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Page 126 / 170 Scroll up to view Page 121 - 125
123
Certificate
This feature is used for TR069 ACS Server authentication of the device used certificate, if necessary.
If the imported certificate doesn't match the authorized certificate of the ACS Server, the device will
have no access to the server.
Certificate Name:
the certificate identification name.
Subject:
the certificate subject.
Type:
the certificate type information. "ca", indicates that the certificate is a CA-signed certificate.
"self", indicates that the certificate is a certificate owner signed one.
"x.509", indicates the certificate is the one created and signed according to the definition of Public-
Key System suggested by x.509.
Action:
View: view the certificate.
Remove: remove the certificate.
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124
Click
Import Certificate
button to import your certificate.
Enter the certificate name and insert the certificate.
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Click Apply to confirm your settings.
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126
Multicast
Multicast is one of the three network transmission modes, Unicast, Multicast, Broadcast. It is a
transmission mode that supports point-to-multipoint connections between the sender and the
recipient. IGMP protocol is used to establish and maintain the relationship between IP host and the
host directly connected multicast router.
IGMP stands for
Internet Group Management Protocol
is a communications protocols used to
manage the membership of Internet Protocol multicast groups. IGMP is used by IP hosts and the
adjacent multicast routers to establish multicast group members. There are three versions for IGMP,
that is IGMPv1, IGMPv2 and IGMPv3.
MLD, short for
Multicast Listener Discovery
protocol, is a component if the Internet Protocol
version 6(IPv6) suite. MLD is used by IPv6 to discover multicast listeners on a directly attached link,
much as IGMP used in IPv4. The protocol is embedded in ICMPv6 instead of using a separate
protocol. MLDv1 is similar to IGMPv2 and MLDv2 is similar to IGMPv3.
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127
IGMP
Default Version:
enter the supported IGMP version, 1-3, default is IGMP v3.
Query
Interval:
enter the periodic query interval time (sec) the multicast router sending the query
message to hosts to understand the group membership information.
Query
Response
Interval:
enter the response interval time (sec).
Last Member Query Interval:
enter the interval time (sec) the multicast router query the specified
group after it has received leave message.
Robustness Value:
enter the router robustness parameter, 2-7, the greater the robustness value,
the more robust the Querier is.
Maximum Multicast Groups:
enter the Maximum Multicast Groups.
Maximum Multicast Data Sources( for IGMP v3):
enter the Maximum Multicast Data Sources,1-24.
Maximum Multicast Group Members:
enter the Maximum Multicast Group Members.
Fast leave:
check to determine whether to support fast leave. If this value is enabled, IGMP proxy
removes the membership of a group member immediately without sending an IGMP membership
query on downstream. This is very helpful if user wants fast channel (group change) changing in
cases like IPTV environment.
LAN to LAN (Intra LAN) Multicast:
check to determine whether to support LAN to LAN (Intra LAN)
Multicast. If user want to have a multicast data source on LAN side and he want to get IGMP
snooping enabled, then this LAN-to-LAN multicast feature should be enabled.
MLD
Default Version:
enter the supported MLD version, 1-2, default is MLDv2.
Query
Interval:
enter the periodic query interval time (sec) the multicast router sending the query
message to hosts to understand the group membership information.
Query
Response
Interval:
enter the response interval time (sec).
Last Member Query Interval:
enter the interval time (sec) the multicast router query the specified
group after it has received leave message.
Robustness Value:
enter the router robustness parameter, default is 2, the greater the robustness
value, the more robust the Querier is.
Maximum Multicast Groups:
enter the Maximum Multicast Groups.
Maximum Multicast Data Sources( for MLDv2):
enter the Maximum Multicast Data Sources,1-24.
Maximum Multicast Group Members:
enter the Maximum Multicast Group Members.
Fast leave:
check to determine whether to support fast leave. If this value is enabled, MLD proxy
removes the membership of a group member immediately without sending an MLD membership
query on downstream. This is very helpful if user wants fast channel (group change) changing in
cases like IPTV environment.
LAN to LAN (Intra LAN) Multicast:
check to determine whether to support LAN to LAN (Intra LAN)
Multicast. If user want to have a multicast data source on LAN side and he want to get MLD
snooping enabled, then this LAN-to-LAN multicast feature should be enabled.

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