bridge: NetworkManager Reference Manual

## bridge bridge — Bridging Settings |

## Properties

Table 44.

Key Name | Value Type | Default Value | Value Description
--- | --- | --- | ---
    ageing-time
    uint32
    300
| The Ethernet MAC address aging time, in seconds.
    forward-delay
    uint32
    15
| The Spanning Tree Protocol (STP) forwarding delay, in seconds.
    group-address
    byte array
| If specified, The MAC address of the multicast group this bridge uses for STP. The address must be a link-local address in standard Ethernet MAC address format, ie an address of the form 01:80:C2:00:00:0X, with X in [0, 4..F]. If not specified the default value is 01:80:C2:00:00:00.
    group-forward-mask
    uint32
    0
| A mask of group addresses to forward. Usually, group addresses in the range from 01:80:C2:00:00:00 to 01:80:C2:00:00:0F are not forwarded according to standards. This property is a mask of 16 bits, each corresponding to a group address in that range that must be forwarded. The mask can't have bits 0, 1 or 2 set because they are used for STP, MAC pause frames and LACP.
    hello-time
    uint32
    2
| The Spanning Tree Protocol (STP) hello time, in seconds.
    interface-name
    string
| Deprecated in favor of connection.interface-name, but can be used for backward-compatibility with older daemons, to set the bridge's interface name.
    mac-address
    byte array
| If specified, the MAC address of bridge. When creating a new bridge, this MAC address will be set. If this field is left unspecified, the "ethernet.cloned-mac-address" is referred instead to generate the initial MAC address. Note that setting "ethernet.cloned-mac-address" anyway overwrites the MAC address of the bridge later while activating the bridge. Hence, this property is deprecated. Deprecated: 1
    max-age
    uint32
    20
| The Spanning Tree Protocol (STP) maximum message age, in seconds.
    multicast-querier
    boolean
    FALSE
| Enable or disable sending of multicast queries by the bridge. If not specified the option is disabled.
    multicast-query-use-ifaddr
    boolean
    FALSE
| If enabled the bridge's own IP address is used as the source address for IGMP queries otherwise the default of 0.0.0.0 is used.
    multicast-router
    string
| Sets bridge's multicast router. multicast-snooping must be enabled for this option to work. Supported values are: 'auto', 'disabled', 'enabled'. If not specified the default value is 'auto'.
    multicast-snooping
    boolean
    TRUE
| Controls whether IGMP snooping is enabled for this bridge. Note that if snooping was automatically disabled due to hash collisions, the system may refuse to enable the feature until the collisions are resolved.
    priority
    uint32
    32768
| Sets the Spanning Tree Protocol (STP) priority for this bridge. Lower values are "better"; the lowest priority bridge will be elected the root bridge.
    stp
    boolean
    TRUE
| Controls whether Spanning Tree Protocol (STP) is enabled for this bridge.
    vlan-default-pvid
    uint32
    1
| The default PVID for the ports of the bridge, that is the VLAN id assigned to incoming untagged frames.
    vlan-filtering
    boolean
    FALSE
| Control whether VLAN filtering is enabled on the bridge.
    vlan-protocol
    string
| If specified, the protocol used for VLAN filtering. Supported values are: '802.1Q', '802.1ad'. If not specified the default value is '802.1Q'.
    vlan-stats-enabled
    boolean
    FALSE
| Controls whether per-VLAN stats accounting is enabled.
    vlans
    array of vardict
| Array of bridge VLAN objects. In addition to the VLANs specified here, the bridge will also have the default-pvid VLAN configured by the bridge.vlan-default-pvid property. In nmcli the VLAN list can be specified with the following syntax: $vid [pvid] [untagged] [, $vid [pvid] [untagged]]... where $vid is either a single id between 1 and 4094 or a range, represented as a couple of ids separated by a dash.