The rule of thumb is do not have more than 50 routers in an OSPF area, You design is pretty clean so you can have core's in area 0, all distribution in single area or you may have each distribution in separate areas. I have few suggestions here to make, could work for you and may not
1. the uplinks are 10g from Core to Dist, use Auto-cost reference bandwidth command on all core and dist so that 10g has cost of 1, otherwise any thing with 100 megs or above will have the same cost of 1.
2. Design areas where you can summarize the subnets, so that only summarize routes are advertised by ABR (Dist)
3. if DR and BDR are not required use point to point interface type for OSPF btw dist and core.
4. Design the serverfarm in such a way that if later point of time firewall is introduced to protect SF, you may need not stress at that point of time.
5. User RPVST+ at access switches with root as the active router of First hop redundancy protocol.
6. Think of any future link to be introduced between Distributions, if there is possibility, merge those distribution as single area ( for the sake of simplicity)
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.