I have 2 etherchannels on blade two G2/1 and G2/2 po1 and G2/3 and G2/4 po2 both interfaces are experiencing overruns which are incrementing
(see below with last clearing 31 mins ago) Traffic over the averages are not even close to full utilization. There is an iSCSI SAN on this blade and VM hosts connect to it from the 2960G's and my server guy is complaining about latentcy to the SAN. 1000 1500byte pings to each 2960 show 1/1/10 at most with 100%. Any ideas or input would be most helpful. This configuration was working fine prior to a move.. The switches were stood up exactly the same as they were at the old site.
GigabitEthernet2/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is e05f.b9d3.7e60 (bia e05f.b9d3.7e60)
Description: ds1.dc g0/4 (etherchannel 1 of 2)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 2/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:01, output never, output hang never
Last clearing of "show interface" counters 00:31:08
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
You might want to try separating the channels across more of the card instead of having them on consecutive ports and see what happens . Leave the first where it is , 2nd maybe in the port 20 range and third in the upper 30 range just to separate them . Also look at the utilization on the 2960's at the time of complaint using show controllers utilization .
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