Cisco Ace GSS Vs Bind
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10-01-2010 11:36 AM
I have a client that implements its data center redundancy via BIND using its DNS features. I´m trying to sell cisco Gss to that customer. What are the improvements that I could get with Cisco GSS? Just the DOS protection and interconection with ACE for health checking?
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10-20-2010 10:26 AM
Mario-
The GSS itself is meant to be an intelligent DNS server. What it provides:
1.) Probing for the answers it sends back to clients, dynamic removal of answers if probes fail.
2.) Failback clauses - if a primary set of answers are all unavailable, multiple other groups can be configured. This allows multiple levels of failure mitigation.
3.) Load based answering - using Kal-AP, the GSS can probe a CSS, CSM, or ACE device to determine which site is most/least loaded and send answers for a site accordingly.
4.) Proximity based answering. The GSS uses DRP agents to find which GSS is local to the client D-proxy and pull answers for that specific site.
5.) DOS attack prevention.
6.) CNR (full DNS server - a stand alone GSS only responds to A queries or forwards requests to an NS server.)
GSS Admin Guide
GSS Configuration Guide
GSS - CNR Installation
CNR configurations
http://cco.cisco.com/en/US/docs/net_mgmt/network_registrar/6.0/command/reference/cliref.html
