[j-nsp] VRRP aware IGMP/PIM

[Misak Khachatryan]

Hello,

i have following scheme:


PE1 -------- CE -------- PE2
               |
        Multicast Receiver

PE1 - MX480
PE2 - MX80
CE  - EX4200

VLAN with IGMP snooping configured on CE. VRRP and VRF with NG-MVPN 
configured on PE1 and PE2. IGMP enabled on both CE facing interfaces.

Now both PEs sending multicast streams to receiver, despite on that one 
VRRP peer is active, second - passive, which causes unpredicted results 
on receiver side. Disabling IGMP or interface from any side makes 
everything to work perfect.

I think there should be a way to tell IGMP that it should accept 
register messages until router is not VRRP master, but I can't find it.

Any thoughts?

Config parts:


misak at PE1# show interfaces ge-0/0/1 unit 3093
description IPTV_Ashtarak_OLT1;
vlan-id 3093;
family inet {
     address 10.12.0.1/20 {
         vrrp-group 112 {
             virtual-address 10.12.0.1;
             priority 255;
             fast-interval 100;
             preempt;
         }
     }
}

misak at PE1# show protocols igmp interface ge-0/0/1.3093
version 3;

misak at PE1# show routing-instances IPTV
instance-type vrf;
interface ge-0/0/1.3093;
interface vt-1/3/0.0 {
     multicast;
}
interface lo0.1;
route-distinguisher 65500:3093;
provider-tunnel {
     selective {
         group 239.255.0.0/24 {
             source 10.0.242.0/23 {
                 ldp-p2mp;
             }
         }
     }
}
vrf-target target:65500:3093;
vrf-table-label;
forwarding-options {
     dhcp-relay {
         forward-snooped-clients all-interfaces;
         server-group {
             IPTV_DHCP {
                 10.0.237.2;
             }
         }
         group Abovyan {
             active-server-group IPTV_DHCP;
             relay-option-82 {
                 circuit-id {
                     use-interface-description logical;
                 }
             }
             interface ge-0/0/1.3093 {
                 overrides {
                     allow-snooped-clients;
                     always-write-giaddr;
                     always-write-option-82;
                 }
             }
         }
     }
}
protocols {
     pim {
         rp {
             local {
                 family inet {
                     address 10.0.238.6;
                 }
             }
         }
         interface all {
             mode sparse;
             version 2;
             hello-interval 0;
         }
     }
     mvpn;
}

misak at PE2# show interfaces ge-1/0/9 unit 3093
description IPTV_Ashtarak_OLT1;
vlan-id 3093;
family inet {
     address 10.12.0.9/20 {
         vrrp-group 112 {
             virtual-address 10.12.0.1;
             priority 100;
             fast-interval 100;
         }
     }
}

misak at PE2# show protocols igmp interface ge-1/0/9.3093
version 3;

misak at PE2# show routing-instances IPTV
instance-type vrf;
interface ge-1/0/9.3093;
interface lo0.1;
route-distinguisher 10.255.255.8:3093;
vrf-target target:65500:3093;
vrf-table-label;
forwarding-options {
     dhcp-relay {
         forward-snooped-clients all-interfaces;
         server-group {
             IPTV_DHCP {
                 10.0.237.2;
             }
         }
         group Abovyan {
             relay-option-82 {
                 circuit-id {
                     use-interface-description logical;
                 }
             }
             interface ge-1/0/9.3093 {
                 overrides {
                     allow-snooped-clients;
                     always-write-giaddr;
                     always-write-option-82;
                 }
             }
         }
     }
}
protocols {
     pim {
         rp {
             static {
                 address 10.0.238.6;
             }
         }
         interface all {
             mode sparse;
             version 2;
         }
     }
     mvpn {
         receiver-site;
     }
}

Junos version 12.3

-- 
Best regards,
Misak Khachatryan,
Network Administration and
Monitoring Department Manager,
GNC-Alfa CJSC.