CISCO and HP Switches

Posted on 2009-02-20
Medium Priority
Last Modified: 2012-05-06
hi every body

does anybody know how to configure the cisco switches to foword the vlans from the cisco switch to HP.


Question by:greekstones
  • 2
LVL 23

Expert Comment

ID: 23693492
You want to setup a port on both sides.  The VLANs you want to forward should be known by both switches in their vlan database.
on Cisco side trunk,  on HP side, make it an interconnect/tagging port

Hard set it on the Cisco side, disable DTP negotiation.

802.1q is standards based, at that point it should just work, depending on specific versions and models of switches.
If not, there may be a few other things to do..

Author Comment

ID: 23698832
thanks fr the reply

can u please give me some samples cnfigurations.


Expert Comment

ID: 23699536
LVL 23

Accepted Solution

Mysidia earned 2000 total points
ID: 23700835
On the Cisco side, you want to act as if you are going to connect a Cisco switch to the port, except you need to be sure to use 802.1q, not ISL

for example

interface fastethernet0/0
switchport trunk encapsulation dot1Q
switchport nonegotiate
switchport mode trunk

switchport trunk allowed vlans (LIST of VLANs to allow on the trunk)

The default is to allow all VLANs;  you can list specific ones, and others are disallowed,  you may need to include the native VLAN as allowed (1 by default).

You want to change VTP mode to transaprent,  unless  you actually have other connected Cisco switches that you use VTP with;  the VTP management features will in any case not work correctly with a HP switch.

If you normally utilize VTP pruning, make sure to apply to the switchport:
switchport trunk pruning vlan none

On the HP side, you want to use the UI to place the port in tagging mode and include the desired VLANs

On most HP switches, this is a web-based or menu based activity.

Featured Post

Threat Trends for MSPs to Watch

See the findings.
Despite its humble beginnings, phishing has come a long way since those first crudely constructed emails. Today, phishing sites can appear and disappear in the length of a coffee break, and it takes more than a little know-how to keep your clients secure.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
In this article, the configuration steps in Zabbix to monitor devices via SNMP will be discussed with some real examples on Cisco Router/Switch, Catalyst Switch, NAS Synology device.
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
Suggested Courses
Course of the Month14 days, 4 hours left to enroll

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question