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 - -