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Chapter 39: Multicast Filtering Commands
MVR for IPv4
mvr proxy-switching
C
M
OMMAND
ODE
Global Configuration
C
U
OMMAND
SAGE
This command sets the general query interval at which active receiver
ports send out general queries. This interval is only effective when proxy
switching is enabled with the
E
XAMPLE
This example sets the proxy query interval for MVR proxy switching.
Console(config)#mvr proxy-query-interval 250
Console(config)#
This command enables MVR proxy switching, where the source port acts as
a host, and the receiver port acts as an MVR router with querier service
enabled. Use the no form to disable this function.
S
YNTAX
[no] mvr proxy-switching
D
S
EFAULT
ETTING
Enabled
C
M
OMMAND
ODE
Global Configuration
C
U
OMMAND
SAGE
When MVR proxy-switching is enabled, an MVR source port serves as
•
the upstream or host interface. The source port performs only the host
portion of MVR by sending summarized membership reports, and
automatically disables MVR router functions.
Receiver ports are known as downstream or router interfaces. These
•
interfaces perform the standard MVR router functions by maintaining a
database of all MVR subscriptions on the downstream interface.
Receiver ports must therefore be configured on all downstream
interfaces which require MVR proxy service.
When the source port receives report and leave messages, it only
•
forwards them to other source ports.
When receiver ports receive any query messages, they are dropped.
•
When changes occurring in the downstream MVR groups are learned by
•
the receiver ports through report and leave messages, an MVR state
change report is created and sent to the upstream source port, which in
turn forwards this information upstream.
When MVR proxy switching is disabled:
•
– 1209 –
mvr proxy-switching
command.
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