I would suggest going in for two chassis working for L2 and L3 redundancy. Its a much better option. Say if the power supply of the chassis fails, when you have dual sup, then dual sup if of no use!
Moreover with two chassis, you can configure HSRP for all vlans and also you can team-up your servers which provides you with high resiliency and scalability. Although all of it is possible with dual sup as well but then its not of much use in that scenario.
the second option with provide high scalability & requires complex configuration configuring both L2 and L3 protocols.
on the other hand first model provide less scaslibility (b/c if access switches are connected with redundent link to same core), configuration would be lot easier , and convergence time will be very less.
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.