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тАО11-22-2006 12:23 AM
тАО11-22-2006 12:23 AM
Cisco / hp2524 VLAN trunk and vtp issues
Hi
We got a network consisting of 10-15 hp 2524 switches. Everything on the same /24 subnet.
Now I want to do a few alterations.
* Segment the network into VLAN segments with the inter VLAN routing situated in a (new) Cisco 3560 I am going to place inside the FW.
* Extend the network with a few cisco 2960 switches. Between all the switches I want to trunk the VLANs so all the VLANs are accessible from all switches.
1. I am not really sure how to set up the trunk between the HP and Cisco switches.
2. I want to define the VLAN database in the c3560. How do I get the 2524 to accept the VTP info from the C2960?
We got a network consisting of 10-15 hp 2524 switches. Everything on the same /24 subnet.
Now I want to do a few alterations.
* Segment the network into VLAN segments with the inter VLAN routing situated in a (new) Cisco 3560 I am going to place inside the FW.
* Extend the network with a few cisco 2960 switches. Between all the switches I want to trunk the VLANs so all the VLANs are accessible from all switches.
1. I am not really sure how to set up the trunk between the HP and Cisco switches.
2. I want to define the VLAN database in the c3560. How do I get the 2524 to accept the VTP info from the C2960?
2 REPLIES 2
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тАО11-22-2006 01:36 AM
тАО11-22-2006 01:36 AM
Re: Cisco / hp2524 VLAN trunk and vtp issues
You won't be able to get them to talk VTP as that's a proprietary Cisco protocol. You should be able to get GVRP working however.
For a very basic overview, on the 2524 you would create the VLANs, then on the uplink port leave the default VLAN 1 as untagged, and tag all the other VLANs.
On the Cisco you create the same VLANs and make it a trunk port using 802.1q encapsulation.
For a very basic overview, on the 2524 you would create the VLANs, then on the uplink port leave the default VLAN 1 as untagged, and tag all the other VLANs.
On the Cisco you create the same VLANs and make it a trunk port using 802.1q encapsulation.
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тАО11-22-2006 01:57 PM
тАО11-22-2006 01:57 PM
Re: Cisco / hp2524 VLAN trunk and vtp issues
VTP-GVRP interaction is possible on Cisco switches running CatOS 5.3 or higher. These Catalyst switches can be configured to distribute the VTP learned or configured VLANs via GVRP to HP ProCurve switches.
But Cisco never implemented GVRP on Cisco IOS switches. Therefor you need to configure the VLANs manual on the Cisco-HP links:
Cisco example:
interface x/y
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,30,40
switchport mode trunk
switchport nonegotiate
HP example:
vlan 1
untagged
exit
vlan 10
tagged
exit
vlan 20
tagged
exit
vlan 30
tagged
exit
vlan 40
tagged
exit
But Cisco never implemented GVRP on Cisco IOS switches. Therefor you need to configure the VLANs manual on the Cisco-HP links:
Cisco example:
interface x/y
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,30,40
switchport mode trunk
switchport nonegotiate
HP example:
vlan 1
untagged
exit
vlan 10
tagged
exit
vlan 20
tagged
exit
vlan 30
tagged
exit
vlan 40
tagged
exit
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