I have a dark fiber loop. I have a 6506 at the core and 3750 layer 3 switches at remote sites. I would like to close the loop so that if I have a fiber break, traffic can route back around to the core. If I have two GBICs - one going in each direction, what considerations do I need to take into account. Essentially it would be a widely dispersed stack. How can I force the traffic to default to the shortest path if available. I am currently using RIP.
Giuseppe is right on. I too would look at moving away from RIP. If you use EIGRP/OSPF you can load-balance across the links to the core effectively using both links. If one fails, the IGP will pull it from the routing table and all traffic will go over the working link.
Thanks all for your great input. I will actually have 5 3750's in a ring back to the 6506. Gig connections around the ring. Also am beginning to run VOIP (not Cisco)and could split that off on its own fiber pair if it makes sense. Total fiber ring is maybe 15 miles. I plan to have redundant 45Mb internet connectivity at separate sites. Any other thoughts would be appreciated.
with a correct implementation of QoS you shouldn't need a dedicated fiber link for VoIP traffic.
The devices are 5 in the ring in addition to the C6500: you can follow the schema proposed in the previous post and skip only the features for having traffic through central site that doesn't apply anymore.
In this case, there are more reasons to move to a different routing protocol like OSPF or EIGRP or your convergence time can be in the order of 30seconds * 4 = 120 seconds in addition the the RIP holdtime.
The change is also needed to support VoIP traffic: you can try to use EIGRP it should be enough to rewrite the RIP configuration using
you need to use the same AS number 100 in all of your routers.
>> Total fiber ring is maybe 15 miles
single mode fiber necessary
the redundant internet access can be configured to inject a less preferred default route to be used only if the primary fails
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...