Install guide

48 Release Note
Rapier Switch Software Release 2.1.0
C613-10200-01 Rev A
Figure 18: Example output from the SHOW STP DEBUG command
If necessary, all the STP configuration that users have created on the switch can
be removed, so that all STPs except the default STP are destroyed, and all other
defaults are restored, using the command:
PURGE STP
The PURGE STP command should be used with caution, and generally only
before major reconfiguration of the switch, as it removes all STP configuration
entered on the switch.
IGMP Snooping
IGMP (Internet Group Management Protocol) is used by IP hosts to report their
multicast group memberships to routers and switches. IP hosts join a multicast
group to receive broadcast messages directed to the multicast group address.
IGMP is an IP-based protocol and uses IP addresses to identify both the
multicast groups and the host members. For a VLAN-aware devices, this
means multicast group membership is on a per-VLAN basis. If at least one port
in the VLAN is a member of a multicast group, by default multicast packets
will be flooded onto all ports in the VLAN.
IGMP snooping enables the switch to forward multicast traffic intelligently on
the switch. The switch listens to IGMP membership reports, queries and leave
messages to identify the switch ports that are members of multicast groups.
Multicast traffic will only be forwarded to ports identified as members of the
specific multicast group.
Port Enabled Debug Modes Output Timeout
------------------------------------------------------------
Port1 MSG, PKT, STATE 16 42
------------------------------------------------------------
Port Enabled Debug Modes Output Timeout
------------------------------------------------------------
Port2 STATE 16 12345
------------------------------------------------------------
Port Enabled Debug Modes Output Timeout
------------------------------------------------------------
Port3 None
------------------------------------------------------------
Table 19: Parameters displayed in the output of the SHOW STP DEBUG command
Parameter Meaning
Port The port number on the switch.
Enabled Debug Modes The debugging option for the port; one of “MSG”, “PKT”,
“STATE” or “NONE”.
Output The output device for the port.
Timeout The time in seconds during which the port will stay in debug
mode.