Solved

VLAN trunking across a DS3

Posted on 2004-08-12
1
607 Views
Last Modified: 2012-06-21
Is it possible using any known protocol to trunk vlans across a DS3 connection between two sites?


Site A                                                         Site B                                                 Internet
company  <------------------------------------> ISP / DR Site <------------------------------->
                        DS3                                                                   upstream to internet

Please keep in mind that the company A is the main network and at the DR site we have a seperate fail over network that is connected over a VPN tunnel that rides on top of the DS3.  We want to combine the two networks into one seemless network with our main network VLANS going to the DR site or site B.
0
Comment
Question by:jdbrooks99
1 Comment
 
LVL 3

Accepted Solution

by:
fatlad earned 250 total points
ID: 11791114
VLANs are a layer 2 feature, I suspect that the DS3 will be terminated by routers which are layer 3 devices.

Are you sure you want to pull VLANs over a LAN, bare in mind that they are boradcast domains and so any boradcasts from site A will travel over your expensive DS3, taking up bandwidth.

Perhaps a better option could be to split the sites with a VTP domain at each, both with the same number of VLANs (possibly even with the same names). If you use an ACL on each router you could create it so that only VLANA1 can talk to VLANB1. Depends what you are trying to do.

Hope that helps.

FatLad
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

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.
Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
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…

839 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