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doc: Update bridge man page on vlan-aware options.

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Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>
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Maximilian Wilhelm 2020-10-18 23:25:42 +02:00
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doc/interfaces-bridge.scd
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@ -27,6 +27,11 @@ See *ip-link*(8) for more details about the options listed below.
removed from the Forwarding DataBase (FDB) after not having
seen a frame with this source address.
*bridge-vlan-aware* _bool_
Denotes wether or not the bridge should be aware of 802.1q VLANs.
_bool_ can be given as _yes_/_no_ or _0_/_1_. The defaul is _no_.
See related options for configuring vlan-aware bridges, below.
# SPANNING TREE RELATED BRIDGE OPTIONS
*bridge-stp* _state_
@ -52,6 +57,51 @@ See *ip-link*(8) for more details about the options listed below.
after reception of its last STP hello message. Valid values
are between 6 and 40.
# OPTIONS FOR VLAN-AWARE-BRIDGES
The following options only have an effect on vlan-aware bridges and
their ports.
All settings can be applied on the bridge interface itself and all member
port iface stanzas. If applied on the bridge interface they take effect
for the bridge interface itself and might be inherited to _bridge-ports_
depending on the compatibility settings configured in *ifupdown-ng.conf*(5).
Configuring VLAN options on the bridge interface might be required for
setting up a VLAN interface to one of the VLANs carried within the bridge.
See the EXAMPLES section for an example for this scenario.
See *ifupdown-ng.conf*(5) for more information about compatiblity settings
mentioned below.
*bridge-access* _vlan ID_
Configure the given _vlan ID_ for untagged ingress and egress
on this interface. The common description for this kind of
configuration is called "access port".
*bridge-pvid* _vlan ID_
Denotes the _vlan ID_ to considered a PVID at ingress.
Any untagged frames received on this interface will be
assigned to this _vlan ID_. The default PVID is _1_.
If compatibility to ifupdown2 bridge port inheritance is active
a _bridge-pvid_ set on the bridge will be inherited to any
interface configured in _bridge-ports_ without a _bridge-pvid_ set.
*bridge-vids* _list of vlan IDs_
Denotes the space separated list of VLANs to be allowed tagged
ingress/egress on this interface.
If compatibility to ifupdown2 bridge port inheritance is active
a _bridge-vids_ set on the bridge will be inherited to any
interface configured in _bridge-ports_ without _bridge-vids_ set.
*bridge-allow-untagged* _bool_
Denotes wether or not the bridge should allow untagged frames on
ingress as well as egress. If set to _no_ untagged frames will be
droppped on ingress and none will be sent. _bool_ can be given as
_yes_/_no_ or _0_/_1_. The defaul is _yes_.
# EXAMPLES
A simple layer 2 only bridge:
@ -77,10 +127,46 @@ iface br0
address 2001:db8::42/64
```
A layer 2 only vlan-aware bridge:
```
auto bond0
iface bond0
bond-members eth0 eth1
bridge-vids 23 42 84 1337
auto br0
iface br0
bridge-ports bond0
```
A vlan-aware bridge with a VLAN interface on top:
```
auto eth0
iface eth0
bridge-vids 23 42 84 1337
auto br0
iface br0
bridge-ports eth0
bridge-vlan-aware yes
bridge-vids 42
auto vlan42
iface vlan42
vlan-raw-device br0
#
address 192.0.2.42/24
address 2001:db8::42/64
```
# SEE ALSO
*ip-link*(8)
*interfaces*(5)
*ifupdown-ng.conf*(5)
*ip-link*(8)
*bridge*(8)
# AUTHORS