Chapter 15: Multicast Filtering
Layer 2 IGMP (Snooping and Query for IPv4)
– 530 –
Figure 15-7: Showing Static Interfaces Assigned to a Multicast Service
S
ETTING
IGMP
S
NOOPING
S
TATUS
PER
I
NTERFACE
Use the Multicast > IGMP Snooping > Interface (Configure VLAN) page to
configure IGMP snooping attributes for a VLAN. To configure snooping
“Configuring IGMP Snooping and Query Parameters” on
.
CLI R
EFERENCES
•
C
OMMAND
U
SAGE
Multicast Router Discovery
There have been many mechanisms used in the past to identify multicast
routers. This has lead to interoperability issues between multicast routers
and snooping switches from different vendors. In response to this problem,
the Multicast Router Discovery (MRD) protocol has been developed for use
by IGMP snooping and multicast routing devices. MRD is used to discover
which interfaces are attached to multicast routers, allowing IGMP-enabled
devices to determine where to send multicast source and group
membership messages. (MRD is specified in draft-ietf-magma-mrdisc-07.)
Multicast source data and group membership reports must be received by
all multicast routers on a segment. Using the group membership protocol
query messages to discover multicast routers is insufficient due to query
suppression. MRD therefore provides a standardized way to identify
multicast routers without relying on any particular multicast routing
protocol.
N
OTE
:
The default values recommended in the MRD draft are implemented
in the switch.
Multicast Router Discovery uses the following three message types to
discover multicast routers:
•
Multicast Router Advertisement – Advertisements are sent by routers to
advertise that IP multicast forwarding is enabled. These messages are
Содержание SSE-G2252
Страница 42: ...44 General IP Routing on page 627...
Страница 174: ...Chapter 6 VLAN Configuration Configuring VLAN Mirroring 178 Figure 6 27 Showing the VLANs to Mirror...
Страница 511: ...Chapter 14 Basic Administration Protocols UDLD Configuration 518 Figure 14 100 Displaying UDLD Neighbor Information...
Страница 603: ...Chapter 16 IP Configuration Setting the Switch s IP Address IP Version 6 609...
Страница 883: ...Chapter 24 General Security Measures Port based Traffic Segmentation 894...
Страница 989: ...Chapter 30 Congestion Control Commands Automatic Traffic Control Commands 1000 Console...
Страница 1007: ...Chapter 33 Address Table Commands 1019...
Страница 1137: ...Chapter 38 Quality of Service Commands 1150...
Страница 1366: ...Chapter 46 IP Routing Commands Global Routing Configuration 1381 Connected 2 Total 2 FIB 0 Console...