fault-finder multicast-storm

Syntax

fault-finder multicast-storm <PORT-LIST> action {warn | warn-and-disable <Seconds>} {percent <Percent> | pps <Rate>}
no fault-finder multicast-storm <PORT-LIST> action {warn | warn-and-disable <Seconds>} {percent <Percent> | pps <Rate>}

Description

Per-port command to configure multicast-storm. The no form of the command disables multicast-storm configuration on the port.

Parameters

PORT-LIST

Enable multicast storm control on a list of ports.

Seconds

Configure the number of seconds for which the port remains disabled.

Percent

Rising threshold level as a percentage of bandwidth of the port. The percentage is calculated on 64 byte packet size.

Rate

Rising threshold level in number of multicast packets per second

Command context

config

Examples

switch(config)# fault-finder multicast-storm
action                Configure the action taken when a fault is detected.
[ethernet] PORT-LIST  The ports on which to enable Multicast Storm Control.
sensitivity           Configure the fault sensitivity level.

switch(config)# fault-finder multicast-storm ethernet
PORT-LIST             Enter a port number, a list of ports or 'all' for all
                      ports.

switch(config)# fault-finder multicast-storm ethernet 1/1
action                Configure the action taken when a multicast storm is
                      detected.
                                                                                   
switch(config)# fault-finder multicast-storm ethernet 1/1 action
warn                  Log an event only.
warn-and-disable      Log an event and disable the port.


switch(config)# fault-finder multicast-storm ethernet 1/1 action warn-and-disable

SECONDS               Configure the number of seconds for which the port
                      remains disabled. A value of 0 means that the port will
                      remain disabled until manually re-enabled.

switch(config)# fault-finder multicast-storm ethernet 1/1 action warn-and-disable 10

percent               Configure the number of inbound multicast packets per
                      second that is considered a multicast storm. This
                      threshold is computed assuming a size of 64 bytes per
                      incoming multicast packet.
pps                   Configure the number of inbound multicast packets per
                      second that is considered a multicast storm.

switch(config)# fault-finder multicast-storm ethernet 1/1 action warn-and-disable 10 percent

<1-100>               The percentage that is considered a multicast storm.

switch(config)# fault-finder multicast-storm ethernet 1/1 action warn-and-disable 10 percent 40

Per port show fault-finder output:

switch(config)# show fault-finder multicast-storm 1/1

        Mcast | Port   Rising                     Disable    Disable Time
  Port  Storm | Status Threshold Action           Timer      Left
  ----- ----- + ------ --------- ---------------- ---------- ------------
  1/1   Yes   | Down   40%       warn-and-disable 10          -


switch(config)# show fault-finder multicast-storm

        Mcast | Port   Rising                     Disable    Disable Time
  Port  Storm | Status Threshold Action           Timer      Left
  ----- ----- + ------ --------- ---------------- ---------- ------------
  1/1   Yes   | Down   40%       warn-and-disable 10          -
  1/2   Yes   | Down   50%       warn-and-disable 10          -
  1/3   Yes   | Down   50%       warn-and-disable 10          -
  1/4   Yes   | Down   50%       warn-and-disable 10          -
  1/5   Yes   | Down   50%       warn-and-disable 10          -
  1/6   Yes   | Down   50%       warn-and-disable 10          -
  1/7   Yes   | Down   50%       warn-and-disable 10          -
  1/8   Yes   | Down   50%       warn-and-disable 10          -
  1/9   Yes   | Down   50%       warn-and-disable 10          -
  1/10  Yes   | Down   50%       warn-and-disable 10          -
  1/11  Yes   | Down   50%       warn-and-disable 10          -
  1/12  Yes   | Down   50%       warn-and-disable 10          -
Configure ports 1/1 to 1/5 for multicast storm control, and warn and disable the ports after 100 seconds, with a rising threshold of 20%:
switch(config)# fault-finder multicast-storm ethernet 1/1-1/5 action
warn-and-disable 100 percent 20

switch(config)# show fault-finder multicast-storm ethernet 1/1-1/5

        Mcast | Port   Rising                      Disable    Disable Time
  Port  Storm | Status Threshold Action            Timer      Left
  ----- ----- + ------ --------- ----------------  ---------- ------------
  1/1   Yes   | Down   20%       warn-and-disable  100         -
  1/2   Yes   | Down   20%       warn-and-disable  100         -
  1/3   Yes   | Down   20%       warn-and-disable  100         -
  1/4   Yes   | Down   20%       warn-and-disable  100         -
  1/5   Yes   | Down   20%       warn-and-disable  100         -
Disable multicast storm control on port 1/1:
switch(config)# no fault-finder multicast-storm ethernet 1/1
switch(config)# show fault-finder multicast-storm ethernet 1/1

        Mcast | Port   Rising                     Disable    Disable Time
  Port  Storm | Status Threshold Action           Timer      Left
  ----- ----- + ------ --------- ---------------- ---------- ------------
  1/1   No    | Down      -       none              -          -