i understand the concept of network virtualization in brief. if it has to exist on a network how it looks?
we are looking to ugrade our network infrastructure. we have 6500 switches ( not with 720 sups) as lan gateways.
7200 routers for wan connectivity between multiple sites. 3548 access layer switches
what devices and ugrades will be required if network virtualization is to be deployed. our major project coming is ip telephony. implement voip.
we need PoE switches. like wise with ip telephony how to mix and prepare a business case for network virtualization.
what benefits we can have? we provide 3rd party access to systems.
how do 10 gigabit uplinks, nexus, vss , access layers stack switches fit in and can be used to provide powerful, sustainable, failover proof, high speed, very secure network virtualized network
what technologies, configuration can be used. what business case to prepare?