Bug 1937380 - RFE: Support automatically configure network using LLDP
Summary: RFE: Support automatically configure network using LLDP
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: nmstate
Version: 8.5
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: Fernando F. Mancera
QA Contact: Mingyu Shi
Marc Muehlfeld
Depends On:
Blocks: 1935910
TreeView+ depends on / blocked
Reported: 2021-03-10 14:19 UTC by Fernando F. Mancera
Modified: 2021-11-09 20:19 UTC (History)
8 users (show)

Fixed In Version: nmstate-1.1.0-1.el8
Doc Type: Technology Preview
Doc Text:
.Network state configuration using `nmstate-autoconf` is now available as a Technology Preview Network devices can use the Link Layer Discovery Protocol (LLDP) to advertise their identity, capabilities, and neighbors in a LAN. This enhancement adds the `nmstate-autoconf` utility as a Technology Preview to the `nmstate` package. The `nmstate-autoconf` utility can use the LLDP information to automatically configure local network interfaces. For further details, see link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_networking/assembly_using-nmstate-autoconf-to-automatically-configure-the-network-state-using-lldp_configuring-and-managing-networking[Using nmstate-autoconf to automatically configure the network state using LLDP].
Clone Of:
Last Closed: 2021-11-09 17:43:40 UTC
Type: Bug
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Github nmstate nmstate pull 1658 0 None open WIP: nmstate-autoconf: introduce nmstate-autoconf support 2021-07-02 06:16:39 UTC
Red Hat Product Errata RHBA-2021:4157 0 None None None 2021-11-09 17:44:01 UTC

Description Fernando F. Mancera 2021-03-10 14:19:35 UTC
Description of problem:

User story:

As an user of Nmstate I want to configure the network state automatically based on the LLDP VLAN announced information. That mean Nmstate will use the LLDP information to identify the existing vlans and configure the interfaces.

Comment 10 Fernando F. Mancera 2021-07-02 06:16:42 UTC
Upstream patch: https://github.com/nmstate/nmstate/pull/1658

Comment 11 Gris Ge 2021-07-14 16:04:03 UTC
Tested upstream patch.

Current limitation is user need to manually enable LLDP on interfaces before call `nmstate-autoconf`.

Comment 14 Mingyu Shi 2021-07-29 02:49:51 UTC
Verified with versions:

The topology:
local   |  peer
veth0 --|-- a vlan with id 200
veth1 --|-- a vlan with id 255
veth2 --|-- a veth in bond0 --+
                              |-- a vlan(over bond0) with id 300
veth3 --|-- a veth in bond0 --+

Using default lldpd configuration, run nmstate-autoconf in local host:
# nmstate-autoconf -d 2> /dev/null
- name: veth0_ep.200
  type: vlan
  state: up
    base-iface: veth0
    id: 200
- name: veth1_ep.200
  type: vlan
  state: up
    base-iface: veth1
    id: 255
- name: bond300
  type: bond
  state: up
    mode: balance-rr
    - veth2
    - veth3
- name: bond0_p.300
  type: vlan
  state: up
    base-iface: bond300
    id: 300

Comment 25 errata-xmlrpc 2021-11-09 17:43:40 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (nmstate bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.


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