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LevelOne GTL-2691 User Manual

Page 1269

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C

HAPTER

42

| Multicast Filtering Commands

IGMP (Layer 3)

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The following shows the information displayed in a detailed listing for a

dynamically learned multicast group.

Console#show ip igmp groups detail

Interface : VLAN 1

Group : 224.1.2.3

Uptime : 0h:0m:12s

Group mode : Include

Last reporter : 0.0.0.0

Group Source List:

Source Address Uptime v3 Exp Fwd

--------------- ----------- ----------- ---

192.1.2.3 0h:0m:12s 0h:0m:0s Yes

Console#

Table 162: show ip igmp groups detail - display description

Field

Description

Interface

The interface on the switch that has received traffic directed to the

multicast group address.

Group

IP multicast group address with subscribers directly attached or

downstream from the switch, or a static multicast group assigned

to this interface.

Uptime

The time elapsed since this entry was created.

Group mode

In INCLUDE mode, reception of packets sent to the specified

multicast address is requested only from those IP source

addresses listed in the source-list parameter. In EXCLUDE mode,

reception of packets sent to the given multicast address is

requested from all IP source addresses except for those listed in

the source-list parameter, and where the source timer status has

expired. Note that EXCLUDE mode does not apply to SSM

addresses.

Last Reporter

The IP address of the source of the last membership report

received for this multicast group address on this interface.

Group Source List

A list of zero or more IP unicast addresses from which multicast

reception is desired or not desired, depending on the filter mode.

Source Address

The address of one of the multicast servers transmitting traffic to

the specified group.

Uptime

The time elapsed since this entry was created.

v3 Exp

The time remaining before this entry will be aged out. The V3 label

indicates that the expire time is only provided for sources learned

through IGMP Version 3. (The default is 260 seconds.)

Fwd

Indicates whether or not traffic will be forwarded from the

multicast source.