WLC Physical Port Restart

[pavel.mr4]

Hi everyone!

A customer's WLC its droping APs, in the log says the physical port was up then down, (logs attached), I look into the sw which is connected to the WLC but i couldn't find anything. could be possible that a speed mismatch or some PoE issue causes the port to restart ?

I'd really apreciate your help!

Kind regards!

[Rasika Nayanajith]

See below output for the affected port numbers

(WLC) >show stats port detailed <wlc_port_number>

HTH

Rasika

*** Pls rate all useful responses ***

[pavel.mr4]

Hi, Rasika

This is the output from the WLC

(Cisco Controller) >show stats port detailed 1

PACKETS RECEIVED (OCTETS)
Total Bytes...................................... 110256863520
64 byte pkts        :5406440
65-127 byte pkts    :9561726        128-255 byte pkts   :40798657
256-511 byte pkts   :4424290        512-1023 byte pkts  :3110283
1024-1518 byte pkts :68463227       > 1518 byte pkts    :43

PACKETS RECEIVED SUCCESSFULLY
Total............................................ 131764666
Unicast Pkts  :130664687      Multicast Pkts:504776      Broadcast Pkts:595203

PACKETS RECEIVED WITH MAC ERRORS
Total............................................ 0
Jabbers   :0               Undersize :0               Alignment :0
FCS Errors:0               Overruns  :0

RECEIVED PACKETS NOT FORWARDED
Total............................................ 0
Local Traffic Frames:0              RX Pause Frames     :0
Unacceptable Frames :0              VLAN Membership     :0
VLAN Viable Discards:0              MulticastTree Viable:0

--More-- or (q)uit
ReserveAddr Discards:0
CFI Discards        :0              Upstream Threshold  :0

PACKETS TRANSMITTED (OCTETS)
Total Bytes...................................... 113660780910
64 byte pkts        :9683905        65-127 byte pkts    :61450041
128-255 byte pkts   :15900285       256-511 byte pkts   :3917321
512-1023 byte pkts  :3144235        1024-1518 byte pkts :68400194
1519-1530 byte pkts :0              Max Info            :1522

PACKETS TRANSMITTED SUCCESSFULLY
Total............................................ 162495981
Unicast Pkts  :162317864      Multicast Pkts:75962       Broadcast Pkts:102155


TRANSMIT ERRORS
Total Errors..................................... 0
FCS Error     :0           TX Oversized  :0           Underrun Error:0

TRANSMIT DISCARDS
Total Discards................................... 0
Single Coll Frames  :0              Multiple Coll Frames:0
Excessive Coll Frame:0              Port Membership     :0
VLAN Viable Discards:0

--More-- or (q)uit

PROTOCOL STATISTICS
802.3x RX PauseFrame:0

Time Since Counters Last Cleared............... 1 day 20 hr 48 min 2 sec

(Cisco Controller) >

what are you looking for?

Kind Regards!

[Rasika Nayanajith]

Time Since Counters Last Cleared............... 1 day 20 hr 48 min 2 sec

Is this match with the WLC uptime ? 

As you can see those stats, there is no indication  of any layer 2 errors

Rasika

[pavel.mr4]

Yup, the customer told me they turned off the WLC and some switches in order to install a new UPS, but the issue was before this disconnection.

I understand since the counters were cleared we can not see any further information, right? or is there a way ?


Kind regards!