[Xorp-users] communication between IGMP and PIM

Thu Jun 19 05:13:09 PDT 2008

Please refer following setup....:

-- I have a setup of XORP (version 1.4 ) with PIM and IGMP enabled on 
all PCs. Setup is as shown in figure  (PIM_config.jpg)
-- I am having H1 which is joined in multicast group 224.0.0.50. It is 
sending IGMP report for that group with correct interval. This group 
entry can also be     seen on xorpsh through "show igmp group". It is 
connected to eth0 interface of R2, so group is added for that interface 
only.
-- This means that IGMP is runing fine on my R2. But this group 
informations should be forwarded by PIM-SM. This is not happening in my 
setup scenario. PIM-SM router should send JOIN messages towards RP 
periodically for particular group. I have configured R1 as RP of 
224.0.0.0/4 statically.
-- I can see that R2 (on eth1) has recognized R1 as its RP in not_joined 
state.
-- I have configured RP as itself in R1.

*Is there any configuration missing?*

Here I am providing XORP configuration file on *R1 and R2 *for your 
reference.
config.boot file-------> ON R1
.................start.................

interfaces {
    restore-original-config-on-shutdown: false
    interface eth0 {
    description: "data interface"
    disable: false
    default-system-config   
    }
}

fea {
    targetname: "fea"
    unicast-forwarding4 {
    disable: false
    forwarding-entries {
        retain-on-startup: false
        retain-on-shutdown:    false
    }
    }  
}

protocols {
    static {
    targetname: "static_routes"
    disable: false

/*    mrib-route 224.0.0.0/8 {
        next-hop: 10.100.3.226
        metric: 1       
    }*/
    }
}

policy {
    /* Describe connected routes for redistribution */
    policy-statement connected {
    term export {
        from {
        protocol: "connected"
        }
    }
    }
}

policy {
    /* Describe static routes for redistribution */
    policy-statement static {
    term export {
        from {
        protocol: "static"
        }
    }
    }
}

plumbing {
    mfea4 {
    disable: false

    interface eth0 {
        vif eth0 {
        disable: false
        }
    }

    interface register_vif {
        vif register_vif {
        /* Note: this vif should be always enabled */
        disable: false
        }
    }

    traceoptions {
        flag all {
        disable: false
        }
    }
    }
}

protocols {
    igmp {
    targetname: "IGMP"
    disable: false
    interface eth0 {
        vif eth0 {
        disable: false
        version: 3
        /* enable-ip-router-alert-option-check: false */
        query-interval: 15
        /* query-last-member-interval: 1 */
        /* query-response-interval: 10 */
        /* robust-count: 2 */
        }
    }

    traceoptions {
        flag all {
        disable: false
        }
    }
    }
}

protocols {
    pimsm4 {
    targetname: "PIMSM_4"
    disable: false
    interface eth0 {
        vif eth0 {
        disable: false
        /* enable-ip-router-alert-option-check: false */
        /* dr-priority: 1 */
        hello-period: 10
        /* hello-triggered-delay: 5 */
        /* alternative-subnet 10.40.0.0/16 */
        }
    }

    interface register_vif {
        vif register_vif {
        /* Note: this vif should be always enabled */
        disable: false
        }
    }

    static-rps {
        rp 10.100.3.225 {
        group-prefix 224.0.0.0/4 {
            /* rp-priority: 192 */
            /* hash-mask-len: 30 */
        }
        }
    }   

    switch-to-spt-threshold {
        /* approx. 1K bytes/s (10Kbps) threshold */
        disable: false
        interval: 100
        bytes: 102400
    }

    traceoptions {
        flag all {
        disable: false
        }
    }
    }
}

/*
 * Note: fib2mrib is needed for multicast only if the unicast protocols
 * don't populate the MRIB with multicast-specific routes.
 */
protocols {
    fib2mrib {
    disable: false
    }
}

.................end.................

config.boot file-------> ON R2
.................start.................
/* $XORP: xorp/rtrmgr/config.boot.sample,v 1.46 2007/03/12 10:16:05 
atanu Exp $ */

interfaces {
    restore-original-config-on-shutdown: false
    interface eth0 {
    description: "data interface"
    disable: false
    default-system-config
    }

    interface eth1 {
    description: "data interface"
    disable: false
    default-system-config
    }
}

fea {
    targetname: "fea"
    unicast-forwarding4 {
    disable: false
    forwarding-entries {
        retain-on-startup: false
        retain-on-shutdown:    false
    }
    }  
}
/*
protocols {
    ip {
    interface eth0 {
        vif eth0 {
            address 192.168.1.10 {
                disable: false
                }
            }
        }

    interface eth1 {
        vif eth1 {
            address 10.100.3.226 {
                disable: false
                }
            }
        }
    }
}

*/

protocols {
    static {
    targetname: "static_routes"
    disable: false
/*
    mrib-route 224.0.0.0/4 {
        next-hop: 192.168.1.10
        metric: 1
    }

    mrib-route 10.100.3.0/8 {
        next-hop: 10.100.3.1
        metric: 1
    }
*/    }

}

policy {
    policy-statement connected {
    term export {
        from {
        protocol: "connected"
        }
    }
    }
}

policy {
    policy-statement static {
    term export {
        from {
        protocol: "static"
        }
    }
    }
}

plumbing {
    mfea4 {
    disable: false

    interface eth0 {
        vif eth0 {
        disable: false
        }
    }

    interface eth1 {
        vif eth1 {
        disable: false
        }
    }

    interface register_vif {
        vif register_vif {
        /* Note: this vif should be always enabled */
        disable: false
        }
    }

    traceoptions {
        flag all {
        disable: false
        }
    }
    }
}

protocols {
    igmp {
    targetname: "IGMP"
    disable: false
    interface eth0 {
        vif eth0 {
        disable: false
        version: 3
        /* enable-ip-router-alert-option-check: false */
        query-interval: 15
        /* query-last-member-interval: 1 */
        /* query-response-interval: 10 */
        /* robust-count: 2 */
        }
    }

    interface eth1 {
        vif eth1 {
        disable: false
        version: 3
        /* enable-ip-router-alert-option-check: false */
        query-interval: 15
        /* query-last-member-interval: 1 */
        /* query-response-interval: 10 */
        /* robust-count: 2 */
        }
    }   

    traceoptions {
        flag all {
        disable: false
        }
    }
    }
}

protocols {
    pimsm4 {
    targetname: "PIMSM_4"
    disable: false
    interface eth0 {
        vif eth0 {
        disable: false
        /* enable-ip-router-alert-option-check: false */
        dr-priority: 200
        hello-period: 10
        /* hello-triggered-delay: 5 */
        /* alternative-subnet 10.40.0.0/16 */
        }
    }

    interface eth1 {
        vif eth1 {
        disable: false
        /* enable-ip-router-alert-option-check: false */
        dr-priority: 200
        hello-period: 10
        /* hello-triggered-delay: 5 */
        /* alternative-subnet 10.40.0.0/16 */
        }
    }

    interface register_vif {
        vif register_vif {
        /* Note: this vif should be always enabled */
        disable: false
        }
    }

    static-rps {

            rp 10.100.3.225 {
        group-prefix 224.0.0.0/4 {
        }
        }

    }

    switch-to-spt-threshold {
        /* approx. 1K bytes/s (10Kbps) threshold */
        disable: false
        interval: 100
        bytes: 102400
    }

    traceoptions {
        flag all {
        disable: false
        }
    }
    }
}

/*
 * Note: fib2mrib is needed for multicast only if the unicast protocols
 * don't populate the MRIB with multicast-specific routes.
 */
protocols {
    fib2mrib {
    disable: true
    }
}
.................end.................
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