Questions & Answers

do i need to buy an avb connection card for my rm32ai?

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asked Mar 4, 2021 in SW5E - AVB Switch by sentadriaan (140 points)
Hello, I own a rm32ai, and I want to connect my macbook pro via avb.

Can I connect the rm to the macbook via the standard option card or do I need to buy an avb card and or an avb switch?

1 Answer

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answered Mar 17, 2021 by scott peterson (180 points)
The newer stuff uses AVBDEC where the RM32ai uses AVB.  I have not see a guide for how to run AVB with a Mac which certainly seemed advertised to be a working solution in the connection guide: https://pae-web.presonusmusic.com/downloads/products/pdf/PreSonus_StudioLive_RM_Applications1.pdf

see page 16, AVB 802.1 Cascaded AVB Recording coming 2015.

Near this page is information about the Dante support and issues with vlans and multicast packets.

I am also in need of a manual for how to configure AVB with the rm32ai or rm16ai in my case.

I did try to connect my Mac via a crossover and did a sudo tcpdump -I en0 at the terminal and saw:

Maybe this is some type of beaconing AVB == help? I am kinda lost from here

----------

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on en0, link-type EN10MB (Ethernet), capture size 262144 bytes

12:59:43.541140 02:58:7c:f9:d5:d8 (oui Unknown) > 01:80:c2:00:00:0e (oui Unknown), ethertype Unknown (0x88f7), length 68:

    0x0000:  1202 0036 0000 0008 0000 0000 0000 0000  ...6............

    0x0010:  0000 0000 0258 7cff fef9 d5d8 0004 ab2f  .....X|......../

    0x0020:  0500 0000 0000 0000 0000 0000 0000 0000  ................

    0x0030:  0000 0000 0000                           ......

12:59:43.582088 IP 192.169.1.66.53000 > broadcasthost.47809: UDP, length 75

12:59:43.935773 IP 192.168.1.65.mdns > 224.0.0.251.mdns: 0 [2q] [1au] SRV (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. TXT (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. (85)

12:59:43.935828 IP6 scotties-mac-mini.local.mdns > ff02::fb.mdns: 0 [2q] [1au] SRV (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. TXT (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. (85)

12:59:45.554920 02:58:7c:f9:d5:d8 (oui Unknown) > 01:80:c2:00:00:0e (oui Unknown), ethertype Unknown (0x88f7), length 68:

    0x0000:  1202 0036 0000 0008 0000 0000 0000 0000  ...6............

    0x0010:  0000 0000 0258 7cff fef9 d5d8 0004 ab30  .....X|........0

    0x0020:  0500 0000 0000 0000 0000 0000 0000 0000  ................

    0x0030:  0000 0000 0000                           ......

12:59:46.085830 IP 192.169.1.66.53000 > broadcasthost.47809: UDP, length 75

12:59:46.947252 IP 192.168.1.65.mdns > 224.0.0.251.mdns: 0 [2q] [1au] SRV (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. TXT (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. (85)

12:59:46.947259 IP6 scotties-mac-mini.local.mdns > ff02::fb.mdns: 0 [2q] [1au] SRV (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. TXT (QM)? scottieM-bM-^@M-^Ys iMac._rfb._tcp.local. (85)

12:59:47.567686 02:58:7c:f9:d5:d8 (oui Unknown) > 01:80:c2:00:00:0e (oui Unknown), ethertype Unknown (0x88f7), length 68:

    0x0000:  1202 0036 0000 0008 0000 0000 0000 0000  ...6............

    0x0010:  0000 0000 0258 7cff fef9 d5d8 0004 ab31  .....X|........1

    0x0020:  0500 0000 0000 0000 0000 0000 0000 0000  ................

    0x0030:  0000 0000 0000                           ......

^C^C^C12:59:47.933811 IP6 scotties-mac-mini.local > ff02::1:ffc2:4e52: ICMP6, neighbor solicitation, who has fe80::4f6:f982:7cc2:4e52, length 32

10 packets captured

26 packets received by filter

0 packets dropped by kernel
...