VPN Failover for Data/VoIP through ASA 5520 or 7204 VXR
I would like to setup a VPN failover for my remote sites using broadband 3dn/1up. These are mainly 2800series routers. I have as options for hub termination a Cisco ASA Active/Standby pair and a 7204 VXR. Voice and Data will be going down the failover VPN and I plan on having QOS/Traffic shaping in place in order to best serve the needs for VoIP as possible. I need to do this on about 150 sites. My questions are:
1. Which is better for this the ASA or the 7204
2. Will VoIP packets flow through both the same way
3. As far as redistribution of routes can I use GRE on an ASA or should I keep it all static. NH on the ASA is a L3 switch.
4. Can an ASA with 100mg of bandwithd via Metro E handle 150 tunnels doing VoIP and data. 1 to 3 calls per site max.
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