C
HAPTER
17
| Multicast Filtering
Layer 2 IGMP (Snooping and Query for IPv4)
– 618 –
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
globally, refer to
"Configuring IGMP Snooping and Query Parameters" on
page 610
.
CLI R
EFERENCES
◆
"IGMP Snooping" on page 1204
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
sent unsolicited periodically on all router interfaces on which multicast
forwarding is enabled. They are sent upon the occurrence of these
events:
■
Upon the expiration of a periodic (randomized) timer.
■
As a part of a router's start up procedure.
■
During the restart of a multicast forwarding interface.
■
On receipt of a Solicitation message.
◆
Multicast Router Solicitation – Devices send Solicitation messages in
order to solicit Advertisement messages from multicast routers. These
messages are used to discover multicast routers on a directly attached
link. Solicitation messages are also sent whenever a multicast
forwarding interface is initialized or re-initialized. Upon receiving a
solicitation on an interface with IP multicast forwarding and MRD
enabled, a router will respond with an Advertisement.
Содержание ES3528MV2
Страница 1: ...Management Guide www edge core com ES3528MV2 ES3528MV2 DC 28 Port Fast Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 48: ...CONTENTS 48...
Страница 68: ...SECTION I Getting Started 68...
Страница 78: ...CHAPTER 1 Introduction System Defaults 78...
Страница 96: ...SECTION II Web Configuration 96...
Страница 116: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 116...
Страница 148: ...CHAPTER 4 Basic Management Tasks Resetting the System 148...
Страница 192: ...CHAPTER 5 Interface Configuration VLAN Trunking 192 Figure 65 Configuring VLAN Trunking...
Страница 226: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 226...
Страница 236: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 236...
Страница 270: ...CHAPTER 9 Congestion Control Automatic Traffic Control 270...
Страница 300: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 300...
Страница 418: ...CHAPTER 13 Security Measures DHCP Snooping 418...
Страница 588: ...CHAPTER 15 IP Configuration Setting the Switch s IP Address IP Version 6 588...
Страница 606: ...CHAPTER 16 IP Services Configuring the PPPoE Intermediate Agent 606...
Страница 676: ...CHAPTER 17 Multicast Filtering Multicast VLAN Registration for IPv6 676...
Страница 772: ...CHAPTER 20 System Management Commands Switch Clustering 772...
Страница 802: ...CHAPTER 22 Remote Monitoring Commands 802...
Страница 808: ...CHAPTER 23 Flow Sampling Commands 808...
Страница 872: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 872...
Страница 950: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 950...
Страница 1002: ...CHAPTER 27 Interface Commands Power Savings 1002...
Страница 1016: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1016...
Страница 1046: ...CHAPTER 30 Congestion Control Commands Automatic Traffic Control Commands 1046...
Страница 1058: ...CHAPTER 32 UniDirectional Link Detection Commands 1058...
Страница 1064: ...CHAPTER 33 Address Table Commands 1064...
Страница 1124: ...CHAPTER 35 ERPS Commands 1124...
Страница 1168: ...CHAPTER 36 VLAN Commands Configuring Voice VLANs 1168...
Страница 1182: ...CHAPTER 37 Class of Service Commands Priority Commands Layer 3 and 4 1182...
Страница 1202: ...CHAPTER 38 Quality of Service Commands 1202...
Страница 1360: ...CHAPTER 41 CFM Commands Delay Measure Operations 1360...
Страница 1382: ...CHAPTER 43 Domain Name Service Commands 1382...
Страница 1440: ...SECTION IV Appendices 1440...
Страница 1468: ...COMMAND LIST 1468...
Страница 1479: ......
Страница 1480: ...ES3528MV2 ES3528MV2 DC E112013 ST R03...