Hi,
I'm trying to setup sflow on a MX204 running Junos 19.4R2.6 but I don't see any samples begin sent to the collector.
Here is the relevant config:
set protocols sflow agent-id 10.177.123.20
set protocols sflow polling-interval 5
set protocols sflow sample-rate ingress 1000
set protocols sflow sample-rate egress 1000
set protocols sflow source-ip 10.177.123.20
set protocols sflow collector 10.27.4.18 udp-port 6343
set protocols sflow interfaces xe-0/1/0.0 sample-rate ingress 1000
set protocols sflow interfaces xe-0/1/0.0 sample-rate egress 1000
set protocols sflow interfaces xe-0/1/6.0 sample-rate ingress 1000
set protocols sflow interfaces xe-0/1/6.0 sample-rate egress 1000
The source is the management interface fxp0 in routing instance mgmt_junos
set interfaces fxp0 unit 0 family inet address 10.177.123.20/24
Routing is correctly configured in both instances: (This is done by route leaking)
show route 10.27.4.18
inet.0: 23 destinations, 26 routes (23 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.27.4.18/32 *[Static/5] 00:32:41
> to 10.177.123.9 via fxp0.0
mgmt_junos.inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.27.4.18/32 *[Static/5] 00:32:41
> to 10.177.123.9 via fxp0.0
I see samples are being collected:
show sflow
sFlow : Enabled
Adaptive fallback : Disabled
Sample limit : 300 packets/second
Sample limit Threshold : 0 packets/second
Polling interval : 5 second
Sample rate egress : 1:1000: Enabled
Sample rate ingress : 1:1000: Enabled
Agent ID : 10.177.123.20
Agent ID IPv6 : No valid agent IPv6
Source IP address : 10.177.123.20
Source IPv6 address : No valid source IPv6
show sflow interface
Interface Status Sample Adapted Polling
rate sample rate interval
Egress Ingress Egress Ingress Egress Ingress
xe-0/1/0.0 Enabled Enabled 1000 1000 1000 1000 5
xe-0/1/6.0 Enabled Enabled 1000 1000 1000 1000 5
show sflow collector
Collector Udp-port Dscp Forwarding-Class No. of samples
address
10.27.4.18 6343 0 best-effort 158546
A traffic capture doesn't show any packets being sent out:
monitor traffic interface fxp0 no-resolve matching "host 10.27.4.18"
verbose output suppressed, use <detail> or <extensive> for full protocol decode
Address resolution is OFF.
Listening on fxp0, capture size 96 bytes
Can someone point me to the right direction?
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LANDER VANDENABEELE
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