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BYGX-wcrprabhataravind
BYGX-wcr
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prabhataravind
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[YANG] Add srv6 yang model and unit tests (sonic-net#21175)
Why I did it To support the addition of two new tables in CONFIG_DB, i.e. SRV6_MY_SIDS and SRV6_MY_LOCATORS, in order to allow configuration for SRv6 in SONiC. Work item tracking Microsoft ADO (number only): 30513277 How I did it I define the YANG model based on SRv6 HLD. How to verify it Run the unit tests and build image.
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‎src/sonic-yang-models/doc/Configuration.md

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# SONiC Configuration Database Manual
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**Table of Contents**
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* [Introduction](#introduction)
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* [RADIUS](#radius)
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* [Static DNS](#static-dns)
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* [ASIC_SENSORS](#asic_sensors)
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* [SRv6](#srv6)
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* [For Developers](#for-developers)
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* [Generating Application Config by Jinja2 Template](#generating-application-config-by-jinja2-template)
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* [Incremental Configuration by Subscribing to ConfigDB](#incremental-configuration-by-subscribing-to-configdb)
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}
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```
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### SRv6
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The **SRV6_MY_SIDS** and **SRV6_MY_LOCATORS** tables introduce Segment Routing over IPv6 configuration.
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An example is as follows:
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```
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{
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"SRV6_MY_LOCATORS" : {
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"loc1" : {
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"prefix" : "FCBB:BBBB:20::"
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}
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}
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"SRV6_MY_SIDS" : {
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"loc1|FCBB:BBBB:20::" : {
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"action": "uN"
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},
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"loc1|FCBB:BBBB:20:F1::" : {
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"action": "uDT46",
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"decap_vrf": "default",
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"decap_dscp_mode": "pipe"
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}
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}
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}
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```
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### FIPS
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The FIPS table introduces FIPS configuration.

‎src/sonic-yang-models/tests/yang_model_tests/tests/srv6.json

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{
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"SRV6_VALID": {
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"desc": "Valid config"
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},
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"SRV6_MY_LOCATOR_INVALID_FUNC_LEN": {
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"desc": "A locator configured with invalid func_len",
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"eStrKey" : "Must"
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},
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"SRV6_MY_LOCATOR_INVALID_VRF": {
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"desc": "A locator configured with an invalid VRF name",
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"eStrKey" : "InvalidValue",
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"eStr": ["vrf"]
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},
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"SRV6_MY_SID_INVALID_LOCATOR": {
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"desc": "A SID configured with invalid locator identifier",
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"eStrKey" : "LeafRef"
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},
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"SRV6_MY_SID_INVALID_IP_ADDR": {
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"desc": "A SID configured with invalid IPv6 address",
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"eStrKey" : "Pattern"
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},
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"SRV6_MY_SID_UNMATCHED_IP_ADDR": {
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"desc": "A SID configured with an IPv6 Address that does not match with the prefix of the locator",
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"eStrKey" : "Must"
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},
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"SRV6_MY_SID_INVALID_ACTION": {
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"desc": "A SID configured with invalid action",
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"eStrKey" : "InvalidValue",
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"eStr": ["action"]
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},
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"SRV6_MY_SID_DSCP_MODE_WITH_UN": {
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"desc": "A SID configured with dscp_mode and uN action",
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"eStrKey" : "When",
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"eStr": ["action"]
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}
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}

‎src/sonic-yang-models/tests/yang_model_tests/tests_config/srv6.json

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{
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"SRV6_VALID": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:20::",
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"locator": "MAIN",
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"action": "uN"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_LOCATOR_INVALID_FUNC_LEN": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::",
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"func_len": 127
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:20::",
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"locator": "MAIN",
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"action": "uN"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_LOCATOR_INVALID_VRF": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::",
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"vrf": "Vrf1"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:20::",
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"locator": "MAIN",
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"action": "uN"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_SID_INVALID_LOCATOR": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:20::",
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"locator": "None",
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"action": "uN"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_SID_INVALID_IP_ADDR": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:200001::",
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"locator": "MAIN",
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"action": "uN"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_SID_UNMATCHED_IP_ADDR": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:21::",
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"locator": "MAIN",
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"action": "uN"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_SID_INVALID_ACTION": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:20::",
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"locator": "MAIN",
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"action": "uA"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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},
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"SRV6_MY_SID_DSCP_MODE_WITH_UN": {
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"sonic-srv6:sonic-srv6": {
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"sonic-srv6:SRV6_MY_LOCATORS": {
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"SRV6_MY_LOCATORS_LIST": [
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{
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"locator_name": "MAIN",
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"prefix": "FCBB:BBBB:20::"
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}
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]
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},
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"sonic-srv6:SRV6_MY_SIDS": {
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"SRV6_MY_SIDS_LIST": [
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{
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"ip_address": "FCBB:BBBB:20::",
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"locator": "MAIN",
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"action": "uN",
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"decap_dscp_mode": "uniform"
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},
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{
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"ip_address": "FCBB:BBBB:20:F1::",
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"locator": "MAIN",
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"action": "uDT46"
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}
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]
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}
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}
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}
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}

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