User guide

518
pmp-0229 (Mar 2013)
Viewing Data VC Statistics (All) Using Informational Tabs in the GUI
Attribute Meaning
indiscards This field displays how many inbound packets were discarded
without errors that would have prevented their delivery to a
higher-layer protocol. Inbound discard statistics are incremented
similar to the indiscards stat on the RF control block stats page.
The sum of all data VC indiscards should be close to the RF
control block in discards. If indiscards are evenly distributed
across SMs, then the radio is PPS limited due to either excessive
small packet transmissions, or a problem at the Ethernet link. If
indiscards are contained to one or a few SMs, then there is likely a
problem at or underneath the SM which is incrementing the count.
inerrors This field displays how many inbound packets contained errors
that prevented their delivery to a higher-layer protocol.
outoctets This field displays how many octets were transmitted out of the
interface, including those that deliver framing information.
outucastpkts This field displays how many packets for which the higher-level
protocols requested transmission to a subnetwork-unicast address.
The number includes those that were discarded or not sent.
outnucastpkts This field displays how many packets for which the higher-level
protocols requested transmission to a non-unicast (subnetwork-
broadcast or subnetwork-multicast) address. The number includes
those that were discarded or not sent.
outdiscards This field displays how many outbound packets were discarded
without errors that would have prevented their transmission.
Outbound discard statistics are incremented if a VC is not active
when a packet is ready to send. This is a rare condition.
outerrrors This field displays how many outbound packets contained errors
that prevented their transmission.
Queue Overflow This is a count of packets that were discarded because the queue
for the VC was already full. This stat will indicate congestion on
the outbound RF link to a particular SM. If Queue Overflows are
being seen across most or all SMs, then there is either an interferer
local to the AP or the APs RF link is at capacity. If Queue
Overflows are being seen at one or only a few SMs, then it is
likely that there is a problem with those specific links whether it is
insufficient signal strength, interferer, or a problem with the actual
SM hardware.
High Priority Queue P7/P8 Radio types only. This column indicates packets sent over
the P7/P8 software-implemented high priority queue.