topic Hi, did TAC come back with in Wireless

Tx Unicast Packets on 2702 giga1?

Finn Rud Laursen — Mon, 05 Jul 2021 09:08:53 GMT

Hi all,

A few days ago I came across a weird observation.
The interface gi1 on the 2702 sends out Tx Unicast Packets and Tx Non-Unicast Packets. The interface in not in use and in down state.

Does anyone know why?

Details on the interface

Can you check the actual TX

Saurav Lodh — Thu, 18 Dec 2014 19:10:52 GMT

Can you check the actual TX figures from issuing " show interface XX " to down interface of the AP?

Hi Saurav,The interface is

Finn Rud Laursen — Fri, 19 Dec 2014 06:28:39 GMT

Hi Saurav,

The interface is not connected to anything. I don't think its a problem, it was just an observation..

Hrs-AP-B2-T5-6#sh inter gi1
GigabitEthernet1 is up, line protocol is down
Hardware is PowerPC Ethernet, address is f8c2.882e.17a1 (bia f8c2.882e.17a1)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto Duplex, Auto Speed, media type is T
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/18174/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
Hrs-AP-B2-T5-6#

/Finn

So the information Prime

Freerk Terpstra — Mon, 22 Dec 2014 07:28:11 GMT

So the information Prime Infrastructure shows is probably wrong. Big change that this is a bug, do you see this behavior on more 1700/2700 AP's? And what is your current WLC and PI software version?

Hi Freerk,Yes it looks like a

Finn Rud Laursen — Mon, 22 Dec 2014 07:28:12 GMT

Hi Freerk,

Yes it looks like a Prime bug.
I see this on all my 2702. No impact on performance, everything fine.
I have no 1702 at the moment.

Prime version 2.1 (2.1.0.0.87)

hi, i have the same thing

saxenanitesh8522 — Tue, 23 Dec 2014 18:26:06 GMT

hi,

i have the same thing happening in my 2700 series also, but i am seeing the information in the WLC itself.. it shows me sending the tx also..

its affecting my performance of the clients connected to it..

After reading your message I

Freerk Terpstra — Wed, 24 Dec 2014 20:45:53 GMT

After reading your message I did some testing and found out the same. It is not a bug in Prime nor the WLC software, it is the access-points who gives this information back to the WLC.

AP#sh interfaces gigabitEthernet 1 stats
GigabitEthernet1
          Switching path    Pkts In   Chars In   Pkts Out Chars Out
               Processor          0          0 4294967293 4294966786
             Route cache          0          0          3        510
                   Total          0          0          0          0
AP#

Our customers are not experiencing any performance penalty as I know off. I opened a TAC case to get some clearness about this. If I have more information, I will share it in this topic.

Hi, did TAC come back with

saxenanitesh8522 — Sat, 03 Jan 2015 18:53:48 GMT

Hi,

did TAC come back with anything???

They are testing it in there

Freerk Terpstra — Tue, 06 Jan 2015 20:25:53 GMT

They are testing it in there lab, however it has been silent for a while because of the holidays.

Update (5 January): This behavior is being showed with 7.6.130 and 8.0 software and is being registered in bug CSCus37442 which should be visible in CCO in a day or two.

Re: Tx Unicast Packets on 2702 giga1?

onseo — Tue, 26 Mar 2019 13:42:23 GMT

We have the same problem.
Its affecting my performance of the clients too.
WLC 3504, APs 2702.
Software 8.5.140.0

Re: Tx Unicast Packets on 2702 giga1?

patoberli — Tue, 26 Mar 2019 15:34:10 GMT

This should not affect client performance at all, as this was/is just cosmetic.
I suggest you open a fresh thread for your issue. Do you have anything connected to the second LAN port?