[FROG] Source specific Multicast Support on FRR PIM implementation

[Donald Sharp]

`show ip pim neighbor` and `show ip pim join`

We need to figure out why colo1 is not installing the mroute as well.
Is there anything in the log on colo1?

donald

On Thu, Sep 20, 2018 at 7:25 AM, Jonas Dibbie <dibbie at web.de> wrote:
> Hi Donald,
>
> Thank you very much for your feedback.
>
>> SSM should work, configure the interface(s) with `ip pim ssm` and make
>> sure you have a ssm range specified via the `ip pim ssm prefix-list
>> <plistname>` if doing beyond the default SSM range.
>
> Under the interface configuration I can only typ "ip pim sm" for the sparse
> mode.
> Do you mean this or do I have a missing option 'ip pim ssm'?
>
> For a better understandig, my topology are two centos 7 linux hosts. One
> sitting int 'Colo1' [10.190.0.22] and one in 'Colo2' [10.55.0.33]. They have
> a direct MPLS link. This Link is Ipsec encapsulated (Strongswan) and has a
> GRE Interface for Multicast support. Each Linux Host is connected via Layer
> 3 Transferlink (BGP Relation) to the inside LAN Arista Switches, where the
> multicast sender and receiver are connected.
> All switches are PIM-SM SSM enabled.
>
> Currently the receiver is in Colo1 [10.190.0.22] and the sender in Colo2
> [10.55.0.33]
>
>
>>`show ip multicast`
>
> Colo1:
> -----
>
> Mroute socket descriptor: 7(Default-IP-Routing-Table)
> Mroute socket uptime: 19:50:34
>
> Zclient update socket: 10 failures=0
> Zclient lookup socket: 13 failures=0
>
> Maximum highest VifIndex: 31
>
> Upstream Join Timer: 60 secs
> Join/Prune Holdtime: 210 secs
> PIM ECMP: Disable
> PIM ECMP Rebalance: Disable
>
> RPF Cache Refresh Delay: 50 msecs
> RPF Cache Refresh Timer: 0 msecs
> RPF Cache Refresh Requests: 2
> RPF Cache Refresh Events: 2
> RPF Cache Refresh Last: 00:52:38
> Nexthop Lookups: 7
> Nexthop Lookups Avoided: 0
>
> Scan OIL - Last: 00:52:38 Events: 2
> MFC Add - Last: 00:00:24 Events: 5
> MFC Del - Last: 00:00:56 Events: 2
>
> Interface Address ifi Vif PktsIn PktsOut BytesIn BytesOut
> Colo1:Colo2 172.21.21.75 16 0 0 0 0 0
> ens4f1.308 172.22.190.10 12 1 0 0 0 0
>
>
> Colo2:
> -----
>
> Mroute socket descriptor: 7(Default-IP-Routing-Table)
> Mroute socket uptime: 46:01:22
>
> Zclient update socket: 10 failures=0
> Zclient lookup socket: 13 failures=0
>
> Maximum highest VifIndex: 31
>
> Upstream Join Timer: 60 secs
> Join/Prune Holdtime: 210 secs
> PIM ECMP: Disable
> PIM ECMP Rebalance: Disable
>
> RPF Cache Refresh Delay: 50 msecs
> RPF Cache Refresh Timer: 0 msecs
> RPF Cache Refresh Requests: 16
> RPF Cache Refresh Events: 13
> RPF Cache Refresh Last: 19:40:22
> Nexthop Lookups: 743
> Nexthop Lookups Avoided: 0
>
> Scan OIL - Last: 19:40:22 Events: 13
> MFC Add - Last: --:--:-- Events: 0
> MFC Del - Last: 00:02:32 Events: 371
>
> Interface Address ifi Vif PktsIn PktsOut BytesIn BytesOut
> Colo2:Colo1 172.21.21.76 21 0 0 0 0 0
> eth0 172.24.37.3 2 0 0 0 0 0
> pimreg 0.0.0.0 45 0 0 0 0 0
>
>>`show ip pim upstream`
>
> Colo1:
> -----
>
> Iif Source Group State Uptime JoinTimer RSTimer KATimer RefCnt
> Colo1:Colo210.55.0.33 232.122.14.42 J 00:01:00 00:00:40 --:--:-- --:--:-- 1
>
> Colo2:
> -----
>
> Iif Source Group State Uptime JoinTimer RSTimer KATimer RefCnt
> eth0 10.55.0.33 232.122.14.42 J 00:02:35 00:00:04 --:--:-- --:--:-- 1
>
>>`show ip mroute`
>
> Colo1:
> -----
>
> Source Group Proto Input Output TTL Uptime
> 10.55.0.33 232.122.14.42 PIM Colo1:Colo2 ens4f1.308 1 00:01:24
>
> Colo2:
> -----
>
> Source Group Proto Input Output TTL Uptime
>
>>I personally am a bit interested in the rpf for 172.24.37.3 `show ip rpf
>> 172.24.37.3`.
>
> For a better debuging I changed the sender 172.24.37.3 to another host. This
> was on the FRR Host before. The new IP is 10.55.0.33.
> I did this command on the host in Colo2 (closer to the sender).
>
> # sh ip rpf 10.55.0.33
> Routing entry for 10.55.0.0/24 using Unicast RIB
> Known via "bgp", distance 200, metric 0, best
> Last update 1d22h03m ago
> * 172.24.37.102, via eth0
>
> If you need any further debug output feel free to ask. Thank you very much
> for helping on this issue.
>
> greetings,
> Jonas
>
>
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