430
C
HAPTER
43: IGMP S
NOOPING
C
ONFIGURATION
c
CAUTION:
An IGMP-Snooping-enabled Switch 7750 Ethernet switch judges
whether the multicast group exists when it receives an IGMP leave packet sent by
a host in a multicast group. If this multicast group does not exist, the switch will
drop the IGMP leave packet instead of forwarding it.
IGMP Snooping
Configuration
IGMP
leave
message
Host Multicast
router
and
multicast
switch
Notify
the
multicast
router
and
multicast
switch
that the
host is
leaving
its
multicast
group.
Multicast router and multicast
switch send IGMP specific
group query message(s) to the
multicast group whose member
host sends leave messages to
check if the multicast group has
any members and enable the
corresponding query timer.
If the multicast
group responds,
the switch
checks whether
the port is the
last host port
corresponding
to the MAC
multicast group.
■
If yes,
remove the
correspondi
ng MAC
multicast
group and IP
multicast
group
■
If no,
remove only
those entries
that
correspond
to this port
in the MAC
multicast
group, and
remove the
correspondi
ng IP
multicast
group
entries
If no response is
received from
the multicast
group before
the timer times
out, notify the
router to
remove this
multicast group
node from the
multicast tree
Table 335
IGMP Snooping messages
Message Sender Receiver Purpose Action of the multicast member switch
Table 336
IGMP Snooping configuration tasks
Operation Description
Related
section
Enable IGMP Snooping
Required
“Enabling IGMP Snooping” on page 431
Configure IGMP Snooping
version
Optional
“Configuring the Version of IGMP
Snooping” on page 431
Summary of Contents for Switch 7754
Page 32: ...32 CHAPTER 1 CLI OVERVIEW ...
Page 70: ...70 CHAPTER 5 LOGGING IN USING MODEM ...
Page 76: ...76 CHAPTER 7 LOGGING IN THROUGH NMS ...
Page 86: ...86 CHAPTER 9 CONFIGURATION FILE MANAGEMENT ...
Page 120: ...120 CHAPTER 13 ISOLATE USER VLAN CONFIGURATION ...
Page 126: ...126 CHAPTER 14 SUPER VLAN ...
Page 136: ...136 CHAPTER 16 IP PERFORMANCE CONFIGURATION ...
Page 152: ...152 CHAPTER 17 IPX CONFIGURATION ...
Page 164: ...164 CHAPTER 19 QINQ CONFIGURATION ...
Page 172: ...172 CHAPTER 21 SHARED VLAN CONFIGURATION ...
Page 182: ...182 CHAPTER 22 PORT BASIC CONFIGURATION ...
Page 198: ...198 CHAPTER 24 PORT ISOLATION CONFIGURATION ...
Page 208: ...208 CHAPTER 25 PORT SECURITY CONFIGURATION ...
Page 224: ...224 CHAPTER 27 DLDP CONFIGURATION ...
Page 232: ...232 CHAPTER 28 MAC ADDRESS TABLE MANAGEMENT ...
Page 240: ...240 CHAPTER 29 CENTRALIZED MAC ADDRESS AUTHENTICATION CONFIGURATION ...
Page 280: ...280 CHAPTER 30 MSTP CONFIGURATION ...
Page 348: ...348 CHAPTER 35 IS IS CONFIGURATION ...
Page 408: ...408 CHAPTER 39 802 1X CONFIGURATION ...
Page 412: ...412 CHAPTER 40 HABP CONFIGURATION ...
Page 422: ...422 CHAPTER 41 MULTICAST OVERVIEW ...
Page 426: ...426 CHAPTER 42 GMRP CONFIGURATION ...
Page 480: ...480 CHAPTER 47 PIM CONFIGURATION ...
Page 506: ...506 CHAPTER 48 MSDP CONFIGURATION ...
Page 552: ...552 CHAPTER 51 TRAFFIC ACCOUNTING CONFIGURATION ...
Page 570: ...570 CHAPTER 53 HA CONFIGURATION ...
Page 582: ...582 CHAPTER 54 ARP CONFIGURATION SwitchA arp protective down recover interval 200 ...
Page 622: ...622 CHAPTER 58 DHCP RELAY AGENT CONFIGURATION ...
Page 684: ...684 CHAPTER 61 QOS CONFIGURATION ...
Page 718: ...718 CHAPTER 63 CLUSTER ...
Page 738: ...738 CHAPTER 67 UDP HELPER CONFIGURATION ...
Page 752: ...752 CHAPTER 69 RMON CONFIGURATION ...
Page 772: ...772 CHAPTER 70 NTP CONFIGURATION ...
Page 796: ...796 CHAPTER 72 FILE SYSTEM MANAGEMENT ...
Page 802: ...802 CHAPTER 73 BIMS CONFIGURATION ...
Page 814: ...814 CHAPTER 74 FTP AND TFTP CONFIGURATION ...
Page 830: ...830 CHAPTER 75 INFORMATION CENTER ...
Page 836: ...836 CHAPTER 76 DNS CONFIGURATION ...
Page 852: ...852 CHAPTER 77 BOOTROM AND HOST SOFTWARE LOADING ...
Page 858: ...858 CHAPTER 78 BASIC SYSTEM CONFIGURATION DEBUGGING ...