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SG220 with Cisco 2602 and 2702 APs - Interface input errors - throttles - CDP disappearing

I have a few SG220 switches with code 1.0.0.19 and ports are show input errors and throttles on ports connected to APs.  I am seeing it impacting wireless connectivity as well connected to Cisco 2602i and 2702i APs running 8.0.121.0.

I believe this may be related to Cisco Bug ID - CSCuy16641 -

Link here - Cisco Bug CSCuy16641

I see there is no official workaround but this is effecting multiple locations of a new implementation. Any assistance would be helpful.

Here is what I see from the switch port - show interface gi 1

Hardware is Gigabit Ethernet
Auto-duplex, Auto-speed, media type is Copper
flow-control is off
back-pressure is enabled
1355 packets input, 232707 bytes, 211 throttles
Received 157 broadcasts (111 multicasts)
0 runts, 0 giants, 211 throttles
211 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
111 multicast, 0 pause input
0 input packets with dribble condition detected
7407 packets output, 872264 bytes, 0 underrun
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 PAUSE output

I tried disabling back pressure - setting speeds down to 100 Full.  Even used a know good patch cable directly to the AP as to eliminate cabling errors.  I am seeing this result on ALL of my SG220 switches that have APs on them.  I have these APs setup on SG500 and SG300 series switches in this environment and no issues.  Only looks like the SG220s.

Thanks in advance.

  • Small Business Switches
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