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Multicast - Sparse / Sparse-Dense mode

TekashiSixNine
Level 1
Level 1

Hello, I have MPLS L3 VPN. I have configured sparse mode on all P and PE routers and sparse-dense mode on all CE routers. On all routers I ran the command

ip pim autorp listener

and on one specific

ip pim send-rp-announce loopback 0 scope 30
ip pim send-rp-discovery loopback 0 scope 30

(I am not sure if this is right when I have MPLS L3 VPN). I have deafult MDT also. 

When I try to ping a group address from the one CE router I have reply only from its ip address of f0/0 interface which is connected to the PE router and from the loopback address (they are in the group address). I don't receive reply from the other CE router which is in the same group. Where is my mistake?

1 Accepted Solution

Accepted Solutions

I don't see the config I think you edit your comment, never mind, 

https://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/29220-multicast-mpls-vpn.html


from first look you need 
in each PE two loopback one 
1-for the Multicast RP for example Lo100
2- for MP-BGP update source between the PE and RR and other PE, for example Lo0
3- router-ID for tag switching is use Lo0
4- multicast send-RP use Lo100

use

ip tim bindir-enable  instead of auto-rp 



Hope this solve your issue.

View solution in original post

8 Replies 8

follow

I checked it, and still got a problem and I'm confused

Show me the config if you can.

Can I send it to you in private message? I don’t want to share it public cause it’s a project.

I face some issue with community private massage may be I can not reply to you. 
but 
only share the config of CE P PE and hide the public IP.
sorry.

—CE—-

I don't see the config I think you edit your comment, never mind, 

https://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/29220-multicast-mpls-vpn.html


from first look you need 
in each PE two loopback one 
1-for the Multicast RP for example Lo100
2- for MP-BGP update source between the PE and RR and other PE, for example Lo0
3- router-ID for tag switching is use Lo0
4- multicast send-RP use Lo100

use

ip tim bindir-enable  instead of auto-rp 



Hope this solve your issue.

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