[j-nsp] Juniper output flow sampling and MPLS packets
Cougar
cougar at random.ee
Tue Mar 4 01:36:02 EST 2008
Hello,
Before filing a JTAC case I'd like to ask help from this list as I
couldn't find any information from the web.
I have simple topology:
+---------+
| |
backbone ----+ mx960 +---- peering
| | \
+----+----+ \ in/out sampling is here
|
|
customer
Backbone part is mostly MPLS-only, customer and peering ports are pure IP.
What I have done right now is that I have every peering and uplink port
configured with sampling for both directions.
family inet {
sampling {
input;
output;
}
}
As long here is no traffic possible between these ports I don't get
nothing counted twice. Only thing I miss this is customer-customer
traffic but this is not important right now.
Incoming traffic is ok and sampled well. I have problem with outgoing
traffic. If I look at statistics I see packets only from router (interface
0) and customer going to peering port but no traffic from backbone port. I
also tried it with output filter and "sample" action but no luck.
Is it possible to 'fix' it somehow? Any idea?
--
Cougar
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