Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

OSPF design choices

Posted on 2011-02-14
4
Medium Priority
?
466 Views
Last Modified: 2012-05-11
I am setting up a couple of new links to a remote office and would like to use OSPF for dynamic routing.  The primary link will be a 2MB Mpls link and the secondary will be a GRE vpn tunnel over the internet.  I am still in the planning/design phase and I am wondering about the best choice and best practice in terms of assigning the router-id's as I understand this will dictate which router will become the DR.  I am looking for a suggestion on whether or not I should use a loopback address or just manually configure the router-id?  Also,  what IP addressing is the safest to use for router-id scheme and also what would be the best router to choose as the DR assuming all the routers are the same in terms of processing power and memory?

thanks
0
Comment
Question by:FREDARCE
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 50

Expert Comment

by:Don Johnston
ID: 34890036
The loopback/router ID method was created so we could have control over the router ID. Once the "router-id" command was implemented, using the loopback interface method was no longer needed. Personally, I like using the "router-id" command.

As for addressing, I like to use numbers that stand out from IP addresses. For example, I typically use 1.1.1.1, 1.1.1.2, 1.1.1.3, etc.

But since it's a just a router ID, you can use any 32-bit dotted decimal number you want.
0
 

Author Comment

by:FREDARCE
ID: 34890101
thanks donjohnston,

What about deciding which router should be the DR?  What would be the influences for determining this?
0
 
LVL 50

Accepted Solution

by:
Don Johnston earned 2000 total points
ID: 34890132
If the connection is a point-to-point link, there is no DR. If it's not (and a DR election takes place), I would go with the router that has more CPU and memory.
0
 

Author Closing Comment

by:FREDARCE
ID: 34890153
thanks
0

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

Quality of Service (QoS) options are nearly endless when it comes to networks today. This article is merely one example of how it can be handled in a hub-n-spoke design using a 3-tier configuration.
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.
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …

661 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