[j-nsp] sflow on 2x EX4200 VC - no sflow data send

[Giovanni Bellac]

Hello all,

we are running 2x EX4200 in a VC with BGP default route 0.0.0.0/0 over ports 
ge-0/0/23 and ge-1/0/23

The JunOS version is 10.0S10

The interfaces ge-0/0/0 and ge-1/0/0 are a aggregate interface "ae0" and trunked 
to the rack-switch.


The problem is, that the VC is not exporting sflow data to the collector.

I have set it up like 
http://kb.juniper.net/InfoCenter/index?page=content&id=KB14855

(85.XXX.24.12 is the collector IP)

# set collector 85.XXX.24.12 udp-port 6343
# set interfaces ge-0/0/0
# set interfaces ge-1/0/0
# set polling-interval 20
# set sample-rate 1000


sflow {
polling-interval 20;
sample-rate 1000;
collector 85.XXX.24.12;
interfaces ge-0/0/0.0;
interfaces ge-1/0/0.0;
} 


I have even tried to put the uplink interfaces (ge-0/0/23 and ge-1/0/23) to the 
interface section of sflow.



# show sflow

gives me as "Agent ID" 85.XXX.23.1

This "Agent ID" 85.XXX.23.1 is automatically configured from:

vlan {
        unit 0 {
            family inet;
        }
        unit 101;
        unit 102 {
            family inet {
                address 85.XXX.23.1/27;



# show sflow collector

counts the send samples, but at the collector is not receiving anything. I have 
checked it with tcpdump, there is no traffic from the "Agent ID".

Do I have a fault in my configuration ?

Thanks a lot.
Giovanni