Wired Intelligent Edge

I am replacing Cisco VSS 6500 pair with two Aruba 6400 switches configured as VSX for one customer. in VSS, it is one control plane and RP IP address is the loopback for VSS. It is configured manually in all switches and routers in the campus.

When replacing VSS with VSX, we have two controller planes with two different loop back addresses, one for each VSX switch. I could not find any document in Aruba for the best practice for RP IP address in this case:
  
- Configure one RP only, and this is the loop back of 1st 6400 switch. This way I have no redundancy, but the same configuration in all campus switches.
- Configure two RP in each switch in the campus, one for the 1st 6400 and one for the 2nd 6400. This was I need to modify configuration in all switches in the campus
- Configure MSDP And RP anycast, this way I have one RP IP address and any 6400 can function as the root for multicast shared tree

What is the recommendation in this case? Any document from Aruba with configuration for both 6400 switches?

Original Message:
Sent: 1/31/2023 11:55:00 AM
From: Ahmad Enaya
Subject: VSX and Multicast RP selection

I am replacing Cisco VSS 6500 pair with two Aruba 6400 switches configured as VSX for one customer. in VSS, it is one control plane and RP IP address is the loopback for VSS. It is configured manually in all switches and routers in the campus.

When replacing VSS with VSX, we have two controller planes with two different loop back addresses, one for each VSX switch. I could not find any document in Aruba for the best practice for RP IP address in this case:
  
- Configure one RP only, and this is the loop back of 1st 6400 switch. This way I have no redundancy, but the same configuration in all campus switches.
- Configure two RP in each switch in the campus, one for the 1st 6400 and one for the 2nd 6400. This was I need to modify configuration in all switches in the campus
- Configure MSDP And RP anycast, this way I have one RP IP address and any 6400 can function as the root for multicast shared tree

What is the recommendation in this case? Any document from Aruba with configuration for both 6400 switches?

Use MSDP, take a look here
https://community.arubanetworks.com/community-home/librarydocuments/viewdocument?DocumentKey=d84d8d9f-cafc-4786-a209-ead82dd6dc0a&CommunityKey=2fd943a6-8898-4dbe-915f-4f09e4d3c317&tab=librarydocuments

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DWan
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Original Message:
Sent: Jan 31, 2023 11:55 AM
From: Ahmad Enaya
Subject: VSX and Multicast RP selection

I am replacing Cisco VSS 6500 pair with two Aruba 6400 switches configured as VSX for one customer. in VSS, it is one control plane and RP IP address is the loopback for VSS. It is configured manually in all switches and routers in the campus.

When replacing VSS with VSX, we have two controller planes with two different loop back addresses, one for each VSX switch. I could not find any document in Aruba for the best practice for RP IP address in this case:

- Configure one RP only, and this is the loop back of 1st 6400 switch. This way I have no redundancy, but the same configuration in all campus switches.
- Configure two RP in each switch in the campus, one for the 1st 6400 and one for the 2nd 6400. This was I need to modify configuration in all switches in the campus
- Configure MSDP And RP anycast, this way I have one RP IP address and any 6400 can function as the root for multicast shared tree

What is the recommendation in this case? Any document from Aruba with configuration for both 6400 switches?

In a VSX cluster, the VSX member with the highest IP address will be the forwarder of the multicast traffic.
it is a good idea to use The PIM active-active solution makes one of the VSX devices act as DR and other device as proxy-DR for each of the downstream VLANs.
Also when configuring bsr-candidate, typically loopack interface is used, just make sure that the loopback interface is routable.

check this best practice and FAQ
https://www.arubanetworks.com/techdocs/AOS-CX/10.09/HTML/multicast_6200-6300-6400-8xxx-10000/Content/Chp_pim-sm/pim-sm-faq-best-pra.htm

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If my post was useful accept solution and/or give kudos.
Any opinions expressed here are solely my own and not necessarily that of HPE or Aruba.
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Original Message:
Sent: Jan 31, 2023 02:11 PM
From: DWan
Subject: VSX and Multicast RP selection

Use MSDP, take a look here
https://community.arubanetworks.com/community-home/librarydocuments/viewdocument?DocumentKey=d84d8d9f-cafc-4786-a209-ead82dd6dc0a&CommunityKey=2fd943a6-8898-4dbe-915f-4f09e4d3c317&tab=librarydocuments

------------------------------
DWan

Original Message:
Sent: Jan 31, 2023 11:55 AM
From: Ahmad Enaya
Subject: VSX and Multicast RP selection

I am replacing Cisco VSS 6500 pair with two Aruba 6400 switches configured as VSX for one customer. in VSS, it is one control plane and RP IP address is the loopback for VSS. It is configured manually in all switches and routers in the campus.

When replacing VSS with VSX, we have two controller planes with two different loop back addresses, one for each VSX switch. I could not find any document in Aruba for the best practice for RP IP address in this case:

- Configure one RP only, and this is the loop back of 1st 6400 switch. This way I have no redundancy, but the same configuration in all campus switches.
- Configure two RP in each switch in the campus, one for the 1st 6400 and one for the 2nd 6400. This was I need to modify configuration in all switches in the campus
- Configure MSDP And RP anycast, this way I have one RP IP address and any 6400 can function as the root for multicast shared tree

What is the recommendation in this case? Any document from Aruba with configuration for both 6400 switches?