Configuring HP to talk to CISCO 6509

[Pedro_73]

What is the command to configure an hp 2810-48 layer 3 to allow the internal vlan to communicate to a cisco switch using trunking.

On the cisco side trunking is working and it can communicate with other cisco switches, without any problems.

However, on the hp switches

1) Create VLAN 100
2) Assign an IP address for management purpose only
3) made it a primary VLAN
4) On port 48M, which is a fiber uplink 1000, is configur for trunking, untagged.

The switch shows a green indicating that is an active port. But, the HP switch will not communicate with CISCO switches. Again, the communicating channel is thru the fiber uplink 1000.

Am I missing something on the HP side?

Can someone help me, perhaps with a simple configuration on how to configure the HP to allows VLAN talk to a CISCO switch that is using 802.1Q protocol?

Thanks

[Bruce Campbell_3]

Here is an example connecting gig1/1
on Cisco to port 1 on HP, with vlan 100,
tagged, on both ports:

On Cisco:

interface GigabitEthernet1/1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100
switchport mode trunk

On HP:

vlan 100
tagged 1


If you are running spanning tree
rstp or stp on the HP, I'd suggest
turning it off on the connection to
the Cisco (again assuming port 1 on
the HP):

spanning-tree 1 bpdu-filter

Because pvst on Cisco isn't fully
compatible with rstp/stp.

Or, switch to mstp on both HP and Cisco.

[Pedro_73]

When you mention tagged 1, do you mean port 48M which is the fiber uplink?

[Bruce Campbell_3]

Yes, my example was based on port 1
on both the HP and Cisco.