SRv6 Tunnel Configuration

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show segment-routing srv6 locator

[Command] show segment-routing srv6 locator

[Purpose] Display the SRv6 locator configuration for the current configuration

[View]

System View

[Use Cases]

sonic# show segment-routing srv6 locator
Locator:
Name                 ID      Prefix                   Status
-------------------- ------- ------------------------ -------
test                       1 2001::/64                Up

show segment-routing srv6 local sid

[Command] show segment-routing srv6 local sid

[Purpose] Display the currently active SID table entries for the device

[View] System View

[Use Cases]

sonic# show segment-routing srv6 local sid
+---------------+----------+-------+---------------------------+
| Sid           | Action   | Vrf   | Adj                       |
+===============+==========+=======+===========================+
| 2001::        | End      |       |                           |
+---------------+----------+-------+---------------------------+
| 2001::22      | End      |       |                           |
+---------------+----------+-------+---------------------------+
| 2001::1:0:0:0 | End_X    |       | fe80::62eb:5aff:fe01:12f1 |
+---------------+----------+-------+---------------------------+
| 2001::2:0:0:0 | End_X    |       | fe80::76fe:48ff:fe8b:e63e |
+---------------+----------+-------+---------------------------+

show segment-routing srv6 manager

[Command] show segment-routing srv6 manager

[Purpose] Display the source IP address for the currently configured SRV6 encapsulation

[View] System View

[Use Cases]

sonic# show segment-routing srv6 manager
Parameters:
  Encapsulation:
    Source Address:
      Configured: 1099::1

show bgp segment-routing srv6

[Command] show bgp segment-routing srv6

[Purpose] Display BGP and SRV6 binding information

[View] System View

[Use Cases]

sonic# show bgp segment-routing srv6
locator_name: test
  prefix: 2500::/64
  block-length: 40
  node-length: 24
  func-length: 16
  arg-length: 0
locator_chunks:
functions:
- sid: 2500::2:0:0:0
  locator: test
- sid: 2500::1:0:0:0
  locator: test
- sid: 2500::1:0:0:0
  locator: test
bgps:
- name: 100
  vpn_policy[AFI_IP].tovpn_sid: 2500::2:0:0:0
  vpn_policy[AFI_IP6].tovpn_sid: 2500::1:0:0:0
  per-vrf tovpn_sid: (null)
- name: default
  vpn_policy[AFI_IP].tovpn_sid: (null)
  vpn_policy[AFI_IP6].tovpn_sid: (null)
  per-vrf tovpn_sid: (null)

locator

[Command] locator* locator_name* no locator* locator_name*

[Purpose] Bind the SRv6 locator in the corresponding view

[Parameter]

Parameter	Description
locator_name	The instance name of the SRv6 locator

[View] ISIS/BGP SRv6 Configuration Overview [Use Cases]

sonic# configure
sonic(config)# router bgp 1024
sonic(config-router)# segment-routing srv6
sonic(config-router-srv6)# locator test

source-address

[Command] source-address* X:X::X:X* no source-address

[Purpose] Configure the source IP in the SRV6 tunnel header to a specified IPv6 address

[View] Encapsulation Configuration View

[Use Cases]

sonic# configure
sonic(config)# segment-routing
sonic(config-sr)# srv6
sonic(config-srv6)# encapsulation
sonic(config-srv6-encap)# source-address 1000::1

prefix

[Command] prefix* X:X::X:X/M*no prefix[Purpose] Specify the address prefix used by the SRV6 locator [View] Locator Configuration View [Notes] Only one instance of this prefix can be configured within a single locator.[Use Cases]```bash sonic# configure sonic(config)# segment-routing sonic(config-sr)# srv6 sonic(config-srv6)# locators sonic(config-srv6-locators)# locator test123 sonic(config-srv6-locator)# prefix 4000::/64

### sid vpn per-vrf export **\[Command]****sid vpn per-vrf export \{auto|***value***}****no sid vpn per-vrf export****\[Purpose]** Configure SID entries **\[Parameter]**|**Parameter**|**Description**                                                                 |
| ------------- | ------------------------------------------------------------------------------- |
| auto                | Automatically generate SID entries                                              |
| *value*       | Generate SID entries based on the configured parameters, value range: 1-1048575 |

**\[View]**
BGP Configuration Views

**\[Use Cases]**

```bash
sonic# configure
sonic(config)# router bgp 1024 vrf 100
sonic(config-router)# sid vpn per-vrf export auto

sid vpn export

[Command] sid vpn export {auto|* value***}** no sid vpn export

[Purpose] Configure SID entries

[Parameter]

Parameter	Description
auto	Automatically generate SID entries
value	Generate SID entries based on the configured parameters, value range: 1-1048575

[View] BGP Address Family Configuration Views

[Use Cases]

sonic# configure
sonic(config)# router bgp 1024 vrf 100
sonic(config-router)# sid vpn per-vrf export auto

sid vpn export

[Command] sid vpn export {auto|* value***}** no sid vpn export

[Purpose] Configure SID entries

[Parameter]

Parameter	Description
auto	Automatically generate SID entries
value	Generate SID entries based on the configured parameters, value range: 1-1048575

[View] BGP Address Family Configuration Views

[Use Cases]

sonic# configure
sonic(config)# router bgp 1024 vrf 100
sonic(config-router)# address-family ipv4 unicast
sonic(config-router-af)# sid vpn export auto

ipv6 route segments

[Command] ipv6 route* X:X::X:X/M* XX::XXsegments* sid_number***/*** sid_number*****no ipv6 route* X:X::X:X/M* XX::XX

[Purpose] Configure static SRV6 routing and specify the SRv6 forwarding path

[Parameter]

Parameter	Description
XX::XX	IPv6 local loopback address; specifies the outgoing interface for the route
sid_number	The SID and END addresses of the SRV6 tunnel node devices, with different nodes separated by “/” in sequence

[View] VRF Configuration View

[Notes] The final node in the SRv6 forwarding path must use the addresses SID END.DT4, SID END.DT6, and SID END.DT46.

[Use Cases]

sonic# configure
sonic(config)# vrf 100
sonic(config-vrf)# ipv6 route 1023::/64 fe80::62eb:5aff:fe00:24d3 segments 2001::/2002::/2003::/2004::2:0:0:0

loopback

[Command] loopback {internal|binding srv6} no loopback [binding srv6]

[Purpose] Configure the interface for loopback mode

[Parameter]

Parameter	Description
internal	Set the interface to loopback mode
binding srv6	Bind to SRV6 and encapsulate the tunnel header for the SRV6 tunnel

[View] Interface Configuration View

[Notes] Once an interface is set to loopback mode, it will automatically come up. For SRv6 TE mode, interfaces not in use by the device must be set to loopback mode and bound to SRv6 in order to encapsulate tunnel headers for SRv6 traffic.

[Use Cases]

sonic# configure
sonic(config)# interface ethernet 10
sonic(config-if-10)# loopback internal
sonic(config-if-10)# loopback binding srv6