Hi, I have ASA 5520 sitting between Backbone_Switch and Internet_RTR
ASA is running Site-2-Site VPN, Remote Access VPN, Inbound+Outbound SMTP and Internet_browsing
traffic for LAN users.
How could I know each service is accumulation how much bandwidth?
example ( How much internet_browsing traffic usuage in-out traffic )
Total bandwidth 6MB.
Possible to have bandwidth limitation on ASA based on services for inbound/outbound traffic ( site-2-site vpn, SMTP, RA, Internet traffic from LAN )
You can police traffic on the ASA based on service, ports, ACLs etc. https://supportforums.cisco.com/docs/DOC-1230 gives some examples of how to do it.
As for bandwidth statistics, I think you best bet is Neflow with ASA 8.2. Here is the wirki for it https://supportforums.cisco.com/docs/DOC-6113 Another choice might be ASDM top talker feature and or ACL top hits.
I hope it helps.