Hi all!
I have configured a LACP port-channel on my Cisco 4506 on one side and a Win 2k8R2 Fujitsu Server (Intel NIC) on the other. I have three interfaces on the server that join the etherchannel without any problems. Looking at the sh int po 9, I get a strange output:
HF-SW-01-02#sh int port-channel 9
Port-channel9 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 68ef.bdaa.78d8 (bia 68ef.bdaa.78d8)
Description: BackUp Server 1
MTU 1500 bytes, BW 3000000 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 on, output flow-control is unsupported
Members in this channel: Gi3/41 Gi3/42 Gi3/43
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: 0/2000/0/0 (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 3000 bits/sec, 6 packets/sec
23017370 packets input, 34014684782 bytes, 0 no buffer
Received 3140 broadcasts (1265 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
6365464 packets output, 2159208832 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
The etherchannel consists of three 1GBit/s interfaces, but it shows only 1000Mb/s in the sh int command. When copying files to two seperate servers on the same switch, I only ge an accumulated bandwith of 1Gb/s, while I would excpect 1Gb/s per Server (I tried copying betrween the servers and the got about 1Gb/s in each direction).
Here the relevant config sniplets:
interface Port-channel9
description BackUp Server 1
switchport
switchport access vlan 15
switchport mode access
bandwidth 3000000
end
interface GigabitEthernet3/41
description 4-1-1 - hf-srv-bu-001 Team CS 1 - 10.1.15.18
switchport access vlan 15
switchport mode access
channel-protocol lacp
channel-group 9 mode active
spanning-tree portfast
spanning-tree bpduguard enable
end
!
interface GigabitEthernet3/42
description 4-1-2 - hf-srv-bu-001 Team CS 1 - 10.1.15.18
switchport access vlan 15
switchport mode access
channel-protocol lacp
channel-group 9 mode active
spanning-tree portfast
spanning-tree bpduguard enable
end
!
interface GigabitEthernet3/43
description 4-1-3 - hf-srv-bu-001 Team CS 1 - 10.1.15.18
switchport access vlan 15
switchport mode access
channel-protocol lacp
channel-group 9 mode active
spanning-tree portfast
spanning-tree bpduguard enable
end
HF-SW-01-02#sh etherchannel 9 summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 7
Number of aggregators: 7
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
9 Po9(SU) LACP Gi3/41(P) Gi3/42(P) Gi3/43(P)
HF-SW-01-02#sh etherchannel 9 detail
Group state = L2
Ports: 3 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: LACP
Minimum Links: 0
Ports in the group:
-------------------
Port: Gi3/41
------------
Port state = Up Mstr Assoc In-Bndl
Channel group = 9 Mode = Active Gcchange = -
Port-channel = Po9 GC = - Pseudo port-channel = Po9
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Gi3/41 SA bndl 32768 0x9 0x9 0x6F 0x3D
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Gi3/41 SA 255 0019.99ca.a2b7 4s 0x0 0x11 0xF 0x3D
Age of the port in the current state: 0d:00h:22m:10s
Port: Gi3/42
------------
Port state = Up Mstr Assoc In-Bndl
Channel group = 9 Mode = Active Gcchange = -
Port-channel = Po9 GC = - Pseudo port-channel = Po9
Port index = 1 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Gi3/42 SA bndl 32768 0x9 0x9 0x70 0x3D
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Gi3/42 SA 255 0019.99ca.a2b7 7s 0x0 0x11 0xD 0x3D
Age of the port in the current state: 0d:00h:22m:09s
Port: Gi3/43
------------
Port state = Up Mstr Assoc In-Bndl
Channel group = 9 Mode = Active Gcchange = -
Port-channel = Po9 GC = - Pseudo port-channel = Po9
Port index = 2 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Gi3/43 SA bndl 32768 0x9 0x9 0x71 0x3D
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Gi3/43 SA 255 0019.99ca.a2b7 7s 0x0 0x11 0xE 0x3D
Age of the port in the current state: 0d:00h:22m:11s
Port-channels in the group:
---------------------------
Port-channel: Po9 (Primary Aggregator)
------------
Age of the Port-channel = 0d:02h:39m:10s
Logical slot/port = 11/9 Number of ports = 3
Port state = Port-channel Ag-Inuse
Protocol = LACP
Port security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Gi3/41 Active 0
1 00 Gi3/42 Active 0
2 00 Gi3/43 Active 0
Time since last port bundled: 0d:00h:22m:11s Gi3/43
Time since last port Un-bundled: 0d:00h:22m:17s Gi3/43
Have I configured something incorrectly? I would like to be able to use three seperate sessions of about 1Gb/s each simultaneously.
A few words reagrding our setup:
We have two 4506e connected with an 8 x 1GB/s etherchannel. The server mentioned above (back up server) is connected to both switches with 3 links of 1GB/s each, also there are two smaller servers, each connected with 1GB/s to one of the switches.
I would like to be able to copy a file from both smaller servers to the back up server simultaneously with a combined speed of 2GB/s (or at least close to it). I am able to get speeds of 1GB/s when copying one file simultaneously.
I would greately appreciate any insight on this matter...
Cheers
Phil
