D-Link DES-3828 Product Manual - Page 128

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch CLI Manual

Example usage:

To configure IGMP snooping:

DES-3800:admin#config igmp_snooping default host_timeout 250

state enable

Command: config igmp_snooping default host_timeout 250 state

enable

Success.

DES-3800:admin#

NOTE:

The

Fast Leave

function in the

config igmp_snooping

command can only

be implemented if IGMP is disabled for all IP interfaces on the Switch. Configuring

this function when IGMP is enabled will produce the error message “

Cannot set

Fast leave when IGMP is running

” and consequently will not be implemented.

config igmp_snooping querier

Purpose

This command configures IGMP snooping querier.

Syntax

config igmp_snooping querier [<vlan_name 32> | all]

{query_interval <sec 1-65535> | max_response_time <sec 1-25> |

robustness_variable <value 1-255> |

last_member_query_interval <sec 1-25> | state [enable | disable]

Description

Used to configure the time in seconds between general query

transmissions, the maximum time in seconds to wait for reports from

members and the permitted packet loss that guarantees IGMP

snooping.

Parameters

<vlan_name 32>

−

The name of the VLAN for which IGMP snooping

querier is to be configured.

query_interval

<sec 1-65535>

−

Specifies the amount of time in

seconds between general query transmissions. The default setting is

125 seconds.

max_response_time <sec 1-25>

−

Specifies the maximum time in

seconds to wait for reports from members. The default setting is 10

seconds.

robustness_variable <value 1-255>

−

Provides fine-tuning to allow for

expected packet loss on a subnet. The value of the robustness

variable is used in calculating the following IGMP message intervals:

•

Group member interval—Amount of time that must pass

before a multicast router decides there are no more members

of a group on a network. This interval is calculated as follows:

(robustness variable x query interval) + (1 x query response

interval).

•

Other querier present interval—Amount of time that must

pass before a multicast router decides that there is no longer

another multicast router that is the querier. This interval is

calculated as follows: (robustness variable x query interval) +

(0.5 x query response interval).

•

Last member query count—Number of group-specific queries

sent before the router assumes there are no local members

of a group. The default number is the value of the robustness

variable.

•

By default, the robustness variable is set to 2. You might

want to increase this value if you expect a subnet to be lossy.

124

Section	Page
INTRODUCTION	5
Using the Console CLI	7
Command Syntax	11
Basic Switch Commands	13
Switch Port Commands	31
SNMP V3	35
PoE Commands	49
Network Management Commands	54
Switch Utility Commands	62
Network Monitoring Commands	73
Layer 2 FDB Commands	86
Packet Storm Control Commands	94
QoS Commands	98
Mirror Configuration Commands	106
VLAN Commands	109
Link Aggregation Commands	123
IGMP Snooping Commands	127
802.1X Commands (Including Guest VLANs)	135
Access Control List (ACL) Commands	148
Traffic Segmentation Commands	168
Command List History	170
Basic IP Commands (For Layer 3)	173
ARP Commands	178
Routing Table Commands	182
Route Redistribution Commands	185
RIP Commands	191
IGMP Commands	195
Auto Config Commands V3	199
DNS Relay Commands	201
DVMRP Commands	205
IP Multicasting Commands	210
MD5 Commands	213
OSPF Configuration Commands	215
Time and SNTP Commands	232
Port Security Commands	238
MAC Notification Commands	242
SSH Commands	246
Jumbo Frame Commands	254
Access Authentication Control Commands	256
D-Link Single IP Management Commands	279
Multiple Spanning Tree Protocol (MSTP) Commands	289
SSL Commands	301
VRRP Commands	307
System Severity	316
DHCP Relay	318
IP-MAC Binding Commands	324
LACP Configuration Commands	338
CPU Interface Filtering (Software ACL) Commands	340
Modify Prompt and Banner Commands	348
Safeguard Engine	351
WRED Command List	353
Web-based Access Control (WAC) Commands	357
Double VLAN Command List	363
Limited Multicast IP Address Commands	368
Route Preference Commands	373
MAC-Based Access Control Commands	376
PIM Commands	385
Loopback Interface Commands	402
DHCP Server Command List	405
MLD Snooping Commands	421
Loopback Detection Commands	428
Password Recovery Commands	433
Multicast VLAN Commands	436
CPU Filtering Commands List	439
Broadcast Segmentation Commands	441
Technical Specifications	443

D-Link DES-3828 Product Manual - Page 128

config igmp_snooping querier, DES-3800:admin#config igmp_snooping default host_timeout 250

Page 128 highlights