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IFCFG-BRIDGE(5)              Network configuration             IFCFG-BRIDGE(5)

NAME
       ifcfg-bridge - ethernet bridge interface configuration

SYNOPSIS
       /etc/sysconfig/network/ifcfg-br*

CONFIGURATION
       To setup a bridge interface you need a configuration file ifcfg-<inter-
       face-name> with the usual network settings. But you must add additional
       variables:

       BRIDGE <yes|no>
              This option must be set to 'yes' to identify this interface as a
              bridge interface.

       BRIDGE_PORTS <interface1 interface2 ... interfaceN>
              This variable contains a space-separated list  of  N  interfaces
              which take part in the bridging.

OPTIONAL VARIABLES
       BRIDGE_AGEINGTIME <time>
              This  option  sets the ethernet address ageing time, in seconds.
              After <time> seconds of not having seen a frame  coming  from  a
              certain  address,  the  bridge will delete that address from the
              forwarding database. Setting  ageing  time  to  zero  makes  all
              entries permanent.

       BRIDGE_FORWARDDELAY <time>
              Forwarding  delay  time  is the time in seconds spent in each of
              the listening and learning states before the forwarding state is
              entered.  This  delay  is so that when a new bridge comes onto a
              busy network it looks at some traffic before participating.

       BRIDGE_HELLOTIME <time>
              Periodically, a hello packet is sent out by the root bridge  and
              the  designated  bridges.  Hello packets are used to communicate
              information about the topology  throughout  the  entire  bridged
              local area network.

       BRIDGE_MAXAGE <time>
              If  a  another  bridge  in the spanning tree does not send out a
              hello packet for a long period of time,  it  is  assumed  to  be
              dead. This timeout can be set with this variable.

       BRIDGE_PATHCOSTS <costs1 costs2 ... costsN>
              This  is  a  space-separated  list of costs corresponding to the
              interfaces in  BRIDGE_PORTS.   Each  interface  in  BRIDGE_PORTS
              could  have a different speed and this value is used when decid-
              ing which link to  use.  Faster  interfaces  should  have  lower
              costs.

       BRIDGE_PORTPRIORITIES <prio1 prio2 ... prioN>
              This  is  a  space-separated list of priorities corresponding to
              the interfaces  in  BRIDGE_PORTS.   The  priority  value  is  an
              unsigned 8-bit quantity (a number between 0 and 255), and has no
              dimension. This metric is used in the designated port  and  root
              port selection algorithms.

       BRIDGE_PRIORITY <priority>
              This option sets the bridge's priority to <priority>. The prior-
              ity value is an unsigned 16-bit quantity (a number between 0 and
              65535),  and  has no dimension.  Lower priority values are 'bet-
              ter'. The bridge with the lowest priority will be elected  'root
              bridge'.

       BRIDGE_STP <on|off>
              Multiple  ethernet  bridges  can  work  together  to create even
              larger networks of ethernets using the IEEE 802.1d spanning tree
              protocol.  This  protocol  is used for finding the shortest path
              between  two  ethernets, and  for  eliminating  loops  from  the
              topology.   The  spanning  tree  protocol can also be turned off
              (for those situations where it  just  doesn't  make  sense,  for
              example  when  this  linux box is the only bridge on the LAN, or
              when you know that there are no loops in the topology.)

EXAMPLE
       Minimal example for a bridge interface on eth0  and  eth1,  the  bridge
       interface itself is configured via dhcp:

       ifcfg-br0
            STARTMODE='auto'
            BOOTPROTO='dhcp'
            BRIDGE='yes'
            BRIDGE_PORTS='eth0 eth1'
            BRIDGE_PORTPRIORITIES='50 20'

ADDITIONAL INFORMATION
       For   additional   and  more  general  information  have  a  look  into
       <http://linux-net.osdl.org/index.php/Bridge>.

BUGS
       Please report bugs at <https://bugzilla.novell.com/index.cgi>

AUTHOR
       Stefan Scheler <sscheler@suse.de> -- ifup-bridge

SEE ALSO
       ifcfg(5), ifup(8), brctl(8).

sysconfig                        December 2005                 IFCFG-BRIDGE(5)
 

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Quelle: http://www.trinler.net/de/service/doc/linux/man.html?command=ifcfg-bridge
Gedruckt am: 15.12.2017 18:54 GMT+0100 (2017-12-15T18:54:08+01:00)