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User’s Manual of WGSW-28040
Figure 4-7-5
IGMP Snooping Multicast Stream Control
IGMP Versions 1 and 2
Multicast groups allow members to join or leave at any time. IGMP provides the method for members and multicast routers to
communicate when joining or leaving a multicast group.
IGMP version 1 is defined in RFC 1112. It has a fixed packet size and no optional data.
The format of an IGMP packet is shown below:
IGMP Message Format
Octets
0
8 16
31
Type
Response Time
Checksum
Group Address (all zeros if this is a query)
The IGMP Type codes are shown below:
Type
Meaning
0x11
Membership Query (if Group Address is 0.0.0.0)
148
Содержание wgsw-28040
Страница 1: ...User s Manual of WGSW 28040 1 ...
Страница 124: ...User s Manual of WGSW 28040 VLAN ID 3 Port 4 5 Untagged Port 6 7 Tagged Port 1 3 Excluded 124 ...
Страница 147: ...User s Manual of WGSW 28040 Figure 4 7 3 Multicast Service Figure 4 7 4 Multicast Flooding 147 ...
Страница 257: ...User s Manual of WGSW 28040 Figure 4 10 7 IP based ACE Page Screenshot 257 ...
Страница 263: ...User s Manual of WGSW 28040 Figure 4 10 11 IP based ACE Page Screenshot The page includes the following fields 263 ...