I'm pinging a device from a switch that keeps err-disabling from link flap. I've disabled link flap detect on the switch so it doesn't keep going down. The PC and switchport are both set to 100 full. I've moved the PC to a different switch and still the same result. When I first start pinging, the pings are pretty good. Then after a couple of minutes they start looking like below.
sh int fa0/41
FastEthernet0/41 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0014.f27a.6b2d (bia 0014.f27a.6b2d)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters 00:23:54
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
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