Monitoring the Number of IGMP Groups on a Port

Purpose

Display the number of IGMP groups that ports have accepted and, if configured, the maximum number of groups that ports can accept.

Note: Only ports that have accepted IGMP groups and ports for which you have configured a limit for the number of IGMP groups appear in this output.

Action

To display the number of IGMP groups that ports have accepted and, if configured, the maximum number of groups that ports can accept:

host1:boston#show multicast group limit
Port      limit count
--------- ----- -----
2/0           5     0
2/1          -1     1

Meaning

Table 25 lists the output fields of the show multicast group limit command.

Table 25: show multicast group limit Output Fields

Field Name

Field Description

Port

Identifier of the port in slot/port format:

  • slot—Number of the chassis slot in the range 0–6 (ERX7xx models) and 0–13 (ERX14xx models)
  • port—Port number on the I/O module

limit

Maximum number of IGMP groups that the port can accept. A value of –1 indicates that no limit has been specified.

count

Actual number of IGMP groups that the port has accepted

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