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[202506] [sonic-yang-models]: Add ipv6_use_link_local_only to VLAN_SUB_INTERFACE YANG model #2738

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Merged
anish-n merged 1 commit into from
Jul 24, 2026
Merged

[202506] [sonic-yang-models]: Add ipv6_use_link_local_only to VLAN_SUB_INTERFACE YANG model #2738

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3 changes: 2 additions & 1 deletion src/sonic-yang-models/doc/Configuration.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1544,7 +1544,8 @@ These tables have a number of shared attributes as described below:
"VLAN_SUB_INTERFACE": {
"Ethernet0.555": {
"vrf_name": "Blue",
"vlan": "555"
"vlan": "555",
"ipv6_use_link_local_only": "enable"
}
}
}
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3 changes: 2 additions & 1 deletion src/sonic-yang-models/tests/files/sample_config_db.json
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Expand Up @@ -1271,7 +1271,8 @@
"VLAN_SUB_INTERFACE": {
"Ethernet12.10": {
"admin_status": "up",
"loopback_action": "drop"
"loopback_action": "drop",
"ipv6_use_link_local_only": "enable"
},
"Ethernet12.10|10.0.1.56/31": {},
"Ethernet12.10|fc00::1:71/126": {},
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9 changes: 8 additions & 1 deletion src/sonic-yang-models/tests/yang_model_tests/tests/vlan_sub_interface.json
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Expand Up @@ -71,7 +71,14 @@
"desc": "Configure PortChannel VLAN sub interface with VNET reference."
},
"VLAN_SUB_INTERFACE_WITH_MISSING_VNET": {
"desc": "Configure VLAN sub interface with VNET reference but no VNET exsiting.",
"desc": "Configure VLAN sub interface with VNET reference but no VNET existing.",
"eStrKey": "LeafRef"
},
"VLAN_SUB_INTERFACE_ENABLE_IPV6_LINK_LOCAL": {
"desc": "Configure VLAN sub interface with ipv6_use_link_local_only enabled."
},
"VLAN_SUB_INTERFACE_INVALID_IPV6_LINK_LOCAL": {
"desc": "Configure VLAN sub interface with an invalid ipv6_use_link_local_only value.",
"eStr": "Invalid value \"true\" in \"ipv6_use_link_local_only\" element."
}
}
54 changes: 54 additions & 0 deletions src/sonic-yang-models/tests/yang_model_tests/tests_config/vlan_sub_interface.json
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Expand Up @@ -779,5 +779,59 @@
]
}
}
},
"VLAN_SUB_INTERFACE_ENABLE_IPV6_LINK_LOCAL": {
"sonic-vlan-sub-interface:sonic-vlan-sub-interface": {
"sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
"VLAN_SUB_INTERFACE_LIST": [
{
"name": "Ethernet8.10",
"ipv6_use_link_local_only": "enable"
}
]
}
},
"sonic-port:sonic-port": {
"sonic-port:PORT": {
"PORT_LIST": [
{
"name": "Ethernet8",
"admin_status": "up",
"alias": "Ethernet8/1",
"description": "Ethernet8",
"lanes": "45,46,47,48",
"mtu": 9000,
"speed": 100000
}
]
}
}
},
"VLAN_SUB_INTERFACE_INVALID_IPV6_LINK_LOCAL": {
"sonic-vlan-sub-interface:sonic-vlan-sub-interface": {
"sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
"VLAN_SUB_INTERFACE_LIST": [
{
"name": "Ethernet8.10",
"ipv6_use_link_local_only": "true"
}
]
}
},
"sonic-port:sonic-port": {
"sonic-port:PORT": {
"PORT_LIST": [
{
"name": "Ethernet8",
"admin_status": "up",
"alias": "Ethernet8/1",
"description": "Ethernet8",
"lanes": "45,46,47,48",
"mtu": 9000,
"speed": 100000
}
]
}
}
}
}
16 changes: 13 additions & 3 deletions src/sonic-yang-models/yang-models/sonic-vlan-sub-interface.yang
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Expand Up @@ -28,9 +28,13 @@ module sonic-vlan-sub-interface {

description "VLAN sub interface for SONiC OS";

revision 2025-03-06 {
description "Add leaf vnet_name";
}
revision 2026-07-20 {
description "Add leaf ipv6_use_link_local_only";
}

revision 2025-03-06 {
description "Add leaf vnet_name";
}

revision 2021-11-11 {
description "Initial version";
Expand Down Expand Up @@ -89,6 +93,12 @@ module sonic-vlan-sub-interface {
}
}

leaf ipv6_use_link_local_only {
description "Enable/Disable IPv6 link local address on vlan sub-interface";
type stypes:mode-status;
default disable;
}

leaf loopback_action {
description "Packet action when a packet ingress and gets routed on the same IP interface";
type stypes:loopback_action;
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