Provided by: shorewall6_4.4.21-1_all bug


       tcdevices - Shorewall6 Traffic Shaping Devices file




       Entries in this file define the bandwidth for interfaces on which you
       want traffic shaping to be enabled.

       If you do not plan to use traffic shaping for a device, don't put it in
       here as it limits the throughput of that device to the limits you set

       A note on the bandwidth definitions used in this file:

       ·   don't use a space between the integer value and the unit: 30kbit is
           valid while 30 kbit is not.

       ·   you can use one of the following units:

               Kilobytes per second.

               Megabytes per second.

               Kilobits per second.

               Megabits per second.

           bps or number
               Bytes per second.

       ·   Only whole integers are allowed.

       The columns in the file are as follows.

       INTERFACE - [number:]interface
           Name of interface. Each interface may be listed only once in this
           file. You may NOT specify the name of an alias (e.g., eth0:0) here;

           You may NOT specify wildcards here, e.g. if you have multiple ppp
           interfaces, you need to put them all in here!

           If the device doesn't exist, a warning message will be issued
           during "shorewall6 [re]start" and "shorewall6 refresh" and traffic
           shaping configuration will be skipped for that device.

           Shorewall6 assigns a sequential interface number to each interface
           (the first entry in the file is interface 1, the second is
           interface 2 and so on) Beginning with Shorewall6-perl 4.1.6, you
           can explicitly specify the interface number by prefixing the
           interface name with the number and a colon (":"). Example: 1:eth0.

       IN-BANDWIDTH - bandwidth[:burst]
           The incoming bandwidth of that interface. Please note that you are
           not able to do traffic shaping on incoming traffic, as the traffic
           is already received before you could do so. But this allows you to
           define the maximum traffic allowed for this interface in total, if
           the rate is exceeded, the packets are dropped. You want this mainly
           if you have a DSL or Cable connection to avoid queuing at your
           providers side.

           If you don't want any traffic to be dropped, set this to a value to
           zero in which case Shorewall6 will not create an ingress qdisc.Must
           be set to zero if the REDIRECTED INTERFACES column is non-empty.

           The optional burst option was added in Shorewall6 4.4.18. The
           default burst is 10kb. A larger burst can help make the bandwidth
           more accurate; often for fast lines, the enforced rate is well
           below the specified bandwidth.

       OUT-BANDWIDTH - bandwidth
           The outgoing bandwidth of that interface. This is the maximum speed
           your connection can handle. It is also the speed you can refer as
           "full" if you define the tc classes in shorewall6-tcclasses[1](5).
           Outgoing traffic above this rate will be dropped.

       OPTIONS - {-|{classify|hfsc} ,...}
           classify — When specified, Shorewall will not generate tc or
           Netfilter rules to classify traffic based on packet marks. You must
           do all classification using CLASSIFY rules in

           hfsc - Shorewall normally uses the Hierarchical Token Bucket
           queuing discipline. When hfsc is specified, the Hierarchical Fair
           Service Curves discipline is used instead.

       REDIRECTED INTERFACES - [interface[,interface]...]
           Added in Shorewall6-perl 4.1.6. May only be specified if the
           interface in the INTERFACE column is an Intermediate Frame Block
           (IFB) device. Causes packets that enter each listed interface to be
           passed through the egress filters defined for this device, thus
           providing a form of incoming traffic shaping. When this column is
           non-empty, the classify option is assumed.


       Example 1:
           Suppose you are using PPP over Ethernet (DSL) and ppp0 is the
           interface for this. The device has an outgoing bandwidth of 500kbit
           and an incoming bandwidth of 6000kbit

                       #INTERFACE   IN-BANDWIDTH    OUT-BANDWIDTH         OPTIONS         REDIRECTED
                       #                                                                  INTERFACES
                       1:ppp0         6000kbit        500kbit




       shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5),
       shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
       shorewall6-maclist(5), shorewall6-params(5), shorewall6-policy(5),
       shorewall6-providers(5), shorewall6-route_rules(5),
       shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5),
       shorewall6-secmarks(5), shorewall6-tcclasses(5), shorewall6-tcrules(5),
       shorewall6-tos(5), shorewall6-tunnels(5), shorewall6-zones(5)


        1. shorewall6-tcclasses

        2. shorewall-tcrules

[FIXME: source]                   07/09/2011            SHOREWALL6-TCDEVICE(5)