Link groups are similar to port ranges found in managed switches. You can add network interfaces to a numbered group and perform operations on all the interfaces from that group at once.
89fe653544 network: Add support to group links.
man/systemd.network.xml | 9 +++++
src/network/networkd-link.c | 51 ++++++++++++++++++++++++
src/network/networkd-network-gperf.gperf | 1 +
src/network/networkd-network.h | 1 +
test/fuzz/fuzz-network-parser/directives.network | 1 +
5 files changed, 63 insertions(+)