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IGMP Snooping command reference
IGMP snooping
3-19
iMG/RG Software Reference Manual (IGMP)
3.1.5.1.1 BRIDGE ADD IGMPSNOOP MCASTROUTERINTF
Syntax
BRIDGE ADD IGMPSNOOP MCASTROUTERINTF <interface name>
Description
This command allows the user to add a static multicast router interface. A multicast
router interface is also called an upstream interface and a multicast router is connected
to this interface. The upstream interface implements the Host portion of the IGMP pro-
tocol. The IGMP membership reports and leave group messages are forwarded on the
upstream interfaces.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
--> bridge add igmpsnoop mcastrouterintf eth0
See also
BRIDGE SHOW
3.1.5.1.2 BRIDGE ADD IGMPSNOOP SECURITY
Syntax
BRIDGE ADD IGMPSNOOP SECURITY <mac_name> MAC <mac_address>
Description
This command allows the user to add a static mac address into the list of mac addresses
that are authorized to be provided video service via IGMP. When an IGMP packet is
received, the source MAC address is validated against this list of MAC Addresses - and if
a match if found - it is processed as normal - if not - then it is dropped.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Option
Description
Default value
interface_name
The name of a bridge interface that has previously
been added and attached to a transport using the
bridge add interface and bridge attach CLI com-
mands.
N/A
Option
Description
Default value
mac_name
The name of this particular entry in the MAC table
N/A
mac_address
The MAC Address of the Set Top Box that is autho-
rized to receive video. It is of the format:
<XX:XX:XX:XX:XX:XX>
N/A
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IGMP snooping
IGMP Snooping command reference
iMG/RG Software Reference Manual (IGMP)
3-20
Example
--> bridge add igmpsnoop security firstSTB mac 00:01:02:03:04:05
See also
BRIDGE LIST IGMPSNOOP SECURITY
3.1.5.1.3 BRIDGE DELETE IGMPSNOOP MCASTROUTERINTF
Syntax
BRIDGE DELETE IGMPSNOOP MCASTROUTERINTF <interface name>
Description
This command allows the user to delete a previously added static multicast router inter-
face. The interface reverts to a downstream interface after deletion.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
--> bridge delete igmpsnoop mcastrouterintf eth0
3.1.5.1.4 BRIDGE DELETE IGMPSNOOP SECURITY
Syntax
BRIDGE DELETE IGMPSNOOP SECURITY <mac_name|mac_number|ALL>
Description
This command allows the user to delete one or all static mac address from the list of
mac addresses that are authorized to be provided video service via IGMP.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
--> bridge delete igmpsnoop security All
See also
BRIDGE LIST IGMPSNOOP SECURITY
Option
Description
Default value
interface_name
The name of a bridge interface that has previously been
added and attached to a transport using the bridge add
interface and bridge attach CLI commands.
N/A
Option
Description
Default value
mac_name
The name of this particular entry in the MAC table
N/A
mac_number
The number of the particular entry in the MAC Table
N/A
ALL
All entries
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IGMP Snooping command reference
IGMP snooping
3-21
iMG/RG Software Reference Manual (IGMP)
3.1.5.1.5 BRIDGE LIST IGMPSNOOP GROUPINFO
Syntax
BRIDGE LIST IGMPSNOOP GROUPINFO
Description
This command displays all of the multicast groups in the IGMP database.
Example
--> bridge set igmpsnoop groupinfo
3.1.5.1.6 BRIDGE LIST IGMPSNOOP INTERFACESTATS
Syntax
BRIDGE LIST IGMPSNOOP INTERFACESTATS
Description
This command displays IGMP packet statistics collected for each interface on the bridge.
3.1.5.1.7 BRIDGE LIST IGMPSNOOP STATIC MCASTROUTERINTFS
Syntax
BRIDGE LIST IGMPSNOOP STATIC MCASTROUTERINTFS
Description
This command allows the user to list all previously added static multicast router inter-
faces and the manner in which they were added.
Description
--> bridge list igmpsnoop static mcastrouterintfcs
Bridge Interfaces:
Name
| Type
---------------
ethe0 | static
---------------
3.1.5.1.8 BRIDGE LIST IGMPSNOOP SECURITY
Syntax
BRIDGE LIST IGMPSNOOP SECURITY
Description
This command allows the user to display the IGMP information associated with IGMP
Seccurity to include the configuration - enabled or disabled, the maximum number of
MAC Addresses allowed and whether or not MAX Addresses can be learned. Learned
MACs are sticky - in that if one is learned, then a system restart - or provisioning action
is required to remove it.
Example
--> bridge list igmpsnoop security
IGMP Snoop Configuration:
IGMP Snoop:
Disable
IGMP Net Interface:
ip0
IGMP Enabled Vlan:
-1
Default Fast Leave
Enable
Last Member Query Interval:
0
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IGMP Snooping command reference
iMG/RG Software Reference Manual (IGMP)
3-22
Query Interval:
41
Robustness Variable:
2
Query Response Interval:
3
V1 Timer Value:
133
Multicast Intf Aging Time:
133
IGMP Snoop Mode:
snooponly
IGMP MAC Security:
Disable
IGMP MAC Security Learning:
Disable
IGMP MAC Security Max Number: 5
MAC Address 1:
Empty
MAC Address 2:
Empty
MAC Address 3:
Empty
MAC Address 4:
Empty
MAC Address 5:
Empty
MAC Address 6:
Empty
MAC Address 7:
Empty
MAC Address 8:
Empty
MAC Address 9:
Empty
3.1.5.1.9 BRIDGE SET IGMPSNOOP
Syntax
BRIDGE SET IGMPSNOOP { Enable | Disable | Drop }
Description
This command turns on/off the IGMP snooping processes.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
--> bridge set igmpsnoop enabled
See also
BRIDGE SHOW
Option
Description
Default value
Enabled |
Disabled |
Drop
When Enabled, the IGMP process will intercept all
IGMP frames on the bridge and performs multicast
trunking by adding static multicast entries to the FDB.
When Disabled, the IGMP process removes all static
entries from the FDB and floods all multicast frames.
When Drop, the IGMP process will intercept all IGMP
frames on the bridge and not forward the packets.
Disabled
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IGMP Snooping command reference
IGMP snooping
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iMG/RG Software Reference Manual (IGMP)
3.1.5.1.10 BRIDGE SET IGMPSNOOP DEFAULTFASTLEAVE
Syntax
BRIDGE SET IGMPSNOOP DEFAULTFASTLEAVE { defaultfastleave }
Description
Set the default fast leave state when enabling IGMP.
Fast leave, proxy mode only, will
force leaves out the WAN facing network upon receipt of a leave on the LAN facing net-
work.
If DEFAULTFASTLEAVE is disabled, then when in Proxy mode, the system will
send an IGMP Query down the LAN side to make sure that no other device is receiving
the specific multicast stream- prior to sending the IGMP Leave message out the WAN
interface.
Note:
You must disable and re-enable IGMP before this command will take effect.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
3.1.5.1.11 BRIDGE SET IGMPSNOOP LASTMBERQUERYINTVL
Syntax
BRIDGE SET IGMPSNOOP LASTMEMBERQUERYINT<lastmberqueryintvl>
Description
This command sets the value for the last member query interval.
When the Gateway
receives the what it believes is an IGMP Leave from the last device in a Multicast Group
on a particular port- the Last Member Query Interval is used to specify the time the
Gateway waits for an IGMP Report after sending an IGMP Query message for that mul-
ticst stream down that port. If the Gateway does not receive an IGMP Report in that
interval then it sends an IGMP leave to the Multicast Router.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
--> bridge set igmpsnoop lastmberqueryintvl 5
See also
BRIDGE LIST IGMPSNOOP
Option
Description
Default value
Defaultfastleave
Enable/disable
Enabled
Option
Description
Default value
lastmberqueryintvl
The last member query interval value in seconds.
Valid range is 0 to 255. 0 is a special case, 333 ms.
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