERFACE'] = {}
    mgmt_intf_count = 0
    mgmt_alias_reverse_mapping = {}
-    for key in mgmt_intf:
+    sorted_keys = natsorted(mgmt_intf.keys(), key=lambda x : x[0].lower())
+    for key in sorted_keys:
        alias = key[0]
        if alias in mgmt_alias_reverse_mapping:
            name = mgmt_alias_reverse_mapping[alias]
--- a/src/sonic-config-engine/tests/sample_output/py2/two_mgmt_interfaces
+++ b/src/sonic-config-engine/tests/sample_output/py2/two_mgmt_interfaces
@ -0,0 +1,76 @@
+#
+# =============== Managed by SONiC Config Engine DO NOT EDIT! ===============
+# generated from /usr/share/sonic/templates/interfaces.j2 using sonic-cfggen
+# file: /etc/network/interfaces
+#
+# The loopback network interface
+auto lo
+iface lo inet loopback
+   address 127.0.0.1
+   netmask 255.255.0.0
+   scope host
+   post-up ip addr del 127.0.0.1/8 dev lo
+
+# The management network interface
+auto eth1
+auto eth0
+iface eth1 inet static
+    address 10.0.10.100
+    netmask 255.255.255.0
+    network 10.0.10.0
+    broadcast 10.0.10.255
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -4 route add default via 10.0.10.1 dev eth1 table default metric 201
+    up ip -4 route add 10.0.10.0/24 dev eth1 table default
+    up ip -4 rule add pref 32765 from 10.0.10.100/32 table default
+    # management port down rules
+    pre-down ip -4 route delete default via 10.0.10.1 dev eth1 table default
+    pre-down ip -4 route delete 10.0.10.0/24 dev eth1 table default
+    pre-down ip -4 rule delete pref 32765 from 10.0.10.100/32 table default
+iface eth0 inet static
+    address 10.0.0.100
+    netmask 255.255.255.0
+    network 10.0.0.0
+    broadcast 10.0.0.255
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -4 route add default via 10.0.0.1 dev eth0 table default metric 201
+    up ip -4 route add 10.0.0.0/24 dev eth0 table default
+    up ip -4 rule add pref 32765 from 10.0.0.100/32 table default
+    # management port down rules
+    pre-down ip -4 route delete default via 10.0.0.1 dev eth0 table default
+    pre-down ip -4 route delete 10.0.0.0/24 dev eth0 table default
+    pre-down ip -4 rule delete pref 32765 from 10.0.0.100/32 table default
+iface eth1 inet6 static
+    address 2603:10e2:0:abcd::8
+    netmask 64
+    network 2603:10e2:0:abcd::
+    broadcast 2603:10e2:0:abcd:ffff:ffff:ffff:ffff
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -6 route add default via 2603:10e2:0:abcd::1 dev eth1 table default metric 201
+    up ip -6 route add 2603:10e2:0:abcd::/64 dev eth1 table default
+    up ip -6 rule add pref 32765 from 2603:10e2:0:abcd::8/128 table default
+    # management port down rules
+    pre-down ip -6 route delete default via 2603:10e2:0:abcd::1 dev eth1 table default
+    pre-down ip -6 route delete 2603:10e2:0:abcd::/64 dev eth1 table default
+    pre-down ip -6 rule delete pref 32765 from 2603:10e2:0:abcd::8/128 table default
+iface eth0 inet6 static
+    address 2603:10e2:0:2902::8
+    netmask 64
+    network 2603:10e2:0:2902::
+    broadcast 2603:10e2:0:2902:ffff:ffff:ffff:ffff
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -6 route add default via 2603:10e2:0:2902::1 dev eth0 table default metric 201
+    up ip -6 route add 2603:10e2:0:2902::/64 dev eth0 table default
+    up ip -6 rule add pref 32765 from 2603:10e2:0:2902::8/128 table default
+    # management port down rules
+    pre-down ip -6 route delete default via 2603:10e2:0:2902::1 dev eth0 table default
+    pre-down ip -6 route delete 2603:10e2:0:2902::/64 dev eth0 table default
+    pre-down ip -6 rule delete pref 32765 from 2603:10e2:0:2902::8/128 table default
+#
+source /etc/network/interfaces.d/*
+#
+
--- a/src/sonic-config-engine/tests/sample_output/py3/two_mgmt_interfaces
+++ b/src/sonic-config-engine/tests/sample_output/py3/two_mgmt_interfaces
@ -0,0 +1,76 @@
+#
+# =============== Managed by SONiC Config Engine DO NOT EDIT! ===============
+# generated from /usr/share/sonic/templates/interfaces.j2 using sonic-cfggen
+# file: /etc/network/interfaces
+#
+# The loopback network interface
+auto lo
+iface lo inet loopback
+   address 127.0.0.1
+   netmask 255.255.0.0
+   scope host
+   post-up ip addr del 127.0.0.1/8 dev lo
+
+# The management network interface
+auto eth0
+auto eth1
+iface eth0 inet static
+    address 10.0.0.100
+    netmask 255.255.255.0
+    network 10.0.0.0
+    broadcast 10.0.0.255
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -4 route add default via 10.0.0.1 dev eth0 table default metric 201
+    up ip -4 route add 10.0.0.0/24 dev eth0 table default
+    up ip -4 rule add pref 32765 from 10.0.0.100/32 table default
+    # management port down rules
+    pre-down ip -4 route delete default via 10.0.0.1 dev eth0 table default
+    pre-down ip -4 route delete 10.0.0.0/24 dev eth0 table default
+    pre-down ip -4 rule delete pref 32765 from 10.0.0.100/32 table default
+iface eth0 inet6 static
+    address 2603:10e2:0:2902::8
+    netmask 64
+    network 2603:10e2:0:2902::
+    broadcast 2603:10e2:0:2902:ffff:ffff:ffff:ffff
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -6 route add default via 2603:10e2:0:2902::1 dev eth0 table default metric 201
+    up ip -6 route add 2603:10e2:0:2902::/64 dev eth0 table default
+    up ip -6 rule add pref 32765 from 2603:10e2:0:2902::8/128 table default
+    # management port down rules
+    pre-down ip -6 route delete default via 2603:10e2:0:2902::1 dev eth0 table default
+    pre-down ip -6 route delete 2603:10e2:0:2902::/64 dev eth0 table default
+    pre-down ip -6 rule delete pref 32765 from 2603:10e2:0:2902::8/128 table default
+iface eth1 inet static
+    address 10.0.10.100
+    netmask 255.255.255.0
+    network 10.0.10.0
+    broadcast 10.0.10.255
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -4 route add default via 10.0.10.1 dev eth1 table default metric 201
+    up ip -4 route add 10.0.10.0/24 dev eth1 table default
+    up ip -4 rule add pref 32765 from 10.0.10.100/32 table default
+    # management port down rules
+    pre-down ip -4 route delete default via 10.0.10.1 dev eth1 table default
+    pre-down ip -4 route delete 10.0.10.0/24 dev eth1 table default
+    pre-down ip -4 rule delete pref 32765 from 10.0.10.100/32 table default
+iface eth1 inet6 static
+    address 2603:10e2:0:abcd::8
+    netmask 64
+    network 2603:10e2:0:abcd::
+    broadcast 2603:10e2:0:abcd:ffff:ffff:ffff:ffff
+    ########## management network policy routing rules
+    # management port up rules
+    up ip -6 route add default via 2603:10e2:0:abcd::1 dev eth1 table default metric 201
+    up ip -6 route add 2603:10e2:0:abcd::/64 dev eth1 table default
+    up ip -6 rule add pref 32765 from 2603:10e2:0:abcd::8/128 table default
+    # management port down rules
+    pre-down ip -6 route delete default via 2603:10e2:0:abcd::1 dev eth1 table default
+    pre-down ip -6 route delete 2603:10e2:0:abcd::/64 dev eth1 table default
+    pre-down ip -6 rule delete pref 32765 from 2603:10e2:0:abcd::8/128 table default
+#
+source /etc/network/interfaces.d/*
+#
+
--- a/src/sonic-config-engine/tests/t0-sample-graph-two-mgmt.xml
+++ b/src/sonic-config-engine/tests/t0-sample-graph-two-mgmt.xml
@ -0,0 +1,953 @@
+<DeviceMiniGraph xmlns="Microsoft.Search.Autopilot.Evolution" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
+  <CpgDec>
+    <IsisRouters xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution"/>
+    <PeeringSessions>
+       <BGPSession>
+         <StartRouter>switch-t0</StartRouter>
+         <StartPeer>10.1.0.32</StartPeer>
+         <EndRouter>BGPMonitor</EndRouter>
+         <EndPeer>10.20.30.40</EndPeer>
+         <Multihop>30</Multihop>
+         <HoldTime>10</HoldTime>
+         <KeepAliveTime>3</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <MacSec>false</MacSec>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>10.0.0.56</StartPeer>
+        <EndRouter>ARISTA01T1</EndRouter>
+        <EndPeer>10.0.0.57</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>FC00::71</StartPeer>
+        <EndRouter>ARISTA01T1</EndRouter>
+        <EndPeer>FC00::72</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <MacSec>false</MacSec>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>10.0.0.58</StartPeer>
+        <EndRouter>ARISTA02T1</EndRouter>
+        <EndPeer>10.0.0.59</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>FC00::75</StartPeer>
+        <EndRouter>ARISTA02T1</EndRouter>
+        <EndPeer>FC00::76</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <MacSec>false</MacSec>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>10.0.0.60</StartPeer>
+        <EndRouter>ARISTA03T1</EndRouter>
+        <EndPeer>10.0.0.61</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>FC00::79</StartPeer>
+        <EndRouter>ARISTA03T1</EndRouter>
+        <EndPeer>FC00::7A</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <MacSec>false</MacSec>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>10.0.0.62</StartPeer>
+        <EndRouter>ARISTA04T1</EndRouter>
+        <EndPeer>10.0.0.63</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+      <BGPSession>
+        <StartRouter>switch-t0</StartRouter>
+        <StartPeer>FC00::7D</StartPeer>
+        <EndRouter>ARISTA04T1</EndRouter>
+        <EndPeer>FC00::7E</EndPeer>
+        <Multihop>1</Multihop>
+        <HoldTime>180</HoldTime>
+        <KeepAliveTime>60</KeepAliveTime>
+      </BGPSession>
+    </PeeringSessions>
+    <Routers xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+      <a:BGPRouterDeclaration>
+          <a:ASN>1</a:ASN>
+          <a:BgpGroups/>
+          <a:Hostname>BGPMonitor</a:Hostname>
+          <a:Peers>
+              <BGPPeer>
+                  <ElementType>BGPPeer</ElementType>
+                  <Address>10.1.0.32</Address>
+                  <RouteMapIn i:nil="true"/>
+                  <RouteMapOut i:nil="true"/>
+                  <Vrf i:nil="true"/>
+              </BGPPeer>
+          </a:Peers>
+          <a:RouteMaps/>
+      </a:BGPRouterDeclaration>
+      <a:BGPRouterDeclaration>
+        <a:ASN>65100</a:ASN>
+        <a:Hostname>switch-t0</a:Hostname>
+        <a:Peers>
+          <BGPPeer>
+            <Address>10.0.0.57</Address>
+            <RouteMapIn i:nil="true"/>
+            <RouteMapOut i:nil="true"/>
+            <Vrf i:nil="true"/>
+          </BGPPeer>
+          <BGPPeer>
+            <Address>10.0.0.59</Address>
+            <RouteMapIn i:nil="true"/>
+            <RouteMapOut i:nil="true"/>
+            <Vrf i:nil="true"/>
+          </BGPPeer>
+          <BGPPeer>
+            <Address>10.0.0.61</Address>
+            <RouteMapIn i:nil="true"/>
+            <RouteMapOut i:nil="true"/>
+            <Vrf i:nil="true"/>
+          </BGPPeer>
+          <BGPPeer>
+            <Address>10.0.0.63</Address>
+            <RouteMapIn i:nil="true"/>
+            <RouteMapOut i:nil="true"/>
+            <Vrf i:nil="true"/>
+          </BGPPeer>
+        </a:Peers>
+        <a:RouteMaps/>
+      </a:BGPRouterDeclaration>
+      <a:BGPRouterDeclaration>
+        <a:ASN>64600</a:ASN>
+        <a:Hostname>ARISTA01T1</a:Hostname>
+        <a:RouteMaps/>
+      </a:BGPRouterDeclaration>
+      <a:BGPRouterDeclaration>
+        <a:ASN>64600</a:ASN>
+        <a:Hostname>ARISTA02T1</a:Hostname>
+        <a:RouteMaps/>
+      </a:BGPRouterDeclaration>
+      <a:BGPRouterDeclaration>
+        <a:ASN>64600</a:ASN>
+        <a:Hostname>ARISTA03T1</a:Hostname>
+        <a:RouteMaps/>
+      </a:BGPRouterDeclaration>
+      <a:BGPRouterDeclaration>
+        <a:ASN>64600</a:ASN>
+        <a:Hostname>ARISTA04T1</a:Hostname>
+        <a:RouteMaps/>
+      </a:BGPRouterDeclaration>
+    </Routers>
+  </CpgDec>
+  <DpgDec>
+    <DeviceDataPlaneInfo>
+      <IPSecTunnels/>
+      <LoopbackIPInterfaces xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+        <a:LoopbackIPInterface>
+          <Name>HostIP</Name>
+          <AttachTo>Loopback0</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>10.1.0.32/32</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>10.1.0.32/32</a:PrefixStr>
+        </a:LoopbackIPInterface>
+        <a:LoopbackIPInterface>
+          <Name>HostIP1</Name>
+          <AttachTo>Loopback0</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>FC00:1::32/128</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>FC00:1::32/128</a:PrefixStr>
+        </a:LoopbackIPInterface>
+        <a:LoopbackIPInterface>
+          <Name>LoopbackIP1</Name>
+          <AttachTo>Loopback1</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>10.10.0.99/32</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>10.10.0.99/32</a:PrefixStr>
+        </a:LoopbackIPInterface>
+        <a:LoopbackIPInterface>
+          <Name>LoopbackIP2</Name>
+          <AttachTo>Loopback2</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>10.21.0.64/32</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>10.21.0.64/32</a:PrefixStr>
+        </a:LoopbackIPInterface>
+        <a:LoopbackIPInterface>
+          <Name>LoopbackIP3</Name>
+          <AttachTo>Loopback3</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>10.21.64.2/32</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>10.21.64.2/32</a:PrefixStr>
+        </a:LoopbackIPInterface>
+       </LoopbackIPInterfaces>
+      <ManagementIPInterfaces xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+        <a:ManagementIPInterface>
+          <Name>HostIP</Name>
+          <AttachTo>eth0</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>10.0.0.100/24</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>10.0.0.100/24</a:PrefixStr>
+        </a:ManagementIPInterface>
+	<a:ManagementIPInterface>
+          <Name>HostIP</Name>
+          <AttachTo>eth0</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>2603:10e2:0:2902::8/64</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>2603:10e2:0:2902::8/64</a:PrefixStr>
+	</a:ManagementIPInterface>
+	<a:ManagementIPInterface>
+          <Name>HostIP1</Name>
+          <AttachTo>eth1</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>10.0.10.100/24</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>10.0.10.100/24</a:PrefixStr>
+	</a:ManagementIPInterface>
+	<a:ManagementIPInterface>
+          <Name>HostIP1</Name>
+          <AttachTo>eth1</AttachTo>
+          <a:Prefix xmlns:b="Microsoft.Search.Autopilot.Evolution">
+            <b:IPPrefix>2603:10e2:0:abcd::8/64</b:IPPrefix>
+          </a:Prefix>
+          <a:PrefixStr>2603:10e2:0:abcd::8/64</a:PrefixStr>
+	</a:ManagementIPInterface>
+      </ManagementIPInterfaces>
+      <ManagementVIPInterfaces xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution"/>
+      <MplsInterfaces/>
+      <MplsTeInterfaces/>
+      <RsvpInterfaces/>
+      <Hostname>switch-t0</Hostname>
+      <PortChannelInterfaces>
+        <PortChannel>
+          <Name>PortChannel01</Name>
+          <AttachTo>fortyGigE0/112</AttachTo>
+          <SubInterface/>
+        </PortChannel>
+        <PortChannel>
+          <Name>PortChannel02</Name>
+          <AttachTo>fortyGigE0/116</AttachTo>
+          <SubInterface/>
+        </PortChannel>
+        <PortChannel>
+          <Name>PortChannel03</Name>
+          <AttachTo>fortyGigE0/120</AttachTo>
+          <SubInterface/>
+        </PortChannel>
+        <PortChannel>
+          <Name>PortChannel04</Name>
+          <AttachTo>fortyGigE0/124</AttachTo>
+          <SubInterface/>
+        </PortChannel>
+      </PortChannelInterfaces>
+      <VlanInterfaces>
+        <VlanInterface>
+          <Name>Vlan1000</Name>
+          <AttachTo>fortyGigE0/4;fortyGigE0/8;fortyGigE0/12;fortyGigE0/16;fortyGigE0/20;fortyGigE0/24;fortyGigE0/28;fortyGigE0/32;fortyGigE0/36;fortyGigE0/40;fortyGigE0/44;fortyGigE0/48;fortyGigE0/52;fortyGigE0/56;fortyGigE0/60;fortyGigE0/64;fortyGigE0/68;fortyGigE0/72;fortyGigE0/76;fortyGigE0/80;fortyGigE0/84;fortyGigE0/88;fortyGigE0/92;fortyGigE0/96</AttachTo>
+          <NoDhcpRelay>False</NoDhcpRelay>
+          <StaticDHCPRelay>0.0.0.0/0</StaticDHCPRelay>
+          <FhrpProtoType i:nil="true"/>
+          <Type i:nil="true"/>
+          <DhcpRelays>192.0.0.1;192.0.0.2</DhcpRelays>
+          <Dhcpv6Relays>fc02:2000::1;fc02:2000::2</Dhcpv6Relays>
+          <VlanID>1000</VlanID>
+          <Tag>1000</Tag>
+          <Subnets>192.168.0.0/27</Subnets>
+          <MacAddress i:nil="true"/>
+          <SecondarySubnets/>
+        </VlanInterface>
+        <VlanInterface>
+          <Name>Vlan2000</Name>
+          <AttachTo>fortyGigE0/112;fortyGigE0/116;fortyGigE0/120</AttachTo>
+          <NoDhcpRelay>False</NoDhcpRelay>
+          <StaticDHCPRelay>0.0.0.0/0</StaticDHCPRelay>
+          <FhrpProtoType i:nil="true"/>
+          <Type i:nil="true"/>
+          <DhcpRelays></DhcpRelays>
+          <VlanID>2000</VlanID>
+          <Tag>2000</Tag>
+          <Subnets>192.168.200.0/27</Subnets>
+          <MacAddress i:nil="true"/>
+          <SecondarySubnets/>
+        </VlanInterface>
+        <VlanInterface>
+          <Name>Vlan99</Name>
+          <AttachTo>fortyGigE0/100</AttachTo>
+          <NoDhcpRelay>False</NoDhcpRelay>
+          <StaticDHCPRelay>0.0.0.0/0</StaticDHCPRelay>
+          <FhrpProtoType i:nil="true"/>
+          <Type>UserDefinedL2Vlan</Type>
+          <DhcpRelays>192.0.0.1;192.0.0.2</DhcpRelays>
+          <VlanID>99</VlanID>
+          <Tag>99</Tag>
+          <Subnets/>
+          <MacAddress i:nil="true"/>
+          <SecondarySubnets/>
+        </VlanInterface>
+        <VlanInterface>
+          <Name>Vlan98</Name>
+          <AttachTo>fortyGigE0/100;PortChannel01;PortChannel03</AttachTo>
+          <NoDhcpRelay>False</NoDhcpRelay>
+          <StaticDHCPRelay>0.0.0.0/0</StaticDHCPRelay>
+          <FhrpProtoType i:nil="true"/>
+          <Type>UserDefinedL2Vlan</Type>
+          <DhcpRelays>192.0.0.1;192.0.0.2</DhcpRelays>
+          <VlanID>98</VlanID>
+          <Tag>98</Tag>
+          <Subnets/>
+          <MacAddress i:nil="true"/>
+          <SecondarySubnets/>
+        </VlanInterface>
+      </VlanInterfaces>
+      <IPInterfaces>
+        <IPInterface>
+          <Name i:nil="true"/>
+          <AttachTo>PortChannel01</AttachTo>
+          <Prefix>10.0.0.56/31</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:Name="true"/>
+          <AttachTo>PortChannel01</AttachTo>
+          <Prefix>FC00::71/126</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:nil="true"/>
+          <AttachTo>PortChannel02</AttachTo>
+          <Prefix>10.0.0.58/31</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:Name="true"/>
+          <AttachTo>PortChannel02</AttachTo>
+          <Prefix>FC00::75/126</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:nil="true"/>
+          <AttachTo>PortChannel03</AttachTo>
+          <Prefix>10.0.0.60/31</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:Name="true"/>
+          <AttachTo>PortChannel03</AttachTo>
+          <Prefix>FC00::79/126</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:nil="true"/>
+          <AttachTo>PortChannel04</AttachTo>
+          <Prefix>10.0.0.62/31</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:Name="true"/>
+          <AttachTo>PortChannel04</AttachTo>
+          <Prefix>FC00::7D/126</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:nil="true"/>
+          <AttachTo>Vlan1000</AttachTo>
+          <Prefix>192.168.0.1/27</Prefix>
+        </IPInterface>
+        <IPInterface>
+          <Name i:nil="true"/>
+          <AttachTo>Vlan2000</AttachTo>
+          <Prefix>192.168.200.1/27</Prefix>
+        </IPInterface>
+      </IPInterfaces>
+      <DataAcls/>
+      <AclInterfaces>
+        <AclInterface>
+          <AttachTo>ERSPAN</AttachTo>
+          <InAcl>everflow</InAcl>
+          <Type>Everflow</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>ERSPANv6</AttachTo>
+          <InAcl>everflowV6</InAcl>
+          <Type>Everflow</Type>
+        </AclInterface>
+	<AclInterface>
+          <AttachTo>EGRESS_ERSPAN</AttachTo>
+	  <OutAcl>everflow_egress</OutAcl>
+	  <Type>Everflow</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>PortChannel01;PortChannel02;PortChannel03;PortChannel04</AttachTo>
+          <InAcl>DataAclIngress</InAcl>
+          <Type>DataPlane</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>PortChannel01;PortChannel02;Vlan98</AttachTo>
+          <OutAcl>DataAclEgress</OutAcl>
+          <Type>DataPlane</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>SNMP</AttachTo>
+          <InAcl>SNMP_ACL</InAcl>
+          <Type>SNMP</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>NTP</AttachTo>
+          <InAcl>NTP_ACL</InAcl>
+          <Type>NTP</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>SSH</AttachTo>
+          <InAcl>SSH_ACL</InAcl>
+          <Type>SSH</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>SSH</AttachTo>
+          <InAcl>ROUTER-PROTECT</InAcl>
+          <Type>SSH</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>SNMP</AttachTo>
+          <InAcl>ROUTER-PROTECT</InAcl>
+          <Type>SNMP</Type>
+        </AclInterface>
+        <AclInterface>
+          <AttachTo>NTP</AttachTo>
+          <InAcl>NTP_ACL</InAcl>
+        </AclInterface>
+      </AclInterfaces>
+      <DownstreamSummaries/>
+      <DownstreamSummarySet xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution"/>
+    </DeviceDataPlaneInfo>
+  </DpgDec>
+  <PngDec>
+    <DeviceInterfaceLinks>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <EndDevice>ARISTA01T1</EndDevice>
+        <EndPort>Ethernet1/1</EndPort>
+        <StartDevice>switch-t0</StartDevice>
+        <StartPort>fortyGigE0/112</StartPort>
+      </DeviceLinkBase>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <EndDevice>ARISTA02T1</EndDevice>
+        <EndPort>Ethernet1/1</EndPort>
+        <StartDevice>switch-t0</StartDevice>
+        <StartPort>fortyGigE0/116</StartPort>
+      </DeviceLinkBase>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <EndDevice>ARISTA03T1</EndDevice>
+        <EndPort>Ethernet1/1</EndPort>
+        <StartDevice>switch-t0</StartDevice>
+        <StartPort>fortyGigE0/120</StartPort>
+      </DeviceLinkBase>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <EndDevice>ARISTA04T1</EndDevice>
+        <EndPort>Ethernet1/1</EndPort>
+        <StartDevice>switch-t0</StartDevice>
+        <StartPort>fortyGigE0/124</StartPort>
+        <Bandwidth>100000</Bandwidth>
+      </DeviceLinkBase>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <Bandwidth>100000</Bandwidth>
+        <EndDevice>switch-t0</EndDevice>
+        <EndPort>fortyGigE0/4</EndPort>
+        <FlowControl>true</FlowControl>
+        <StartDevice>ARISTA05T1</StartDevice>
+        <StartPort>Ethernet1/33</StartPort>
+        <Validate>true</Validate>
+      </DeviceLinkBase>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <EndDevice>Servers0</EndDevice>
+        <EndPort>eth0</EndPort>
+        <StartDevice>switch-t0</StartDevice>
+        <StartPort>fortyGigE0/4</StartPort>
+      </DeviceLinkBase>
+      <DeviceLinkBase>
+        <ElementType>DeviceInterfaceLink</ElementType>
+        <EndDevice>Servers100</EndDevice>
+        <EndPort>eth0</EndPort>
+        <StartDevice>switch-t0</StartDevice>
+        <StartPort>fortyGigE0/100</StartPort>
+      </DeviceLinkBase>
+    </DeviceInterfaceLinks>
+    <Devices>
+      <Device i:type="ToRRouter">
+        <Hostname>switch-t0</Hostname>
+        <HwSku>Force10-S6000</HwSku>
+      </Device>
+      <Device i:type="LeafRouter">
+        <Hostname>ARISTA01T1</Hostname>
+        <HwSku>Arista</HwSku>
+      </Device>
+      <Device i:type="LeafRouter">
+        <Hostname>ARISTA02T1</Hostname>
+        <HwSku>Arista</HwSku>
+      </Device>
+      <Device i:type="LeafRouter">
+        <Hostname>ARISTA03T1</Hostname>
+        <HwSku>Arista</HwSku>
+      </Device>
+      <Device i:type="LeafRouter">
+        <Hostname>ARISTA04T1</Hostname>
+        <HwSku>Arista</HwSku>
+      </Device>
+    </Devices>
+  </PngDec>
+  <DeviceInfos>
+    <DeviceInfo>
+      <EthernetInterfaces xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet0</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet8</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet12</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet16</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet20</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet24</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet28</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet32</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet36</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet40</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet44</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet48</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet52</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet56</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet60</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet64</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet68</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet72</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet76</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet80</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet84</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet88</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet92</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet96</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet100</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet104</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet108</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet112</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet116</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+        <a:EthernetInterface>
+          <ElementType>DeviceInterface</ElementType>
+          <AlternateSpeeds i:nil="true"/>
+          <EnableFlowControl>true</EnableFlowControl>
+          <Index>1</Index>
+          <InterfaceName>Ethernet120</InterfaceName>
+          <InterfaceType i:nil="true"/>
+          <MultiPortsInterface>false</MultiPortsInterface>
+          <PortName>0</PortName>
+          <Priority>0</Priority>
+          <Speed>40000</Speed>
+        </a:EthernetInterface>
+      </EthernetInterfaces>
+      <HwSku>Force10-S6000</HwSku>
+      <ManagementInterfaces/>
+    </DeviceInfo>
+  </DeviceInfos>
+  <MetadataDeclaration>
+    <Devices xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+      <a:DeviceMetadata>
+        <a:Name>switch-t0</a:Name>
+        <a:Properties>
+          <a:DeviceProperty>
+            <a:Name>ErspanDestinationIpv4</a:Name>
+            <a:Reference i:nil="true"/>
+            <a:Value>2.2.2.2</a:Value>
+          </a:DeviceProperty>
+        </a:Properties>
+      </a:DeviceMetadata>
+    </Devices>
+    <Properties xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution"/>
+  </MetadataDeclaration>
+  <LinkMetadataDeclaration>
+    <Link xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+      <a:LinkMetadata>
+        <a:Name i:nil="true"/>
+        <a:Properties>
+          <a:DeviceProperty>
+            <a:Name>AutoNegotiation</a:Name>
+            <a:Reference i:nil="true"/>
+            <a:Value>True</a:Value>
+          </a:DeviceProperty>
+          <a:DeviceProperty>
+            <a:Name>FECDisabled</a:Name>
+            <a:Reference i:nil="true"/>
+            <a:Value>True</a:Value>
+          </a:DeviceProperty>
+        </a:Properties>
+        <a:Key>ARISTA05T1:Ethernet1/33;switch-t0:fortyGigE0/4</a:Key>
+      </a:LinkMetadata>
+      <a:LinkMetadata>
+        <a:Name i:nil="true"/>
+        <a:Properties>
+          <a:DeviceProperty>
+            <a:Name>AutoNegotiation</a:Name>
+            <a:Reference i:nil="true"/>
+            <a:Value>False</a:Value>
+          </a:DeviceProperty>
+          <a:DeviceProperty>
+            <a:Name>FECDisabled</a:Name>
+            <a:Reference i:nil="true"/>
+            <a:Value>True</a:Value>
+          </a:DeviceProperty>
+        </a:Properties>
+        <a:Key>ARISTA06T1:Ethernet1/34;switch-t0:fortyGigE0/8</a:Key>
+      </a:LinkMetadata>
+    </Link>
+  </LinkMetadataDeclaration>
+<MetadataDeclaration>
+ <Devices xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
+  <a:DeviceMetadata>
+   <a:Name>switch-t0</a:Name>
+   <a:Properties>
+    <a:DeviceProperty>
+     <a:Name>DeploymentId</a:Name>
+     <a:Reference i:nil="true"/>
+     <a:Value>1</a:Value>
+    </a:DeviceProperty>
+  </a:Properties>
+  </a:DeviceMetadata>
+ </Devices>
+ <Properties xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution"/>
+</MetadataDeclaration>
+  <Hostname>switch-t0</Hostname>
+  <HwSku>Force10-S6000</HwSku>
+</DeviceMiniGraph>
--- a/src/sonic-config-engine/tests/test_j2files.py
+++ b/src/sonic-config-engine/tests/test_j2files.py
@ -14,6 +14,7 @@ class TestJ2Files(TestCase):
        self.simple_minigraph = os.path.join(self.test_dir, 'simple-sample-graph.xml')
        self.t0_minigraph = os.path.join(self.test_dir, 't0-sample-graph.xml')
        self.t0_mvrf_minigraph = os.path.join(self.test_dir, 't0-sample-graph-mvrf.xml')
+        self.t0_two_mgmt_minigraph  = os.path.join(self.test_dir, 't0-sample-graph-two-mgmt.xml')
        self.pc_minigraph = os.path.join(self.test_dir, 'pc-test-graph.xml')
        self.t0_port_config = os.path.join(self.test_dir, 't0-sample-port-config.ini')
        self.l1_l3_port_config = os.path.join(self.test_dir, 'l1-l3-sample-port-config.ini')
@ -92,6 +93,10 @@ class TestJ2Files(TestCase):
        self.run_script(argument)
        self.assertTrue(utils.cmp(os.path.join(self.test_dir, 'sample_output', utils.PYvX_DIR, 'mvrf_interfaces'), self.output_file))

+        argument = '-m ' + self.t0_two_mgmt_minigraph + ' -p ' + self.t0_port_config + ' -a \'{\"hwaddr\":\"e4:1d:2d:a5:f3:ad\"}\' -t ' + interfaces_template + ' > ' + self.output_file
+        self.run_script(argument)
+        self.assertTrue(utils.cmp(os.path.join(self.test_dir, 'sample_output', utils.PYvX_DIR, 'two_mgmt_interfaces'), self.output_file), self.output_file)
+
    def test_ports_json(self):
        ports_template = os.path.join(self.test_dir, '..', '..', '..', 'dockers', 'docker-orchagent', 'ports.json.j2')
        argument = '-m ' + self.simple_minigraph + ' -p ' + self.t0_port_config + ' -t ' + ports_template + ' > ' + self.output_file