BRIDGE
Section: Linux (8)
Updated: 1 August 2012
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NAME
bridge - show / manipulate bridge addresses and devices
SYNOPSIS
bridge
[ OPTIONS ] OBJECT { COMMAND |
help }
OBJECT := {
link | fdb | mdb | vlan | vni | monitor }
OPTIONS := {
-V[ersion] |
-s[tatistics] |
-n[etns] name |
-b[atch] filename |
-c[olor] |
-p[retty] |
-j[son] |
-o[neline] }
bridge link set
dev
DEV [
cost
COST ] [
priority
PRIO ] [
state
STATE ] [
guard { on | off } ] [
hairpin { on | off } ] [
fastleave { on | off } ] [
root_block { on | off } ] [
learning { on | off } ] [
learning_sync { on | off } ] [
flood { on | off } ] [
hwmode { vepa | veb } ] [
bcast_flood { on | off } ] [
mcast_flood { on | off } ] [
mcast_router
MULTICAST_ROUTER ] [
mcast_to_unicast { on | off } ] [
neigh_suppress { on | off } ] [
vlan_tunnel { on | off } ] [
isolated { on | off } ] [
locked { on | off } ] [
backup_port
DEVICE ] [
nobackup_port ] [
self ] [ master ]
bridge link [ show ] [
dev
DEV ]
bridge fdb { add | append | del | replace }
LLADDR
dev
DEV {
local | static | dynamic } [
self ] [ master ] [ router ] [ use ] [ extern_learn ] [ sticky ] [
src_vni
VNI ] { [
dst
IPADDR ] [
vni
VNI ] [
port
PORT ] [
via
DEVICE ] |
nhid
NHID }
bridge fdb [ [ show ] [
br
BRDEV ] [
brport
DEV ] [
vlan
VID ] [
state
STATE ] [
dynamic
] ]
bridge fdb get [
to
]
LLADDR [
br
BRDEV ]
{ brport | dev }
DEV [
vlan
VID ] [
vni
VNI ] [
self ] [ master ] [ dynamic ]
bridge fdb flush
dev
DEV [
brport
DEV ] [
vlan
VID ] [
self ] [ master ] [
[no]permanent | [no]static | [no]dynamic ] [
[no]added_by_user ] [ [no]extern_learn ] [
[no]sticky ] [ [no]offloaded ]
bridge mdb { add | del }
dev
DEV
port
PORT
grp
GROUP [
src
SOURCE ] [
permanent | temp ] [
vid
VID ]
bridge mdb show [
dev
DEV ]
bridge vlan { add | del }
dev
DEV
vid
VID [
tunnel_info
TUNNEL_ID ] [
pvid ] [ untagged ] [
self ] [ master ]
bridge vlan set
dev
DEV
vid
VID [
state
STP_STATE ] [
mcast_router
MULTICAST_ROUTER ]
bridge vlan [ show | tunnelshow ] [
dev
DEV ]
bridge vlan global set
dev
DEV
vid
VID [
mcast_snooping
MULTICAST_SNOOPING ] [
mcast_querier
MULTICAST_QUERIER ] [
mcast_igmp_version
IGMP_VERSION ] [
mcast_mld_version
MLD_VERSION ] [
mcast_last_member_count
LAST_MEMBER_COUNT ] [
mcast_last_member_interval
LAST_MEMBER_INTERVAL ] [
mcast_startup_query_count
STARTUP_QUERY_COUNT ] [
mcast_startup_query_interval
STARTUP_QUERY_INTERVAL ] [
mcast_membership_interval
MEMBERSHIP_INTERVAL ] [
mcast_querier_interval
QUERIER_INTERVAL ] [
mcast_query_interval
QUERY_INTERVAL ] [
mcast_query_response_interval
QUERY_RESPONSE_INTERVAL ]
bridge vlan global [ show ] [
dev
DEV ] [
vid
VID ]
bridge vlan show [
dev
DEV ]
bridge vni { add | del }
dev
DEV
vni
VNI [ {
group | remote }
IPADDR ]
bridge vni show [
dev
DEV ]
bridge monitor [ all | neigh | link | mdb | vlan ]
OPTIONS
- -V, -Version
-
print the version of the
bridge
utility and exit.
- -s, -stats, -statistics
-
output more information. If this option
is given multiple times, the amount of information increases.
As a rule, the information is statistics or some time values.
- -d, -details
-
print detailed information about bridge vlan filter entries or MDB router ports.
- -n, -net, -netns <NETNS>
-
switches
bridge
to the specified network namespace
NETNS.
Actually it just simplifies executing of:
ip netns exec
NETNS
bridge
[ OPTIONS ] OBJECT { COMMAND |
help }
to
bridge
-n[etns] NETNS [ OPTIONS ] OBJECT { COMMAND |
help }
- -b, -batch <FILENAME>
-
Read commands from provided file or standard input and invoke them.
First failure will cause termination of bridge command.
- -force
-
Don't terminate bridge command on errors in batch mode.
If there were any errors during execution of the commands, the application
return code will be non zero.
- -c[color][={always|auto|never}
-
Configure color output. If parameter is omitted or
always,
color output is enabled regardless of stdout state. If parameter is
auto,
stdout is checked to be a terminal before enabling color output. If parameter is
never,
color output is disabled. If specified multiple times, the last one takes
precedence. This flag is ignored if
-json
is also given.
- -j, -json
-
Output results in JavaScript Object Notation (JSON).
- -p, -pretty
-
When combined with -j generate a pretty JSON output.
- -o, -oneline
-
output each record on a single line, replacing line feeds
with the
'\'
character. This is convenient when you want to count records
with
wc(1)
or to
grep(1)
the output.
BRIDGE - COMMAND SYNTAX
OBJECT
- link
-
- Bridge port.
- fdb
-
- Forwarding Database entry.
- mdb
-
- Multicast group database entry.
- vlan
-
- VLAN filter list.
- vni
-
- VNI filter list.
COMMAND
Specifies the action to perform on the object.
The set of possible actions depends on the object type.
As a rule, it is possible to
add, delete
and
show
(or
list
) objects, but some objects do not allow all of these operations
or have some additional commands. The
help
command is available for all objects. It prints
out a list of available commands and argument syntax conventions.
If no command is given, some default command is assumed.
Usually it is
list
or, if the objects of this class cannot be listed,
help.
bridge link - bridge port
link
objects correspond to the port devices of the bridge.
The corresponding commands set and display port status and bridge specific
attributes.
bridge link set - set bridge specific attributes on a port
- dev NAME
-
interface name of the bridge port
- cost COST
-
the STP path cost of the specified port.
- priority PRIO
-
the STP port priority. The priority value is an unsigned 8-bit quantity
(number between 0 and 255). This metric is used in the designated port an
droot port selection algorithms.
- state STATE
-
the operation state of the port. Except state 0 (disable STP or BPDU filter feature),
this is primarily used by user space STP/RSTP
implementation. One may enter port state name (case insensitive), or one of the
numbers below. Negative inputs are ignored, and unrecognized names return an
error.
0
- port is in STP
DISABLED
state. Make this port completely inactive for STP. This is also called
BPDU filter and could be used to disable STP on an untrusted port, like
a leaf virtual devices.
1
- port is in STP
LISTENING
state. Only valid if STP is enabled on the bridge. In this
state the port listens for STP BPDUs and drops all other traffic frames.
2
- port is in STP
LEARNING
state. Only valid if STP is enabled on the bridge. In this
state the port will accept traffic only for the purpose of updating MAC
address tables.
3
- port is in STP
FORWARDING
state. Port is fully active.
4
- port is in STP
BLOCKING
state. Only valid if STP is enabled on the bridge. This state
is used during the STP election process. In this state, port will only process
STP BPDUs.
- guard on or guard off
-
Controls whether STP BPDUs will be processed by the bridge port. By default,
the flag is turned off allowed BPDU processing. Turning this flag on will
disables
the bridge port if a STP BPDU packet is received.
If running Spanning Tree on bridge, hostile devices on the network
may send BPDU on a port and cause network failure. Setting
guard on
will detect and stop this by disabling the port.
The port will be restarted if link is brought down, or
removed and reattached. For example if guard is enable on
eth0:
ip link set dev eth0 down; ip link set dev eth0 up
- hairpin on or hairpin off
-
Controls whether traffic may be send back out of the port on which it was
received. This option is also called reflective relay mode, and is used to support
basic VEPA (Virtual Ethernet Port Aggregator) capabilities.
By default, this flag is turned off and the bridge will not forward
traffic back out of the receiving port.
- fastleave on or fastleave off
-
This flag allows the bridge to immediately stop multicast traffic on a port
that receives IGMP Leave message. It is only used with IGMP snooping is
enabled on the bridge. By default the flag is off.
- root_block on or root_block off
-
Controls whether a given port is allowed to become root port or not. Only used
when STP is enabled on the bridge. By default the flag is off.
This feature is also called root port guard.
If BPDU is received from a leaf (edge) port, it should not
be elected as root port. This could be used if using STP on a bridge and the downstream bridges are not fully
trusted; this prevents a hostile guest from rerouting traffic.
- learning on or learning off
-
Controls whether a given port will learn MAC addresses from received traffic or
not. If learning if off, the bridge will end up flooding any traffic for which
it has no FDB entry. By default this flag is on.
- learning_sync on or learning_sync off
-
Controls whether a given port will sync MAC addresses learned on device port to
bridge FDB.
- flood on or flood off
-
Controls whether unicast traffic for which there is no FDB entry will be
flooded towards this given port. By default this flag is on.
- hwmode
-
Some network interface cards support HW bridge functionality and they may be
configured in different modes. Currently support modes are:
vepa
- Data sent between HW ports is sent on the wire to the external
switch.
veb
- bridging happens in hardware.
- bcast_flood on or bcast_flood off
-
Controls flooding of broadcast traffic on the given port.
By default this flag is on.
- mcast_flood on or mcast_flood off
-
Controls whether multicast traffic for which there is no MDB entry will be
flooded towards this given port. By default this flag is on.
- mcast_router MULTICAST_ROUTER
-
This flag is almost the same as the per-VLAN flag, see below, except its
value can only be set in the range 0-2. The default is
1
where the bridge figures out automatically where an IGMP/MLD querier,
MRDISC capable device, or PIM router, is located. Setting this flag to
2
is useful in cases where the multicast router does not indicate its
presence in any meaningful way (e.g. older versions of SMCRoute, or
mrouted), or when there is a need for forwarding both known and unknown
IP multicast to a secondary/backup router.
- mcast_to_unicast on or mcast_to_unicast off
-
Controls whether a given port will replicate packets using unicast
instead of multicast. By default this flag is off.
This is done by copying the packet per host and
changing the multicast destination MAC to a unicast one accordingly.
mcast_to_unicast
works on top of the multicast snooping feature of
the bridge. Which means unicast copies are only delivered to hosts which
are interested in it and signalized this via IGMP/MLD reports
previously.
This feature is intended for interface types which have a more reliable
and/or efficient way to deliver unicast packets than broadcast ones
(e.g. WiFi).
However, it should only be enabled on interfaces where no IGMPv2/MLDv1
report suppression takes place. IGMP/MLD report suppression issue is usually
overcome by the network daemon (supplicant) enabling AP isolation and
by that separating all STAs.
Delivery of STA-to-STA IP multicast is made possible again by
enabling and utilizing the bridge hairpin mode, which considers the
incoming port as a potential outgoing port, too (see
hairpin
option).
Hairpin mode is performed after multicast snooping, therefore leading to
only deliver reports to STAs running a multicast router.
- neigh_suppress on or neigh_suppress off
-
Controls whether neigh discovery (arp and nd) proxy and suppression is
enabled on the port. By default this flag is off.
- vlan_tunnel on or vlan_tunnel off
-
Controls whether vlan to tunnel mapping is enabled on the port. By
default this flag is off.
- isolated on or isolated off
-
Controls whether a given port will be isolated, which means it will be
able to communicate with non-isolated ports only. By default this
flag is off.
- locked on or locked off
-
Controls whether a port will be locked, meaning that hosts behind the
port will not be able to communicate through the port unless an FDB
entry with the units MAC address is in the FDB.
The common use is that hosts are allowed access through authentication
with the IEEE 802.1X protocol or based on whitelists or like setups.
By default this flag is off.
- backup_port DEVICE
-
If the port loses carrier all traffic will be redirected to the
configured backup port
- nobackup_port
-
Removes the currently configured backup port
- self
-
link setting is configured on specified physical device
- master
-
link setting is configured on the software bridge (default)
- -t, -timestamp
-
display current time when using monitor option.
bridge link show - list ports configuration for all bridges.
This command displays port configuration and flags for all bridges.
To display port configuration and flags for a specific bridge, use the
"ip link show master <bridge_device>" command.
bridge fdb - forwarding database management
fdb
objects contain known Ethernet addresses on a link.
The corresponding commands display fdb entries, add new entries,
append entries,
and delete old ones.
bridge fdb add - add a new fdb entry
This command creates a new fdb entry.
- LLADDR
-
the Ethernet MAC address.
- dev DEV
-
the interface to which this address is associated.
local
- is a local permanent fdb entry, which means that the bridge will not forward
frames with this destination MAC address and VLAN ID, but terminate them
locally. This flag is default unless "static" or "dynamic" are explicitly
specified.
permanent
- this is a synonym for "local"
static
- is a static (no arp) fdb entry
dynamic
- is a dynamic reachable age-able fdb entry
self
- the operation is fulfilled directly by the driver for the specified network
device. If the network device belongs to a master like a bridge, then the
bridge is bypassed and not notified of this operation (and if the device does
notify the bridge, it is driver-specific behavior and not mandated by this
flag, check the driver for more details). The "bridge fdb add" command can also
be used on the bridge device itself, and in this case, the added fdb entries
will be locally terminated (not forwarded). In the latter case, the "self" flag
is mandatory. The flag is set by default if "master" is not specified.
master
- if the specified network device is a port that belongs to a master device
such as a bridge, the operation is fulfilled by the master device's driver,
which may in turn notify the port driver too of the address. If the specified
device is a master itself, such as a bridge, this flag is invalid.
router
- the destination address is associated with a router.
Valid if the referenced device is a VXLAN type device and has
route short circuit enabled.
use
- the address is in use. User space can use this option to
indicate to the kernel that the fdb entry is in use.
extern_learn
- this entry was learned externally. This option can be used to
indicate to the kernel that an entry was hardware or user-space
controller learnt dynamic entry. Kernel will not age such an entry.
sticky
- this entry will not change its port due to learning.
The next command line parameters apply only
when the specified device
DEV
is of type VXLAN.
- dst IPADDR
-
the IP address of the destination
VXLAN tunnel endpoint where the Ethernet MAC ADDRESS resides.
- src_vni VNI
-
the src VNI Network Identifier (or VXLAN Segment ID)
this entry belongs to. Used only when the vxlan device is in
external or collect metadata mode. If omitted the value specified at
vxlan device creation will be used.
- vni VNI
-
the VXLAN VNI Network Identifier (or VXLAN Segment ID)
to use to connect to the remote VXLAN tunnel endpoint.
If omitted the value specified at vxlan device creation
will be used.
- port PORT
-
the UDP destination PORT number to use to connect to the
remote VXLAN tunnel endpoint.
If omitted the default value is used.
- via DEVICE
-
device name of the outgoing interface for the
VXLAN device driver to reach the
remote VXLAN tunnel endpoint.
- nhid NHID
-
ecmp nexthop group for the VXLAN device driver
to reach remote VXLAN tunnel endpoints.
bridge fdb append - append a forwarding database entry
This command adds a new fdb entry with an already known
LLADDR.
Valid only for multicast link layer addresses.
The command adds support for broadcast and multicast
Ethernet MAC addresses.
The Ethernet MAC address is added multiple times into
the forwarding database and the vxlan device driver
sends a copy of the data packet to each entry found.
The arguments are the same as with
bridge fdb add.
bridge fdb delete - delete a forwarding database entry
This command removes an existing fdb entry.
The arguments are the same as with
bridge fdb add.
bridge fdb replace - replace a forwarding database entry
If no matching entry is found, a new one will be created instead.
The arguments are the same as with
bridge fdb add.
bridge fdb show - list forwarding entries.
This command displays the current forwarding table.
With the
-statistics
option, the command becomes verbose. It prints out the last updated
and last used time for each entry.
bridge fdb get - get bridge forwarding entry.
lookup a bridge forwarding table entry.
- LLADDR
-
the Ethernet MAC address.
- dev DEV
-
the interface to which this address is associated.
- brport DEV
-
the bridge port to which this address is associated. same as dev above.
- br DEV
-
the bridge to which this address is associated.
- self
-
- the address is associated with the port drivers fdb. Usually hardware.
- master
-
- the address is associated with master devices fdb. Usually software (default).
bridge fdb flush - flush bridge forwarding table entries.
flush the matching bridge forwarding table entries. Some options below have a negated
form when "no" is prepended to them (e.g. permanent and nopermanent).
- dev DEV
-
the target device for the operation. If the device is a bridge port and "master"
is set then the operation will be fulfilled by its master device's driver and
all entries pointing to that port will be deleted.
- brport DEV
-
the target bridge port for the operation. If the bridge device is specified then only
entries pointing to the bridge itself will be deleted. Note that the target device
specified by this option will override the one specified by dev above.
- vlan VID
-
the target VLAN ID for the operation. Match forwarding table entries only with the
specified VLAN ID.
- self
-
the operation is fulfilled directly by the driver for the specified network
device. If the network device belongs to a master like a bridge, then the
bridge is bypassed and not notified of this operation. The "bridge fdb flush"
command can also be used on the bridge device itself. The flag is set by default if
"master" is not specified.
- master
-
if the specified network device is a port that belongs to a master device
such as a bridge, the operation is fulfilled by the master device's driver.
- [no]permanent
-
if specified then only permanent entries will be deleted or respectively if "no"
is prepended then only non-permanent entries will be deleted.
- [no]static
-
if specified then only static entries will be deleted or respectively if "no"
is prepended then only non-static entries will be deleted.
- [no]dynamic
-
if specified then only dynamic entries will be deleted or respectively if "no"
is prepended then only non-dynamic (static or permanent) entries will be deleted.
- [no]added_by_user
-
if specified then only entries with added_by_user flag will be deleted or respectively
if "no" is prepended then only entries without added_by_user flag will be deleted.
- [no]extern_learn
-
if specified then only entries with extern_learn flag will be deleted or respectively
if "no" is prepended then only entries without extern_learn flag will be deleted.
- [no]sticky
-
if specified then only entries with sticky flag will be deleted or respectively
if "no" is prepended then only entries without sticky flag will be deleted.
- [no]offloaded
-
if specified then only entries with offloaded flag will be deleted or respectively
if "no" is prepended then only entries without offloaded flag will be deleted.
bridge mdb - multicast group database management
mdb
objects contain known IP or L2 multicast group addresses on a link.
The corresponding commands display mdb entries, add new entries,
and delete old ones.
bridge mdb add - add a new multicast group database entry
This command creates a new mdb entry.
- dev DEV
-
the interface where this group address is associated.
- port PORT
-
the port whose link is known to have members of this multicast group.
- grp GROUP
-
the multicast group address (IPv4, IPv6 or L2 multicast) whose members reside
on the link connected to the port.
permanent
- the mdb entry is permanent. Optional for IPv4 and IPv6, mandatory for L2.
temp
- the mdb entry is temporary (default)
- src SOURCE
-
optional source IP address of a sender for this multicast group. If IGMPv3 for IPv4, or
MLDv2 for IPv6 respectively, are enabled it will be included in the lookup when
forwarding multicast traffic.
- vid VID
-
the VLAN ID which is known to have members of this multicast group.
bridge mdb delete - delete a multicast group database entry
This command removes an existing mdb entry.
The arguments are the same as with
bridge mdb add.
bridge mdb show - list multicast group database entries
This command displays the current multicast group membership table. The table
is populated by IGMP and MLD snooping in the bridge driver automatically. It
can be altered by
bridge mdb add
and
bridge mdb del
commands manually too.
- dev DEV
-
the interface only whose entries should be listed. Default is to list all
bridge interfaces.
With the
-details
option, the command becomes verbose. It prints out the ports known to have
a connected router.
With the
-statistics
option, the command displays timer values for mdb and router port entries.
bridge vlan - VLAN filter list
vlan
objects contain known VLAN IDs for a link.
The corresponding commands display vlan filter entries, add new entries,
and delete old ones.
bridge vlan add - add a new vlan filter entry
This command creates a new vlan filter entry.
- dev NAME
-
the interface with which this vlan is associated.
- vid VID
-
the VLAN ID that identifies the vlan.
- tunnel_info TUNNEL_ID
-
the TUNNEL ID that maps to this vlan. The tunnel id is set in
dst_metadata for every packet that belongs to this vlan (applicable to
bridge ports with vlan_tunnel flag set).
- pvid
-
the vlan specified is to be considered a PVID at ingress.
Any untagged frames will be assigned to this VLAN.
- untagged
-
the vlan specified is to be treated as untagged on egress.
- self
-
the vlan is configured on the specified physical device. Required if the
device is the bridge device.
- master
-
the vlan is configured on the software bridge (default).
bridge vlan delete - delete a vlan filter entry
This command removes an existing vlan filter entry.
The arguments are the same as with
bridge vlan add.
The
pvid and untagged
flags are ignored.
bridge vlan set - change vlan filter entry's options
This command changes vlan filter entry's options.
- dev NAME
-
the interface with which this vlan is associated.
- vid VID
-
the VLAN ID that identifies the vlan.
- state STP_STATE
-
the operation state of the vlan. One may enter STP state name (case insensitive), or one of the
numbers below. Negative inputs are ignored, and unrecognized names return an
error. Note that the state is set only for the vlan of the specified device, e.g. if it is
a bridge port then the state will be set only for the vlan of the port.
0
- vlan is in STP
DISABLED
state. Make this vlan completely inactive for STP. This is also called
BPDU filter and could be used to disable STP on an untrusted vlan.
1
- vlan is in STP
LISTENING
state. Only valid if STP is enabled on the bridge. In this
state the vlan listens for STP BPDUs and drops all other traffic frames.
2
- vlan is in STP
LEARNING
state. Only valid if STP is enabled on the bridge. In this
state the vlan will accept traffic only for the purpose of updating MAC
address tables.
3
- vlan is in STP
FORWARDING
state. This is the default vlan state.
4
- vlan is in STP
BLOCKING
state. Only valid if STP is enabled on the bridge. This state
is used during the STP election process. In this state, the vlan will only process
STP BPDUs.
- mcast_router MULTICAST_ROUTER
-
configure this vlan and interface's multicast router mode, note that only modes
0 - 2 are available for bridge devices.
A vlan and interface with a multicast router will receive all multicast traffic.
MULTICAST_ROUTER
may be either
0
- to disable multicast router.
1
- to let the system detect the presence of routers (default).
2
- to permanently enable multicast traffic forwarding on this vlan and interface.
3
- to temporarily mark this vlan and port as having a multicast router, i.e.
enable multicast traffic forwarding. This mode is available only for ports.
bridge vlan show - list vlan configuration.
This command displays the current VLAN filter table.
With the
-details
option, the command becomes verbose. It displays the per-vlan options.
With the
-statistics
option, the command displays per-vlan traffic statistics.
bridge vlan tunnelshow - list vlan tunnel mapping.
This command displays the current vlan tunnel info mapping.
bridge vlan global set - change vlan filter entry's global options
This command changes vlan filter entry's global options.
- dev NAME
-
the interface with which this vlan is associated. Only bridge devices are
supported for global options.
- vid VID
-
the VLAN ID that identifies the vlan.
- mcast_snooping MULTICAST_SNOOPING
-
turn multicast snooping for VLAN entry with VLAN ID on
(MULTICAST_SNOOPING > 0)
or off
(MULTICAST_SNOOPING == 0). Default is on.
- mcast_querier MULTICAST_QUERIER
-
enable
(MULTICAST_QUERIER > 0)
or disable
(MULTICAST_QUERIER == 0)
IGMP/MLD querier, ie sending of multicast queries by the bridge. Default is disabled.
- mcast_igmp_version IGMP_VERSION
-
set the IGMP version. Default is 2.
- mcast_mld_version MLD_VERSION
-
set the MLD version. Default is 1.
- mcast_last_member_count LAST_MEMBER_COUNT
-
set multicast last member count, ie the number of queries the bridge
will send before stopping forwarding a multicast group after a "leave"
message has been received. Default is 2.
- mcast_last_member_interval LAST_MEMBER_INTERVAL
-
interval between queries to find remaining members of a group,
after a "leave" message is received.
- mcast_startup_query_count STARTUP_QUERY_COUNT
-
set the number of queries to send during startup phase. Default is 2.
- mcast_startup_query_interval STARTUP_QUERY_INTERVAL
-
interval between queries in the startup phase.
- mcast_membership_interval MEMBERSHIP_INTERVAL
-
delay after which the bridge will leave a group,
if no membership reports for this group are received.
- mcast_querier_interval QUERIER_INTERVAL
-
interval between queries sent by other routers. If no queries are seen
after this delay has passed, the bridge will start to send its own queries
(as if
mcast_querier
was enabled).
- mcast_query_interval QUERY_INTERVAL
-
interval between queries sent by the bridge after the end of the
startup phase.
- mcast_query_response_interval QUERY_RESPONSE_INTERVAL
-
set the Max Response Time/Maximum Response Delay for IGMP/MLD
queries sent by the bridge.
bridge vlan global show - list global vlan options.
This command displays the global VLAN options for each VLAN entry.
- dev DEV
-
the interface only whose VLAN global options should be listed. Default is to list
all bridge interfaces.
- vid VID
-
the VLAN ID only whose global options should be listed. Default is to list
all vlans.
bridge vni - VNI filter list
vni
objects contain known VNI IDs for a dst metadata vxlan link.
The corresponding commands display vni filter entries, add new entries,
and delete old ones.
bridge vni add - add a new vni filter entry
This command creates a new vni filter entry.
- dev NAME
-
the interface with which this vni is associated.
- vni VNI
-
the VNI ID that identifies the vni.
- remote IPADDR
-
specifies the unicast destination IP address to use in outgoing packets
when the destination link layer address is not known in the VXLAN device
forwarding database. This parameter cannot be specified with the group.
- group IPADDR
-
specifies the multicast IP address to join for this VNI
bridge vni del - delete a new vni filter entry
This command removes an existing vni filter entry.
The arguments are the same as with
bridge vni add.
bridge vni show - list vni filtering configuration.
This command displays the current vni filter table.
With the
-statistics
option, the command displays per-vni traffic statistics.
- dev NAME
-
shows vni filtering table associated with the vxlan device
bridge monitor - state monitoring
The
bridge
utility can monitor the state of devices and addresses
continuously. This option has a slightly different format.
Namely, the
monitor
command is the first in the command line and then the object list follows:
bridge monitor [ all |
OBJECT-LIST ]
OBJECT-LIST
is the list of object types that we want to monitor.
It may contain
link, fdb, vlan and mdb.
If no
file
argument is given,
bridge
opens RTNETLINK, listens on it and dumps state changes in the format
described in previous sections.
If a file name is given, it does not listen on RTNETLINK,
but opens the file containing RTNETLINK messages saved in binary format
and dumps them.
NOTES
This command uses facilities added in Linux 3.0.
Although the forwarding table is maintained on a per-bridge device basis
the bridge device is not part of the syntax. This is a limitation of the
underlying netlink neighbour message protocol. When displaying the
forwarding table, entries for all bridges are displayed.
Add/delete/modify commands determine the underlying bridge device
based on the bridge to which the corresponding ethernet device is attached.
SEE ALSO
ip(8)
BUGS
Please direct bugreports and patches to: <netdev@vger.kernel.org>
AUTHOR
Original Manpage by Stephen Hemminger
Index
- NAME
-
- SYNOPSIS
-
- OPTIONS
-
- BRIDGE - COMMAND SYNTAX
-
- OBJECT
-
- COMMAND
-
- bridge link - bridge port
-
- bridge link set - set bridge specific attributes on a port
-
- bridge link show - list ports configuration for all bridges.
-
- bridge fdb - forwarding database management
-
- bridge fdb add - add a new fdb entry
-
- bridge fdb append - append a forwarding database entry
-
- bridge fdb delete - delete a forwarding database entry
-
- bridge fdb replace - replace a forwarding database entry
-
- bridge fdb show - list forwarding entries.
-
- bridge fdb get - get bridge forwarding entry.
-
- bridge fdb flush - flush bridge forwarding table entries.
-
- bridge mdb - multicast group database management
-
- bridge mdb add - add a new multicast group database entry
-
- bridge mdb delete - delete a multicast group database entry
-
- bridge mdb show - list multicast group database entries
-
- bridge vlan - VLAN filter list
-
- bridge vlan add - add a new vlan filter entry
-
- bridge vlan delete - delete a vlan filter entry
-
- bridge vlan set - change vlan filter entry's options
-
- bridge vlan show - list vlan configuration.
-
- bridge vlan tunnelshow - list vlan tunnel mapping.
-
- bridge vlan global set - change vlan filter entry's global options
-
- bridge vlan global show - list global vlan options.
-
- bridge vni - VNI filter list
-
- bridge vni add - add a new vni filter entry
-
- bridge vni del - delete a new vni filter entry
-
- bridge vni show - list vni filtering configuration.
-
- bridge monitor - state monitoring
-
- NOTES
-
- SEE ALSO
-
- BUGS
-
- AUTHOR
-
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Time: 04:35:18 GMT, April 25, 2024