Could someone please validate the below proposed design per redundancy perspective:
2 Cisco 4506 as core with Catalyst 4500 Supervisor IV (2 GE),Console(RJ-45)
2 Cisco 2821 series routers with 2821 w/ AC PWR,2GE,4HWICs,3PVDM,1NME-X,2AIM,IP
2 Cisco 3750 Distribution switches Catalyst 3750 12 SFP + IPB Image
10 Catalyst 3560 48 10/100 PoE + 4 SFP IPB Image access switch AND
2 ASA 5520 Appliance with SW, HA, 4GE+1FE, 3DES/AE including AIP-SSM 20.
-- The two different ISP routers are connected with two Layer 2 switches. Is this right approach?
-- The two ASAs are configured in Active-Standby mode and connected to Layer-2 switch on 'outside' port.
-- The two 4506 switch configured with HSRP on LAN side and connected to both the ASAs on 'inside' port.
Let me write if i am wrong somewhere.