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One-sided link down Cisco - HP GbE2 Switch

 
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Advisor

One-sided link down Cisco - HP GbE2 Switch

Hi all,

I'm running into some problems connecting my GbE2 Switch to a Cisco 6506 2-system VSS setup.

The Blade side link is UP, while the Cisco side link remains 'notconnect'.

It's a change to a tagged setup with etherchannel link.

I've added the configuration of Switch A and some Cisco output (with LACP etherchannel and last summary normal etherchannel).

No matter which setup I try the link remains not connected.

What I've tried.
- reconfig from normal etherchannel (mode on) to LACP (mode active) on the cisco
- changed hardware: SFPs/cabling/fysical connection from switch 1 to switch 2 of the VSS system/changed uplink from sw A to sw B
- tried single link uplink, no etherchannel
- re-entered 'no shutdown' on the cisco interfaces

But no help there, the cisco side stayed notconnect.

Any help is appreciated!
20 REPLIES 20
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Honored Contributor

Re: One-sided link down Cisco - HP GbE2 Switch

" switchport nonegotiate" missing on port 2/2/10 ?

what happens if you only connect one port of the configured channel?
what messages occur in the log of the switches?
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Advisor

Re: One-sided link down Cisco - HP GbE2 Switch

I have only tried 1 physical connection.
So 1 fiber from 1 bladeswitch to 1 coreswitch:
1/2/10 OR 2/2/10.
Both react the same way.

I have an small update though.

I configured port 21, which was in use before the reconfig in an uplink to an other enclosure (so that port worked) as a part of the trunk 2 as well.
Connected that one to port 1/2/10 of a cisco core: not connected
removed that port from the port-channel on the cisco, et voila: trunked and working:
blade trunk -> cisco core no-etherchannel

tried the same cable to the other port/core 2/2/10: not connected.

reconnected that same cable to the 1ste core again to get it working again: notconnected!

On all situations the bladeswitch notified as link going up on physical connection of the cable.

And it hasn't worked since.
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Honored Contributor

Re: One-sided link down Cisco - HP GbE2 Switch

I don't see any reference to LACP in your GbE2 switches config
The default value is off

/cfg/l2/lacp/port mode off|active|passive

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Honored Contributor

Re: One-sided link down Cisco - HP GbE2 Switch

the manaul also display an "apply" command

>> # /cfg/l2/trunk 5 (Select trunk group 5)
>> Trunk group 5# add 19 (Add port 19 to trunk group 5)
>> Trunk group 5# add 20 (Add port 20 to trunk group 5)
>> Trunk group 5# ena (Enable trunk group 5)
>> Trunk group 5# apply (Make your changes active)
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Advisor

Re: One-sided link down Cisco - HP GbE2 Switch

LACP of on the blades? ok! that's new info. I didn't read about having to enable it in any HP document I came across.

I will try that after the weekend.

Of course I did do an apply to make the changes active.

Thank you for thinking with me!
Highlighted
Advisor

Re: One-sided link down Cisco - HP GbE2 Switch

Hi Pieter,

I've only just been able to check the LACP settings.

Unfortunately it doesn't seem to be an option in my switch.
There is no l2 nor lacp sub menu.

My current switch hardware + software:

HP ProLiant BL p-Class F-GbE2 Interconnect Switch A
sysName: DNB-ENCL01-SW01
sysLocation:
RackId: ******
RackName: Rack1
Enclosure: ******
EnclosureName: Enclosure1
Slot: A

Switch is up 4 days, 2 hours, 8 minutes and 41 seconds.
Last boot: 2:38:14 Fri Sep 24, 2010 (reset from console)

MAC address: 00:0e:62:33:34:00 IP (If 1) address: ******
Revision: 0A
Switch Serial No: ******
Hardware Part No: 336181-001 Spare Part No: 321148-001
Interconnect Module Part Number : 283193-B21 Spare Part Number: 321146-001
OctalFC Module Part Number : 321745- 21 Spare Part Number: 321145-001
Software Version 2.1.0 (FLASH image1), active configuration.
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Advisor

Re: One-sided link down Cisco - HP GbE2 Switch

I've used the following document to make my changes. It doesn't refer to lacp settings on the bladeswitch though:

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00457828/c00457828.pdf
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Honored Contributor

Re: One-sided link down Cisco - HP GbE2 Switch

it doesn't refer to LACP but to IEEE 802.3ad trunking.

I miss step 3 in your config.

3. On both Cisco 6509 switches, enable 802.1Q tagging (VLAN trunking) on all ports connected to both GbE2 Interconnect Switches per the command:
6509# set trunk / nonegotiate dot1q 1-2
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Advisor

Re: One-sided link down Cisco - HP GbE2 Switch

I could try setting "switchport nonegotiate" on the port-channel on the cisco

the exact frase cannot be used as the document refers to CatOS config and ours is IOS based config.