Important Points To Remember - Dell C9000 Series Networking Configuration Manual

Collector IP addr: 10.10.10.3, Agent IP addr: 10.10.0.0, UDP port: 6343
77 UDP packets exported
0 UDP packets dropped
165 sFlow samples collected
69 sFlow samples dropped due to sub-sampling
Linecard 1 Port set 0 H/W sampling rate 8192
Gi 1/16: configured rate 8192, actual rate 8192, sub-sampling rate 1
Gi 1/17: configured rate 16384, actual rate 16384, sub-sampling rate 2
Linecard 3 Port set 1 H/W sampling rate 16384
Gi 3/40: configured rate 16384, actual rate 16384, sub-sampling rate 1
If you did not enable any extended information, the show output displays the following (shown in bold).
Dell#show sflow
sFlow services are disabled
Global default sampling rate: 32768
Global default counter polling interval: 20
Global extended information enabled: none
0 collectors configured
0 UDP packets exported
0 UDP packets dropped
0 sFlow samples collected
0 sFlow samples dropped due to sub-sampling

Important Points to Remember

• If the IP source address is learned via IGP, srcAS and srcPeerAS are zero.
• The srcAS and srcPeerAS might be zero even though the IP source address is learned via BGP. The c
system packs the srcAS and srcPeerAS information only if the route is learned via BGP and it is reachable
via the ingress interface of the packet.
The previous points are summarized in following table.
Table 82. Extended Gateway Summary
IP SA IP DA
static/ static/
connected/IGP connected/IGP
static/ BGP
connected/IGP
BGP static/
connected/IGP
srcAS and dstAS and
srcPeerAS dstPeerAS
— —
0 Exported
— —
Exported Exported
Description
Extended gateway
data is not exported
because there is no
AS information.
src_as and
src_peer_as are
zero because there
is no AS information
for IGP.
The system allows
extended gateway
information in cases
where the source
and destination IP
addresses are
learned by different
sFlow 1039