Refactor(eos_designs)!: WAN default MTU set to 9194 for Dps and WAN H…

…A interfaces and for LAN uplink interfaces added `p2p_uplinks_mtu` support in platform settings (#4415)
aristanetworks · Sep 12, 2024 · 0f2131f · 0f2131f
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diff --git a/ansible_collections/arista/avd/docs/porting-guides/5.x.x.md b/ansible_collections/arista/avd/docs/porting-guides/5.x.x.md
@@ -415,6 +415,59 @@ To retain the previous behaviour, set the value to `false`:
 +shutdown_interfaces_towards_undeployed_peers: false
 ```
 
+### Default MTU value changed from `9214` to `9194` for Dps1, WAN HA and WAN p2p uplink interfaces
+
+In AVD 4.0.0, the default MTU for Dps1, WAN HA and WAN p2p uplink interfaces was `9214`.
+In AVD 5.0.0, the default MTU for Dps1, WAN HA and WAN p2p uplink interfaces has been changed to `9194`.
+
+To retain the old MTU on WAN HA interfaces use `<node_type>.defaults/node_groups[]/node_groups[].nodes[]/nodes[].wan_ha.mtu` as `9214`.
+
+```diff
+wan_router:
+  node_groups:
+    - group: SITE_HA_ENABLED
+      wan_ha:
+        enabled: true
+        ha_interfaces: [Ethernet52]
++       mtu: 9214
+```
+
+To retain the old MTU on Dps1 interface use custom structured configuration
+
+```diff
+custom_structured_configuration_dps_interfaces:
+  - name: Dps1
++   mtu: 9214
+```
+
+To retain the old MTU on WAN p2p uplink interfaces use custom_platform_settings
+
+```diff
+custom_platform_settings:
+  - feature_support:
+      bgp_update_wait_for_convergence: true
+      bgp_update_wait_install: false
+      interface_storm_control: false
+      queue_monitor_length_notify: false
+    management_interface: Management1/1
++   p2p_uplinks_mtu: 9214
+    platforms:
+      - AWE-5310
+      - AWE-5510
+      - AWE-7250R
+      - AWE-7230R
+  - feature_support:
+      bgp_update_wait_for_convergence: true
+      bgp_update_wait_install: false
+      interface_storm_control: false
+      poe: true
+      queue_monitor_length_notify: false
+    management_interface: Management1
++   p2p_uplinks_mtu: 9214
+    platforms:
+      - AWE-7220R
+```
+
 ## Changes to role `arista.avd.eos_cli_config_gen`
 
 TODO: Level 3 sections for each change with details on how to migrate

diff --git a/ansible_collections/arista/avd/docs/release-notes/5.x.x.md b/ansible_collections/arista/avd/docs/release-notes/5.x.x.md
@@ -150,6 +150,12 @@ Previously it also accepted a string, which was autoconverted to a list.
 
 See the [porting guide](../porting-guides/5.x.x.md#) for details.
 
+#### Default MTU value changed from `9214` to `9194` for Dps1, WAN HA and WAN p2p uplink interfaces
+
+Starting AVD 5.0.0, the default MTU for Dps1, WAN HA and WAN p2p uplink interfaces changed from `9214` to `9194`.
+
+See the [porting guide](../porting-guides/5.x.x.md#default-mtu-value-changed-from-9214-to-9194-for-dps1-wan-ha-and-wan-p2p-uplink-interfaces) for details.
+
 #### ipv6_virtual_router_addresses are now configured if ipv6_enable is true on SVIs
 
 For SVIs with `ipv6_virtual_router_addresses` set, AVD versions below 5.0.0 only rendered the configuration if `ipv6_address`

diff --git a/...a/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-edge-no-default-policy.cfg b/...a/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-edge-no-default-policy.cfg
@@ -86,7 +86,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.255.1/32
 !

diff --git a/..._collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-edge.cfg b/..._collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-edge.cfg
@@ -109,7 +109,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.130.1/32
 !

diff --git a/...e_collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-rr1.cfg b/...e_collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-rr1.cfg
@@ -95,7 +95,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.131.1/32
 !

diff --git a/...e_collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-rr2.cfg b/...e_collections/arista/avd/molecule/eos_designs_unit_tests/intended/configs/autovpn-rr2.cfg
@@ -95,7 +95,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.131.2/32
 !

diff --git a/..._designs_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-edge-1.cfg b/..._designs_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-edge-1.cfg
@@ -136,7 +136,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.1/32
 !

diff --git a/..._designs_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-edge-2.cfg b/..._designs_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-edge-2.cfg
@@ -136,7 +136,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.2/32
 !

diff --git a/..._designs_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-edge-3.cfg b/..._designs_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-edge-3.cfg
@@ -136,7 +136,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.3/32
 !

diff --git a/...ns_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-pathfinder-1.cfg b/...ns_unit_tests/intended/configs/cv-pathfinder-custom-control-plane-policy-pathfinder-1.cfg
@@ -143,7 +143,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.144.1/32
 !

diff --git a/...cule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge-custom-default-policy.cfg b/...cule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge-custom-default-policy.cfg
@@ -148,7 +148,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware custom_flow_track_name
    ip address 192.168.255.1/32
 !

diff --git a/...molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge-no-default-policy.cfg b/...molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge-no-default-policy.cfg
@@ -142,7 +142,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.255.1/32
 !

diff --git a/...ctions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge.cfg b/...ctions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge.cfg
@@ -295,7 +295,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.1/32
 !

diff --git a/...tions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge1.cfg b/...tions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge1.cfg
@@ -313,7 +313,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.2/32
 !

diff --git a/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge2A.cfg b/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge2A.cfg
@@ -210,7 +210,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.2/32
 !

diff --git a/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge2B.cfg b/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge2B.cfg
@@ -221,7 +221,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.3/32
 !

diff --git a/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge3A.cfg b/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge3A.cfg
@@ -187,7 +187,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.6/32
 !
@@ -201,6 +201,7 @@ interface Ethernet1
 interface Ethernet52
    description DIRECT LAN HA LINK
    no shutdown
+   mtu 9100
    no switchport
    ip address 10.10.10.0/31
 !

diff --git a/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge3B.cfg b/...ions/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-edge3B.cfg
@@ -198,7 +198,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.142.7/32
 !
@@ -211,6 +211,7 @@ interface Ethernet2
 interface Ethernet52
    description DIRECT LAN HA LINK
    no shutdown
+   mtu 9100
    no switchport
    ip address 10.10.10.1/31
 !

diff --git a/.../arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-pathfinder.cfg b/.../arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-pathfinder.cfg
@@ -237,7 +237,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.144.1/32
 !

diff --git a/...arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-pathfinder1.cfg b/...arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-pathfinder1.cfg
@@ -240,7 +240,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.144.2/32
 !

diff --git a/...arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-pathfinder2.cfg b/...arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-pathfinder2.cfg
@@ -247,7 +247,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.144.3/32
 !

diff --git a/...s/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-transit1A.cfg b/...s/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-transit1A.cfg
@@ -285,7 +285,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.143.1/32
 !

diff --git a/...s/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-transit1B.cfg b/...s/arista/avd/molecule/eos_designs_unit_tests/intended/configs/cv-pathfinder-transit1B.cfg
@@ -266,7 +266,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.143.2/32
 !

diff --git a/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/configs/uplink_lan_wan_router1.cfg b/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/configs/uplink_lan_wan_router1.cfg
@@ -95,7 +95,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.2.1/32
 !
@@ -108,7 +108,7 @@ interface Ethernet1
 interface Ethernet2
    description UPLINK_LAN_L2LEAF_Ethernet1
    no shutdown
-   mtu 9214
+   mtu 9218
    no switchport
    flow tracker hardware FLOW-TRACKER
    vrf VRF1

diff --git a/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/configs/uplink_lan_wan_router2.cfg b/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/configs/uplink_lan_wan_router2.cfg
@@ -95,7 +95,7 @@ ip security
 !
 interface Dps1
    description DPS Interface
-   mtu 9214
+   mtu 9194
    flow tracker hardware FLOW-TRACKER
    ip address 192.168.2.2/32
 !
@@ -108,13 +108,13 @@ interface Ethernet1
 interface Ethernet2
    description UPLINK_LAN_L2LEAF_Ethernet2
    no shutdown
-   mtu 9214
+   mtu 9218
    no switchport
 !
 interface Ethernet2.10
    description VLAN10_NATIVE
    no shutdown
-   mtu 9214
+   mtu 9218
    encapsulation dot1q vlan 10
    flow tracker hardware FLOW-TRACKER
    vrf VRF1

diff --git a/...ule/eos_designs_unit_tests/intended/structured_configs/autovpn-edge-no-default-policy.yml b/...ule/eos_designs_unit_tests/intended/structured_configs/autovpn-edge-no-default-policy.yml
@@ -273,7 +273,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.255.1/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...s/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/autovpn-edge.yml b/...s/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/autovpn-edge.yml
@@ -295,7 +295,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.130.1/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/autovpn-rr1.yml b/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/autovpn-rr1.yml
@@ -261,7 +261,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.131.1/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/autovpn-rr2.yml b/...ns/arista/avd/molecule/eos_designs_unit_tests/intended/structured_configs/autovpn-rr2.yml
@@ -263,7 +263,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.131.2/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...it_tests/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-edge-1.yml b/...it_tests/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-edge-1.yml
@@ -411,7 +411,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.142.1/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...it_tests/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-edge-2.yml b/...it_tests/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-edge-2.yml
@@ -411,7 +411,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.142.2/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...it_tests/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-edge-3.yml b/...it_tests/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-edge-3.yml
@@ -362,7 +362,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.142.3/32
   flow_tracker:
     hardware: FLOW-TRACKER

diff --git a/...ts/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-pathfinder-1.yml b/...ts/intended/structured_configs/cv-pathfinder-custom-control-plane-policy-pathfinder-1.yml
@@ -407,7 +407,7 @@ application_traffic_recognition:
 dps_interfaces:
 - name: Dps1
   description: DPS Interface
-  mtu: 9214
+  mtu: 9194
   ip_address: 192.168.144.1/32
   flow_tracker:
     hardware: FLOW-TRACKER