Hi,

Maybe MVR could help

http://www.juniper.net/techpubs/en_US/junos/topics/concept/mvr-ex-series.html


On 21.05.2013 18:35, Volodymir Samodid wrote:
Hello all,
  I need help of community.

There are several question about multicast and EX.


At this moment I have the following scheme:


                                                                    ----
mcast_iptv_vlan (access) --- host 1
                                                                   /
                                                                 /
<ISP> ---- Mcast_iptv_vlan (tagged) ---- ex3200 ---- mcast_iptv_vlan
(access) --- host 2
                                                                 \
                                                                   \
                                                                    ----
mcast_iptv_vlan (access) --- host 3

Workstations can join to the multicast group and everything works. On
the EX switch  igmp, igmp-snooping services  disable, ie it works as a
simple L2.

But I have a lot of user in different vlan and I want to give them the
opportunity to receive a multicast stream.

  Scheme should be something like this

----- User_vlan1 (access) --- host 1
                                                                   /
                                                                 /
<ISP> ---- Mcast_iptv_vlan (tagged) ---- ex3200 ---- user_vlan2 (access)
--- host 2
                                                                    \
                                                                       \
------ User_vlan3 (access) --- host 3

Ex3200 runs as  L3 router and default gateway in the user`s vlan.

If I understand right, EX must provide multicast routing. And if it
posible, do not do changes on  ISP side.

In the case of Linux router I will use the igmp-proxy. But  I would like
to do it on the EX, if it is possible, without  additional devices.
I have studied some info from juniper KB but have not found a suitable
solution. If I properly understand proxy option in the igmp-snooping -
allows to proxy traffic only in the same vlan,
not in many at once.
Also i can not test / experiment, because  EX under load. It will be
very vary sad, if some thing going wrong/

P.S. Sorry for my English

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