Good evening all..
I have a 4506 populated with the following modules
Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 6 Sup 6L-E 10GE (X2), 1000BaseX (SFP) WS-X45-SUP6L-E JAE151707EW
2 48 10/100/1000BaseT (RJ45) WS-X4548-GB-RJ45 JAE1518069U
3 48 10/100BaseTX (RJ45)V, Cisco/IEEE WS-X4248-RJ45V JAB084703CR
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
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 3708000 bits/sec, 446 packets/sec
5 minute output rate 8905000 bits/sec, 1118 packets/sec
725118 packets input, 726734324 bytes, 0 no buffer
Received 2053 broadcasts (301 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 773 overrun, 0 ignored
0 input packets with dribble condition detected
1638868 packets output, 1580161277 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
GigabitEthernet2/2 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is e05f.b9d3.7e61 (bia e05f.b9d3.7e61)
Description: ds1.dc g0/11 (etherchannel 2 of 2)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, 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 00:00:09, 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
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 7070000 bits/sec, 834 packets/sec
5 minute output rate 7206000 bits/sec, 846 packets/sec
1259247 packets input, 1298701012 bytes, 0 no buffer
Received 1954 broadcasts (227 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 1516 overrun, 0 ignored
0 input packets with dribble condition detected
1263407 packets output, 1265128792 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
GigabitEthernet2/3 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is e05f.b9d3.7e62 (bia e05f.b9d3.7e62)
Description: ds2.dc g0/23 etherchannel (1 of 2)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 4/255
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 00:31:10
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 16117000 bits/sec, 1760 packets/sec
5 minute output rate 4644000 bits/sec, 774 packets/sec
3748242 packets input, 4088020420 bytes, 0 no buffer
Received 2941 broadcasts (599 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 1748 overrun, 0 ignored
0 input packets with dribble condition detected
1830390 packets output, 1511582457 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
GigabitEthernet2/4 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is e05f.b9d3.7e63 (bia e05f.b9d3.7e63)
Description: ds2.dc g0/24 etherchannel (2 of 2)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, 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 00:31:12
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 406000 bits/sec, 89 packets/sec
5 minute output rate 2283000 bits/sec, 427 packets/sec
147900 packets input, 76515924 bytes, 0 no buffer
Received 4079 broadcasts (216 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 4 overrun, 0 ignored
0 input packets with dribble condition detected
942410 packets output, 727107342 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Number of channel-groups in use: 3
Number of aggregators: 3
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) PAgP Gi2/1(P) Gi2/2(P)
2 Po2(SU) PAgP Gi2/3(P) Gi2/4(P)
3 Po3(SU) PAgP Gi2/5(P) Gi2/6(P)
cs1.dc#show int po1
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is e05f.b9d3.7e61 (bia e05f.b9d3.7e61)
Description: ds1.dc po1
MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is N/A
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi2/1 Gi2/2
ARP type: ARPA, ARP Timeout 04:00:00
Last input 3d01h, output never, output hang never
Last clearing of "show interface" counters 00:35:56
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 9835000 bits/sec, 1148 packets/sec
5 minute output rate 13713000 bits/sec, 1660 packets/sec
2273559 packets input, 2337795729 bytes, 0 no buffer
Received 4557 broadcasts (620 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 2431 overrun, 0 ignored
0 input packets with dribble condition detected
3291991 packets output, 3237402619 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
cs1.dc#
cs1.dc#show int po2
Port-channel2 is up, line protocol is up (connected)
Hardware is EtherChannel, address is e05f.b9d3.7e62 (bia e05f.b9d3.7e62)
Description: ds2.dc po1
MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is N/A
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi2/3 Gi2/4
ARP type: ARPA, ARP Timeout 04:00:00
Last input 05:14:12, output never, output hang never
Last clearing of "show interface" counters 00:36:06
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 14675000 bits/sec, 1798 packets/sec
5 minute output rate 10789000 bits/sec, 1456 packets/sec
4442441 packets input, 4683901004 bytes, 0 no buffer
Received 8089 broadcasts (945 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 1871 overrun, 0 ignored
0 input packets with dribble condition detected
3264911 packets output, 2736624694 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
cs1.dc#
