nanog mailing list archives
Re: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS
From: "Forrest Christian (List Account)" <lists () packetflux com>
Date: Fri, 25 Jan 2019 07:45:07 -0700
I'm personally aware of dozens and dozens of OSPF deployments, but not aware of a single IS-IS deployment. This is among smaller consumer ISPs, with typically up to around 10K customers. I'm sure a big reason for this is that IS-IS support isn't all that common in the lower end routing gear often used by these providers. On Fri, Jan 25, 2019, 7:16 AM Steven Bahnsen <sbahnsen20 () gmail com wrote:
Hi, First time poster looking for some input on a debate and I apologise if I've done this completely wrong, but I don't think my colleague will be convinced until he hears it from this community. Granted I'm relatively green when it comes to networking, but it was my understand that other than BGP, the most widely used/implemented IGP would be OSPF. However, my colleague insists that I'm 100 percent wrong and that is IS-IS. I want to be clear, I'm not debating which protocol is better or worse, as they both have their strengths and weaknesses and ultimately it comes down to several factors based on a particular use-case on which routing protocol is the best way forward for a network. However in saying that, I believe that, when it comes to sheer numbers of where an IGP is implemented, OSPF is far more widely used in the world today, whether it be in small to medium to large businesses, Enterprise networks and even Service Provider networks (where as per my understanding, is where IS-IS really shines) I understand that this isn't really quantifiable, but I would like to get the opinions/experiences from this list and see what the outcome of this question is out of sheer curiosity. Thanks! Steve
Current thread:
- [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Steven Bahnsen (Jan 25)
- Re: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Tom Beecher (Jan 25)
- Re: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Tom Hill (Jan 25)
- Re: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Saku Ytti (Jan 25)
- RE: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Aaron Gould (Jan 25)
- Re: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Forrest Christian (List Account) (Jan 25)
- Re: [ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS Randy Bush (Jan 25)