Re: MSDP MSDP Originator ID and Dense mode region on EX 4300

Hello,

MSDP is not supported on EX4300

https://www.juniper.net/documentation/en_US/junos/topics/concept/multicast-msdp-overview.html

Supported Platforms

• EX4600
• M Series
• MX Series
• OCX1100
• QFX Series
• QFabric System
• SRX Series
• T Series

But if You swap EX4300 for a JNPR product that supports MSDP, then I believe You can work it around with PIM "accept-remote-source" command 

https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/accept-remote-source-edit-protocols-pim.html

HTH

Thx

Alex