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doc: Add documentation for IS-IS SRv6 features

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Add documentation for IS-IS SRv6 functionalities (RFC 9352)

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
This commit is contained in:
Carmine Scarpitta 2023-06-03 13:53:33 +02:00
parent 6d22a6e5db
commit 69fca0a492
1 changed files with 61 additions and 0 deletions
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doc/user/isisd.rst
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@ -594,6 +594,40 @@ The following command show Flex-Algo information:
includes an 'algorithm (128-255)' optional argument. See includes an 'algorithm (128-255)' optional argument. See
:ref:`showing-isis-information` and :ref:`isis-segment-routing`. :ref:`showing-isis-information` and :ref:`isis-segment-routing`.
.. _isis-srv6:
Segment Routing over IPv6 (SRv6)
================================
This feature enables extensions in IS-IS to support Segment Routing over IPv6
data plane (SRv6) as per RFC 9352.
.. clicmd:: segment-routing srv6
Enable Segment Routing over IPv6 data plane (SRv6).
.. clicmd:: locator NAME
Specify the SRv6 locator to use for SRv6. The locator must be configured in
Zebra. Once the locator is configured, IS-IS automatically allocates prefix
SID and adjacency SIDs, creates local SID entries in the data plane, and
advertises them in the IGP domain.
.. clicmd:: interface NAME
Specify the dummy interface used to install SRv6 SIDs in the Linux data plane.
The interface must be created manually. By default, the interface is 'sr0'.
The interface can be created using the iproute2 utility:
.. code-block:: bash
ip link add sr0 type dummy
ip link set sr0 up
.. clicmd:: show isis segment-routing srv6 node
Show detailed information about all learned SRv6 Nodes.
Debugging ISIS Debugging ISIS
============== ==============
@ -774,6 +808,33 @@ A Segment Routing configuration, with IPv4, IPv6, SRGB and MSD configuration.
segment-routing prefix 2001:db8:1000::1/128 index 101 explicit-null segment-routing prefix 2001:db8:1000::1/128 index 101 explicit-null
! !
An SRv6 configuration:
.. code-block:: frr
hostname HOSTNAME
password PASSWORD
log file /var/log/isisd.log
!
!
interface eth0
ipv6 router isis FOO
ip router isis FOO
isis hello-interval 5
!
interface eth1
ip router isis FOO
!
!
router isis FOO
net 49.0001.1111.1111.1111.00
is-type level-2-only
metric-style wide
segment-routing srv6
locator loc1
!
line vty
.. _isis-vrf-config-examples: .. _isis-vrf-config-examples: