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Multicast SSM on vMX not success?

  • 1.  Multicast SSM on vMX not success?

    Posted 06-15-2021 08:19
    Hi all,

    Below is setup in my virtual lab. The configuration should straightforward right like my config below. I'm using VLC Media Player to simulate as SOURCE and RECEIVER. But the result not success.  PIM-Dense and PIM-Sparse work smoothly on my virtual lab. Anyone can tell me whether my config has mistake? Appreciate any help.


    R1

    set interfaces ge-0/0/0 description "--> SSM-vMX-2 (ge-0/0/0)"

    set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.1/30

    set interfaces ge-0/0/1 description "--> SSM-vMX-3 (ge-0/0/1)"

    set interfaces ge-0/0/1 unit 0 family inet address 192.168.1.5/30

    set interfaces ge-0/0/3 description "--> SOURCE Stream  (eth0)"

    set interfaces ge-0/0/3 unit 0 family inet address 10.1.1.1/24

    set interfaces lo0 description "Loopback Interface"

    set interfaces lo0 unit 0 family inet address 1.1.1.1/32

     

    set protocols igmp interface ge-0/0/3.0 version 3

    set protocols ospf area 0.0.0.0 interface ge-0/0/0.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/1.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/3.0

    set protocols pim interface ge-0/0/0.0 mode sparse

    set protocols pim interface ge-0/0/1.0 mode sparse

    set protocols pim interface ge-0/0/3.0 mode sparse

     

    R2

    set interfaces ge-0/0/0 description "--> SSM-vMX-1 (ge-0/0/0)"

    set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.2/30

    set interfaces ge-0/0/1 description "--> SSM-vMX-4 (ge-0/0/1)"

    set interfaces ge-0/0/1 unit 0 family inet address 192.168.1.9/30

    set interfaces lo0 description "Loopback Interface"

    set interfaces lo0 unit 0 family inet address 2.2.2.2/32

     

    set protocols ospf area 0.0.0.0 interface ge-0/0/0.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/1.0

    set protocols pim interface ge-0/0/0.0 mode sparse

    set protocols pim interface ge-0/0/1.0 mode sparse

     

    R3

    set interfaces ge-0/0/0 description "--> SSM-vMX-5 (ge-0/0/0)"

    set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.13/30

    set interfaces ge-0/0/1 description "--> SSM-vMX-1 (ge-0/0/1)"

    set interfaces ge-0/0/1 unit 0 family inet address 192.168.1.6/30

    set interfaces lo0 description "Loopback Interface"

    set interfaces lo0 unit 0 family inet address 3.3.3.3/32

     

    set protocols ospf area 0.0.0.0 interface ge-0/0/0.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/1.0

    set protocols pim interface ge-0/0/0.0 mode sparse

    set protocols pim interface ge-0/0/1.0 mode sparse

     

    R4

    set interfaces ge-0/0/1 description "--> SSM-vMX-2 (ge-0/0/1)"

    set interfaces ge-0/0/1 unit 0 family inet address 192.168.1.10/30

    set interfaces ge-0/0/2 description "--> SSM-vMX-5 (ge-0/0/2)"

    set interfaces ge-0/0/2 unit 0 family inet address 192.168.1.17/30

    set interfaces lo0 description "Loopback Interface"

    set interfaces lo0 unit 0 family inet address 4.4.4.4/32

     

    set protocols ospf area 0.0.0.0 interface ge-0/0/1.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/2.0

    set protocols pim interface ge-0/0/1.0 mode sparse

    set protocols pim interface ge-0/0/2.0 mode sparse

     

    R5

    set interfaces ge-0/0/0 description "--> SSM-vMX-3 (ge-0/0/0)"

    set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.14/30

    set interfaces ge-0/0/2 description "--> SSM-vMX-4 (ge-0/0/2)"

    set interfaces ge-0/0/2 unit 0 family inet address 192.168.1.18/30

    set interfaces ge-0/0/3 description "--> LISTENER (eth0)"

    set interfaces ge-0/0/3 unit 0 family inet address 10.1.4.1/24

    set interfaces lo0 description "Loopback Interface"

    set interfaces lo0 unit 0 family inet address 5.5.5.5/32

     

    set protocols igmp interface ge-0/0/3.0 version 3

    set protocols ospf area 0.0.0.0 interface ge-0/0/0.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/2.0

    set protocols ospf area 0.0.0.0 interface ge-0/0/3.0

    set protocols pim interface ge-0/0/0.0 mode sparse

    set protocols pim interface ge-0/0/2.0 mode sparse

    set protocols pim interface ge-0/0/3.0 mode sparse



  • 2.  RE: Multicast SSM on vMX not success?

    Posted 06-16-2021 10:15
    what is the mcast group address VLC is joining? is it within the default ssm range 232/8 ?

    looks like you might be following this lab.
    https://packetswitch.co.uk/juniper-source-specific-multicast/ 

    what does this show?
    show pim join extensive


    ------------------------------
    Aaron Gould
    Senior Network Engineer
    aaron@gvtc.com
    https://www.linkedin.com/in/agould123/
    ------------------------------



  • 3.  RE: Multicast SSM on vMX not success?

    Posted 06-16-2021 10:24
    Hi aaron,

    Yes, i'm exactly follow that blog. My Source multicast group 232.1.1.1. On vMX2, vMX3 and vMX4 i cannot see output show pim join. IGMPv3 just need to enable interface facing Source and Receiver only right?


    Thanks


  • 4.  RE: Multicast SSM on vMX not success?

    Posted 06-16-2021 10:32
    i think IGMPv3 is only on the Receiver side.  R5 ge-0/0/3.0 and VLC Client on LAN both need to speak IGMPv3... oh also, you need to program the Client (VLC) with the IP Address of the Mcast Sender/Source (10.1.1.10)... have you done that?

    ------------------------------
    Aaron Gould
    Senior Network Engineer
    aaron@gvtc.com
    https://www.linkedin.com/in/agould123/
    ------------------------------



  • 5.  RE: Multicast SSM on vMX not success?

    Posted 06-16-2021 10:44
    Hi Arron,

    Yes, I'm think my VLC setting is correct coz no issue when i test using setup PIM-Sparse and PIM-Dense on that blog that also. So on configuration that I share is it need any additional config that u think?


    root@SSM-vMX-5# run show pim join extensive
    Instance: PIM.master Family: INET
    R = Rendezvous Point Tree, S = Sparse, W = Wildcard

    Group: 232.1.1.1
    Source: 10.1.4.10
    Flags: sparse,spt
    Upstream interface: ge-0/0/3.0
    Upstream neighbor: Direct
    Upstream state: Local Source
    Keepalive timeout:
    Uptime: 00:00:14
    Downstream neighbors:
    Interface: ge-0/0/3.0
    10.1.4.1 State: Join Flags: S Timeout: Infinity
    Uptime: 00:00:14 Time since last Join: 00:00:14
    Number of downstream interfaces: 1

    Group: 239.255.255.250
    Source: 10.1.4.10
    Flags: sparse,spt
    Upstream interface: ge-0/0/3.0


    root@SSM-vMX-1# run show pim join extensive
    Instance: PIM.master Family: INET
    R = Rendezvous Point Tree, S = Sparse, W = Wildcard

    Group: 232.1.1.1
    Source: 10.1.1.10
    Flags: sparse,spt
    Upstream interface: ge-0/0/3.0
    Upstream neighbor: Direct
    Upstream state: Local Source
    Keepalive timeout: 336
    Uptime: 00:05:06
    Downstream neighbors:
    Number of downstream interfaces: 0

    Group: 239.255.255.250
    Source: 10.1.1.10
    Flags: sparse,spt
    Upstream interface: ge-0/0/3.0
    Upstream neighbor: Direct
    Upstream state: Local Source


    [edit]
    root@SSM-vMX-2# run show pim join
    Instance: PIM.master Family: INET
    R = Rendezvous Point Tree, S = Sparse, W = Wildcard

    Instance: PIM.master Family: INET6
    R = Rendezvous Point Tree, S = Sparse, W = Wildcard

    [edit]
    root@SSM-vMX-3# run show pim join
    Instance: PIM.master Family: INET
    R = Rendezvous Point Tree, S = Sparse, W = Wildcard

    Instance: PIM.master Family: INET6
    R = Rendezvous Point Tree, S = Sparse, W = Wildcard


    Thanks