NLB Multicast IGMP Server 2003

15/01/2009 - 00:26 por Gonza | Informe spam
Hola,

me gustaría que alguien me aclarara una duda que tengo. Si monto un NLB
Multicast con IGMP, la IP Virtual tiene que ser del rango Multicast de Clase
D o puedo poner una de mi rango de la LAN.

Estos dos KB de Microsoft 323437 y 283028 no me terminan de aclarar.

Del KB 323437 extraigo el siguiente texto:

"You can only enable IGMP support when your cluster is configured for
multicast mode. If you enable IGMP support, the permitted multicast IP
address is restricted to the standard class D range. This is 224.0.0.0 to
239.255.255.255."

Y del KB283028 extraigo estte otro:

"The address range of the multicast group that is used is 239.255.x.y, where
x.y corresponds to the last two octets of the Network Load Balancing virtual
IP address. For example, if the virtual IP address is 10.1.2.3, the
multicast address that cluster nodes are a part of would be 239.255.2.3. Per
the RFC document 2365, this address range is administratively scoped, which
means that any IGMP Join messages sent to an address in this range are not
forwarded by border gateway routers. This prevents interference with any
traffic on the Internet"

El KB283028 me da a entender que si puedo usar una IP virtual de mi rango de
red.

Gracias
 

Leer las respuestas

#1 Guillermo Delprato [MS-MVP]
15/01/2009 - 11:13 | Informe spam
No es mi fuerte el NLB, pero yo no veo contradicción entre los dos
artículos.

El 323437 habla del rango de Multicast en general y este es efectivamente el
que pone, desde 224.0.0.0 hasta 239.255.255.255
Y el 283028 dice que uses 239.255.x.y


Guillermo Delprato
MVP - MCT - MCSE
Buenos Aires, Argentina
http://w2k8-server.spaces.live.com

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"Gonza" wrote in message
news:OOGN$
Hola,

me gustaría que alguien me aclarara una duda que tengo. Si monto un NLB
Multicast con IGMP, la IP Virtual tiene que ser del rango Multicast de
Clase D o puedo poner una de mi rango de la LAN.

Estos dos KB de Microsoft 323437 y 283028 no me terminan de aclarar.

Del KB 323437 extraigo el siguiente texto:

"You can only enable IGMP support when your cluster is configured for
multicast mode. If you enable IGMP support, the permitted multicast IP
address is restricted to the standard class D range. This is 224.0.0.0 to
239.255.255.255."

Y del KB283028 extraigo estte otro:

"The address range of the multicast group that is used is 239.255.x.y,
where x.y corresponds to the last two octets of the Network Load Balancing
virtual IP address. For example, if the virtual IP address is 10.1.2.3,
the multicast address that cluster nodes are a part of would be
239.255.2.3. Per the RFC document 2365, this address range is
administratively scoped, which means that any IGMP Join messages sent to
an address in this range are not forwarded by border gateway routers. This
prevents interference with any traffic on the Internet"

El KB283028 me da a entender que si puedo usar una IP virtual de mi rango
de red.

Gracias

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