06-03-2009 05:33 AM - edited 03-06-2019 06:04 AM
I have a HP Server that I want to setup to use an etherchannel for 2Gbs bandwidth. I keep having the same problem, one of the NIC's will only negotiate 100mbs/full and the other will negotiate the full 1000mbs/full. I have had this issue on 2 HP servers now and I cant seem to figure out the problem. I have followed this guide with no success. Also if I try to statically set the speed/duplex it acts like the network cable is disconnected.
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Here is my configuration and some show information....
rmprodsw01#sh run int g2/27
Building configuration...
Current configuration : 203 bytes
!
interface GigabitEthernet2/27
description RMSTAGEBACKUP01-A-Po2
switchport
switchport access vlan 51
switchport mode access
no ip address
spanning-tree portfast
channel-group 2 mode active
end
rmprodsw01#sh run int g2/39
Building configuration...
Current configuration : 203 bytes
!
interface GigabitEthernet2/39
description RMSTAGEBACKUP01-B-Po2
switchport
switchport access vlan 51
switchport mode access
no ip address
spanning-tree portfast
channel-group 2 mode active
end
rmprodsw01#sh run int po2
Building configuration...
Current configuration : 101 bytes
!
interface Port-channel2
description PORT_CHANNEL_TO_STAGEBACKUP01
switchport
no ip address
end
rmprodsw01#sh int status | inc STAGEBACK
Gi2/27 RMSTAGEBACKUP01-A- connected 51 a-full a-100 10/100/1000BaseT
Gi2/39 RMSTAGEBACKUP01-B- connected 51 a-full a-1000 10/100/1000BaseT
rmprodsw01#sh ether summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
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
Number of channel-groups in use: 4
Number of aggregators: 5
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
2 Po2(SD) LACP Gi2/27(I)
2 Po2A(SU) LACP Gi2/39(P)
06-03-2009 05:56 AM
HP/Broadcom NICs and Cisco switches don't negotiate well. Hard set the switch ports and the NIC's to 100/full.
Hope that helps.
06-03-2009 02:02 PM
I would check your cable . Gigabit speed needs all 8 wires to be in good in order to run gigabit so if its negotiating 100 meg then maybe 1 or more wires are faulty in your cable path .
06-03-2009 02:41 PM
Have you tried to remove LACP and just use mode on ? and see what happens?
I have seen problems like this before and doing that worked out.
channel-group 2 mode on
Perhaps, the HP server isn't being able to negotiate with the switch using LACP as it should.
06-04-2009 07:15 AM
Thanks for all your replies, I did try to hard set the speed/duplex but that only resulted in the network card thinking the cable was disconnected. I replaced all the network cables and tried "channel-group 2 mode on", all with no resolution. I upgraded all the firmware on the card and all drivers, and still nothing. At this point Im thinking this is a hardware problem (even though it seems weird the card would just stop working at 1000Mbs). I tried the same configuration on another HP server and it worked just fine, and I know this working on this particular server in the past.
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