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2.6.7 IGMP Control

IGMP Snooping is the process of listening to IGMP traffic and is a feature that allows the

switch to

“

listen in

”

on the IGMP conversation between hosts and routers by processing the

layer 3 packets IGMP packets sent in a multicast network.

When IGMP snooping is enabled, this Residential Gateway analyses all the IGMP packets

between hosts connected to it and multicast routers in the network. When it hears an IGMP

report from a host for a given multicast group, it adds the host's port number to the multicast

list for that group. And, when it hears an IGMP Leave, it removes the host's port from the

table entry.

IGMP snooping can effectively reduce multicast traffic from streaming and other bandwidth

intensive IP applications. This gateway using IGMP snooping will only forward multicast

traffic to the hosts interested in that traffic. This reduction of multicast traffic reduces the

packet processing at the gateway and also reduces the workload at the end hosts.

Select

IGMP Control

from the

Switch Configuration

menu,

then

IGMP Control

screen

page shows up.

NAT

IGMP Proxy:

Enable or disable IGMP Proxy. When enabled, all clients attached to the

Residential Gateway will receive multicast data. Please note that IGMP Proxy and IGMP

Snooping can not be selected at the same time.

Proxy Fast Leave:

Enable or disable Proxy Fast Leave. When enabled, the Residential

Gateway removes the interface from the forwarding table immediately when the leave

message is received. Please ensure that only one host is attached to the each interface

when Fast Leave is enabled; otherwise, multicast traffic to other hosts attached to the

interface will be dropped.

Bridge

IGMP Snooping:

Enable or disable IGMP Snooping. When enabled, all clients that respond

with a join message will receive multicast data. Please note that IGMP Proxy and IGMP

Snooping can not be selected at the same time.

Snooping Fast Leave:

Enable or disable Snooping Fast Leave. When enabled, the

Residential Gateway removes the interface from the forwarding table immediately when the

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leave message is received. Please ensure that only one host is attached to the each

interface when Fast Leave is enabled; otherwise, multicast traffic to other hosts attached to

the interface will be dropped.

Snooping Congestion Control:

There are three modes available. However, when you

enable MVR, the

“

Transparent Mode

”

is the only option that can be selected.

Enable report suppression and join aggregation:

The Residential Gateway

forwards only one (the first) IGMP report and join message from all hosts to multicast

devices. Other reports or join messages sent will be filtered. Enabling report

suppression can prevent the same reports from being sent to multicast devices.

Enable report suppression:

The Residential Gateway forwards only one (the first)

IGMP report from all hosts to multicast devices. Enabling report suppression can

prevent the same reports from being sent to multicast devices.

Transparent Mode:

All join and leave messages are forwarded to multicast devices.

NOTE:

The Residential Gateway only supports IGMPv1 and IGMPv2.

2.7 Switch Monitor

Select

Switch Monitor

from the

Main Menu

, the sub-item

–

Switch Port State

–

will show

up.

Port State Polling:

Tick the checkbox to automatically refresh port status.

Polling Time:

Specify time interval in seconds to automatically refresh port status.

Media Type:

View-only field that shows whether each port is a copper port or fiber port.

Port State:

View-only field that shows whether each port is enabled or not.

Link State:

View-only field that shows whether each port is link up or down.

Speed (Mbps):

View-only field that shows the speed of the link-up port(s).

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Duplex:

View-only field that shows whether the link-up port is in full or half duplex mode.

Flow Control:

View-only field that shows whether each port

’

s flow control function is

enabled or disabled.

2.8 SIP Management

Select

SIP Management

from the

Main Menu

, the sub-item

–

Basic setting

,

Account

setting

,

and Server setting

–

will show up.

2.8.1 Basic Setting

Select

Basic Setting

from the

SIP Management

menu,

then

Basic Setting

screen page

appears.

SIP Port Number:

Specify the IP phone number. The number ranges from 1024 to 65535.

The default setting is 5060.

Session Timer:

Specify the time interval in seconds to refresh SIP.

The default setting is

1800 seconds.

Media Port Start:

Specify the media port Start number for RTP.

Media Port End:

Specify the media port End number for RTP.

RTCP:

Specify the RTCP port number.

Transport:

Choose either UDP or TCP. The default SIP transport type is UDP.

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SIP Time Interval:

Specify SIP time interval in milliseconds. The default setting is 500 msec.

Time out for Invite:

Specify the time interval for Invite message timeout. The Invite

message will be dropped if a response is not received within the designated time.

Time out for Ring back:

Specify the timeout time for ring back.

Time out for Release:

Specify the Release time.

Registration Retry Count:

Specify the time interval for registration retry time.

SIP User Agent Name:

Specify SIP User Agent Name.

2.8.2 Account Setting

Select

Account Setting

from the

SIP Management

menu,

then

Account Setting

screen

page appears.

User name:

Specify a user name for Port 1 or Port 2.

Display Name:

Specify a display name for Port 1 or Port 2.

Authentication User Name:

Specify an authentication name for Port 1 or Port 2.

Authentication Password:

Specify an authentication password for Port 1 or Port 2.

Confirmed Password:

Re-type the authentication password to confirm.

MWI:

MWI stands for Message Waiting Indication. To enable your phone to give you a

message

–

waiting (beeping) dial tone when you have one or more voice messages, your

VoIP service provider must have a messaging system that sends message-waiting-status

SIP packets as defined in RFC 3842.

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P-Asserted:

To enable P-Asserted identity. If enabled, this allows the network to assert a

public user identity for a calling user.

Asserted Identity URI:

Specify the P-asserted identity number.

Asserted Identity Display Name:

Specify the display name for P-asserted identity.

2.8.3 Server Setting

Select

Server Setting

from the

SIP Management

menu,

then

Server Setting

screen page

appears.

Authentication Expired Time:

Specify SIP authentication expired time in seconds. The

default setting is 3600 seconds.

Use Outbound Proxy for all messages:

Tick the checkbox to enable outbound proxy.

Register:

Tick the checkbox to enable registration.

Register Server Address:

Specify the registration server address.

Register Server Port:

Specify the registration server port.

Proxy Address:

Specify the proxy address of the SIP server.

Proxy Port:

Specify the proxy port of the SIP server.

Use Outbound Proxy:

Tick the checkbox to use outbound proxy.