For the purposes of this question I have two sites, each site has an OC3 to an MPLS cloud. Each MPLS router is running BGP and EIGRP. I'm redistributing EIGRP into BGP and BGP into EIGRP. Also at each site is a Frmae Relay backup network off of the LAN, which is running the same EIGRP AS as the MPLS router. I want all of the traffic to take the MPLS network, however since the MPLS routes are being redistributed into EIGRP they are external EIGRP routes, while the frame relay routes are internal EIGRP so all of the traffic is traversing the frame network rather than MPLS.
What is the best way to get the redistributed BGP routes to be preferred over the EIGRP routes? I've see different ways to do this and have gotten conflicting information.
I can't read .vsd files so this may not be relevant. Perhaps you could post as a .jpg.
Anyway, if your 2 WAN routers (MPLS/frame-relay) connect back to a core pair of switches easiest way is to have the MPLS router redistributing full routes into EIGRP and have your frame-relay only dsitributing a default-route. The core switches will then see a default via frame but will only use that if the full routes are not being received.
If you are also redistributing a default-route from the MPLS router you could use a floating static on the core switches pointing to the frame-relay router and then simply not distribute an EIGRP learned routes from the frame router to the core switches.
The frame router exchanges EIGRP internal with the other end and so is preferred
The internet connected router showing IPSEC GRE tunnel - is this also exchanging EIGRP routes ? And what is the order you want to use the links ie.
The MPLS circuit is new and will be replacing the IPsec/GRE tunnel between the sites. So that can be ignored, I should have taken it out of the diagram. So I am looking for all traffic to go over the MPLS circuit and fail over to the frame circuit.
1) it's not clear which routers will be disappear from the topoplogy when you get rid of the IPSEC/GRE but it looks like the main router connecting to the internet router will stay as it has at least one other router connecting to it. So using a floating static would mean adding it to 2 routers ie. the one on the right of the frame router and the one below. You would then need to stop the frame router from sending any EIGRP routes to these routers.
But messy, especially considering the routers hanging off the bottom router may also be receiving EIGRP routes.
2) Change the AD of internal EIGRP as you suggested and then in all probability you would need to use an offset-list on the frame router to make sure that the routes redistrinuted from BGP are preferred within the site.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.