Concept Guide

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
• To export extended-gateway data, BGP must learn the IP destination address.
• If the IP destination address is not learned via BGP the Dell EMC Networking system does not export extended-gateway data.
• 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 sFlow sampling functionality is supported only for egress trac and not for ingress trac.
The previous points are summarized in following table.
Table 83. Extended Gateway Summary
IP SA IP DA srcAS and srcPeerAS dstAS and dstPeerAS Description
static/connected/IGP static/connected/IGP — — Extended gateway data is
not exported because
there is no AS
information.
static/connected/IGP BGP 0 Exported src_as and src_peer_as
are zero because there is
no AS information for IGP.
BGP static/connected/IGP
—
Exported
—
Exported
Prior to Dell EMC
Networking OS version
7.8.1.0, extended gateway
data is not exported
because IP DA is not
learned via BGP.
Version 7.8.1.0 allows
extended gateway
information in cases
where the source and
destination IP addresses
are learned by dierent
routing protocols, and for
cases where is source is
reachable over ECMP.
BGP BGP Exported Exported Extended gateway data is
packed.
sFlow 821