
C
HAPTER
39
| Multicast Filtering Commands
IGMP Snooping
– 1216 –
C
OMMAND
U
SAGE
◆
When a multicast host leaves a group, it sends an IGMP leave message.
When the leave message is received by the switch, it checks to see if
this host is the last to leave the group by sending out an IGMP group-
specific or group-and-source-specific query message, and starts a
timer. If no reports are received before the timer expires, the group
record is deleted, and a report is sent to the upstream multicast router.
◆
A reduced value will result in reduced time to detect the loss of the last
member of a group or source, but may generate more bursty traffic.
◆
This command will take effect only if IGMP snooping proxy reporting is
enabled (
page 1206
).
E
XAMPLE
Console(config)#ip igmp snooping vlan 1 last-memb-query-intvl 700
Console(config)#
ip igmp snooping
vlan mrd
This command enables sending of multicast router solicitation messages.
Use the
no
form to disable these messages.
S
YNTAX
[
no
]
ip igmp snooping vlan
vlan-id
mrd
vlan-id
- VLAN ID (Range: 1-4094)
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
◆
Multicast Router Discovery (MRD) uses multicast router advertisement,
multicast router solicitation, and multicast router termination messages
to discover multicast routers. 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.
◆
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 expiration of a periodic timer, as a part of a router's
start up procedure, during the restart of a multicast forwarding
interface, and on receipt of a solicitation message. When the multicast
services provided to a VLAN is relatively stable, the use of solicitation
Summary of Contents for ES3528MV2
Page 1: ...Management Guide www edge core com ES3528MV2 ES3528MV2 DC 28 Port Fast Ethernet Layer 2 Switch...
Page 2: ......
Page 4: ......
Page 48: ...CONTENTS 48...
Page 68: ...SECTION I Getting Started 68...
Page 78: ...CHAPTER 1 Introduction System Defaults 78...
Page 96: ...SECTION II Web Configuration 96...
Page 116: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 116...
Page 148: ...CHAPTER 4 Basic Management Tasks Resetting the System 148...
Page 192: ...CHAPTER 5 Interface Configuration VLAN Trunking 192 Figure 65 Configuring VLAN Trunking...
Page 226: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 226...
Page 236: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 236...
Page 270: ...CHAPTER 9 Congestion Control Automatic Traffic Control 270...
Page 300: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 300...
Page 418: ...CHAPTER 13 Security Measures DHCP Snooping 418...
Page 588: ...CHAPTER 15 IP Configuration Setting the Switch s IP Address IP Version 6 588...
Page 606: ...CHAPTER 16 IP Services Configuring the PPPoE Intermediate Agent 606...
Page 676: ...CHAPTER 17 Multicast Filtering Multicast VLAN Registration for IPv6 676...
Page 772: ...CHAPTER 20 System Management Commands Switch Clustering 772...
Page 802: ...CHAPTER 22 Remote Monitoring Commands 802...
Page 808: ...CHAPTER 23 Flow Sampling Commands 808...
Page 872: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 872...
Page 950: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 950...
Page 1002: ...CHAPTER 27 Interface Commands Power Savings 1002...
Page 1016: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1016...
Page 1046: ...CHAPTER 30 Congestion Control Commands Automatic Traffic Control Commands 1046...
Page 1058: ...CHAPTER 32 UniDirectional Link Detection Commands 1058...
Page 1064: ...CHAPTER 33 Address Table Commands 1064...
Page 1124: ...CHAPTER 35 ERPS Commands 1124...
Page 1168: ...CHAPTER 36 VLAN Commands Configuring Voice VLANs 1168...
Page 1182: ...CHAPTER 37 Class of Service Commands Priority Commands Layer 3 and 4 1182...
Page 1202: ...CHAPTER 38 Quality of Service Commands 1202...
Page 1360: ...CHAPTER 41 CFM Commands Delay Measure Operations 1360...
Page 1382: ...CHAPTER 43 Domain Name Service Commands 1382...
Page 1440: ...SECTION IV Appendices 1440...
Page 1468: ...COMMAND LIST 1468...
Page 1479: ......
Page 1480: ...ES3528MV2 ES3528MV2 DC E112013 ST R03...