System information

B-22
Monitoring and Analyzing Switch Operation
Status and Counters Data
Notes ■ The receiver-action option can be configured on a per-port basis and can
only be enabled after loop protection has been enabled on the port. All
other configuration options (disable-timer, trap loop-detected, and transmit
interval) are global.
■ The trap option refers to a SNMP trap.
■ Regardless of how the receiver-action and trap options are configured, all
detected loops will be logged in the switch’s event log.
■ The no loop-protect <port> command will not remove a receive-action
configuration line from the running configuration unless this option is set
to receive-action send-disable.
Internet Group Management Protocol (IGMP) Status
The switch uses the CLI to display the following IGMP status on a per-VLAN
basis:
For example, suppose that show ip igmp listed an IGMP group address of
224.0.1.22. You could get additional data on that group by executing the
following:
Show Command Output
show ip igmp Global command listing IGMP status for all VLANs configured
in the switch:
• VLAN ID (VID) and name
• Active group addresses per VLAN
• Number of report and query packets per group
• Querier access port per VLAN
show ip igmp <vlan-id> Per-VLAN command listing above IGMP status for specified
VLAN (VID)
show ip igmp group <ip-addr> Lists the ports currently participating in the specified group,
with port type, Access type, Age Timer data and Leave Timer
data.