HP procurve 4108 and cisco 2960

cheapcco1 · ‎08-13-2011

I am trying to trunk a couple ports on my hp switch to a couple ports to my cisco.

Config for HP:

interface G7

no lacp

exit

interface G10

no lacp

exit

trunk G7,G10 Trk1 Trunk

spanning-tree Trk1 priority 4

spanning-tree Dyn1 priority 4

Cisco:

spanning-tree mode pvst

spanning-tree etherchannel guard misconfig

spanning-tree extend system-id

!

interface GigabitEthernet0/23

switchport mode trunk

!

interface GigabitEthernet0/24

switchport mode trunk

!

I don't speak HP very well so I am sure it's the config on the HP. Any thoughts what is wrong?

Thanks!

-j

m.trautes · ‎08-14-2011

Hello,

HP Trunk is not the same what Cisco Trunk mean.

At Cisco Trunk mean = some VLAN´s go over this line

At HP Trunk mean = some Ports go together (at Cisco = Etherchannel)

So you must confiure a Etherchannel on the Cisco Switch - when you want to couple ports

http://http://www.cisco.com/en/US/partner/docs/switches/lan/catalyst2960/software/release/12.2_55_se/configuration/guide/swethchl.html

andtoth · ‎08-14-2011

Hi Jennifer,

What would you like to achieve? Carry multiple vlans on the links or have link aggregation to achieve higher bandwidth?

For carrying multiple vlans, the switchport mode trunk is correct on the Cisco side, you'll need to find out how to configure vlan tagging on the HP side. The following documentation might help:

ftp://ftp.hp.com/pub/networking/software/59692378.pdf

If you want to have a link/bandwidth aggregation, you will need to use EtherChannel on the Cisco side. Please note that it's recommended to use LACP mode on both the Cisco and HP sides to have proper etherchannel negotiation. The following documentations will help you:

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a0080094647.shtml

http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_example09186a00800ef797.shtml

http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_55_se/configuration/guide/swethchl.html

Best regards,

Andras