# BIDIR Phantom RP

**URL:** https://forum.networklessons.com/t/bidir-phantom-rp/8378
**Category:** Multicast
**Created:** [September 28, 2019, 11:33pm UTC](https://forum.networklessons.com/t/bidir-phantom-rp/8378 "2019-09-28T23:33:23Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![michael7943](https://cdn-forum.networklessons.com/letter_avatar_proxy/v4/letter/m/eada6e/32.png) [@michael7943](https://forum.networklessons.com/u/michael7943)
#### Post date: [September 28, 2019, 11:33pm UTC](https://forum.networklessons.com/t/bidir-phantom-rp/8378/1 "2019-09-28T23:33:23Z")

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Can you explain BIDIR Phantom RP in your easy to understand approach 🙂

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### Author: ![lagapidis](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/lagapidis/32/4949_2.png) [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [October 2, 2019, 5:48am UTC](https://forum.networklessons.com/t/bidir-phantom-rp/8378/2 "2019-10-02T05:48:24Z")

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Hello Michael

An excellent overview can be found here:

> **[RP Redundancy with PIM Bidir - Phantom RP](https://community.cisco.com/t5/networking-knowledge-base/rp-redundancy-with-pim-bidir-phantom-rp/ta-p/3117191)**
>
> Overview : With PIM Bidirectional, all packets move on the shared tree so RP redundancy is even more important than with PIM Sparse-Mode where RP failover has only an impact on newly active streams... Despite PIM SM, there is no point with PIM...

Take a look and if you have any particular questions, let us know.

I hope this has been helpful!

Laz