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basic multicast test over one MX router

‎12-18-2018 01:42 AM

Hi All,

 

I am trying to test multicast setup over an MX480 router. i have both reciever and source connected to 2 interfaces of the same MX. this is the physical setup

 

Source...>EX2300.....>>Brocade_switch---->ge-1/0/0/20(MX)ge-1/1/9.20--->EX2200----Receiver

 

MX setup

re0# show protocols pim
interface ge-1/0/0.20 {
    mode dense;
}
re0# show protocols igmp
interface ge-1/1/9.20;


re0# run show igmp group 238.5.5.1 detail
Interface: ge-1/1/9.20, Groups: 2
Group: 238.5.5.1
Group mode: Exclude
Source: 0.0.0.0
Source timeout: 0
Last reported by: 10.2.2.2
Group timeout: 228 Type: Dynamic
Output interface: ge-1/1/9.20

..............................................................................................

-re0# run show multicast route group 238.5.5.1
Instance: master Family: INET

Group: 238.5.5.1
Source: 10.5.5.2/32
Upstream interface: ge-1/1/7.20


 

All switches have IGMP-SNOOP disabled and i am assuming they will flood the muliticast frame .

 

what could i be doing wromg.. with this setup, i cant stream from the reciever.. 

anything i need to allow through the RE-PROTECT Lo0 filter ??

 

Regards,
Lish
FON
2 REPLIES 2
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Routing

Re: basic multicast test over one MX router

‎12-18-2018 03:31 AM

Hello,


@lish wrote:

 

 

what could i be doing wromg.. with this setup, i cant stream from the reciever.. 

 



Please check IP TTL in the multicast packets, popular freeware programs like VLC have default multicast IP TTL ==1 .

 


@lish wrote:

 

anything i need to allow through the RE-PROTECT Lo0 filter ??

 


 Well, for this exact setup - only IGMP.

But please enable logging in the last "Deny All" term and see what You have been missing.

HTH

Thx

Alex

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Accepted by topic author lish
‎01-22-2019 09:53 AM

Re: basic multicast test over one MX router

‎12-18-2018 06:01 AM

Hi Alex,

Not sure why, but if i add the interface facing the switch where the reciever is connected to under PIM, the stream works. 

 

So now at the MX level, i have both the upstream interface and downstream interface under PIM . also the same downstream interface, i have it added under IGMP.

 

 

Regards,

lish.

Regards,
Lish
FON
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