[j-nsp] flow-routes "then routing-instance" action

Felix Schueren felix.schueren at hosteurope.de
Wed Oct 15 07:44:01 EDT 2008


I can't wrap my head around how the routing-instance config on Junos
should look like for me to be able to use a flow route to put traffic
into the routing instance, maybe one of you can help.

I have a flow route like this:

show configuration routing-options flow
route flow-test {
    match {
        destination 10.5.6.7/32;
        source 192.168.9.8/32;
    }
    then routing-instance target:20773:5656;
}

which is propagated through the core. The whole flow distribution stuff
works, I can discard or rate-limit by flow-routes just fine.

anyhow, from inetflow.0:

10.5.6.7,192.168.9.8/96 (1 entry, 1 announced)
        *BGP    Preference: 170/-101
                Next hop type: Fictitious
                Next-hop reference count: 11
                State: <Active Int Ext>
                Local AS: 20773 Peer AS: 20773
                Age: 19:28:54
                Task: BGP_20773.10.30.255.225+58095
                Announcement bits (1): 0-Flow
                AS path: I ()
                Communities: 20773:667 no-advertise redirect:20773:5656
                Localpref: 100


I have a routing instance like this:

[edit routing-instances testFlow]
fs at lab3# show
instance-type vrf;
route-distinguisher 20773:5656;
vrf-target target:20773:5656;
routing-options {
    static {
        defaults {
            resolve;
        }
        route 10.5.6.7/32 discard;
        route 0.0.0.0/0 next-table inet.0;
    }
}

(yeah, it's moot that way, I could just as well filter etc, it's just a
test setup, get the basics right before I start the interesting stuff).

My problem is: traffic does not seem to get directed into the instance.
Do I need to use a different instance-type? Any other ideas?

Kind regards,

Felix

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Felix Schueren, Head of NOC

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