Solved

Connect Network Trunk

Posted on 2010-08-23
4
978 Views
Last Modified: 2012-05-10
I have two switches in my network. The main is a Cisco 540-48. I have connected my workstation to this switch and was able to set up its IP address on our subnet.

The second switch is a Dell Powerconnect M6348. This is a switch in a blade chassis. In the past I have had this switch connect to other switched and it has worked fine and all workstations can see the servers that are connected via the Dell switch.

The problem is that I can't get traffic to flow from the Dell to the Cisco and I'm not sure why. I have tried connecting the Dell switch to the trunk ports and also the regular ports. The issue could be that the Cisco says the trunk ports are VLAN 1. However, when I try to set one of the ports on the Dell as a trunk, it accepts it, but I cannot set the VLAN number, the option is disabled. Is this supposed to be on or is something wrong?
0
Comment
Question by:Brian B
  • 2
4 Comments
 
LVL 3

Accepted Solution

by:
arthurmnev earned 400 total points
ID: 33505500
Make sure the default/native VLAN on the 802.1q trunk is the same on both sides -- some/most switches will not tag the default VLAN. If that were to happen you will end up with one side sending frames without tags and the other assigning those frames into wrong (its native) vlan.

Is the dell switch managed?
0
 
LVL 23

Author Comment

by:Brian B
ID: 33511492
Yes, the switch is managed. As I said, when I set the uplink port to a trunk, the VLAN ID box becomes disabled. However I will see if I can do anything else, or perhaps setting the trunk VLAN on the Cisco to untagged would work?
0
 
LVL 23

Author Comment

by:Brian B
ID: 33532017
According to Cisco, most switches default to vlan1 for trunks. So hopefully that means the Dell is using that convention. Still doesn't explain why the data won't go across though. I'll have to follow up with Dell as well and see if they have any ideas.
0
 
LVL 2

Assisted Solution

by:AbuAnaza
AbuAnaza earned 100 total points
ID: 33538883
you can run port mirroring on Cisco switch trunk and then capture traffic on it .... might give an insight as to what is going on

0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Suggested Solutions

Short answer to this question: there is no effective WiFi manager in iOS devices as seen in Windows WiFi or Macbook OSx WiFi management, but this article will try and provide some amicable solutions to better suite your needs.
Data center, now-a-days, is referred as the home of all the advanced technologies. In-fact, most of the businesses are now establishing their entire organizational structure around the IT capabilities.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

830 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