DCA2

From SuperbHosting.net Support Wiki

Our DCA2 advanced Data & Network Operations Centre (NOC) in Tyson's Corner, McLean, Virginia is an essential part of our core network. The DCA2 NOC is staffed by highly experienced Systems & Network Administrators 24 hours a day, 365 days a year, and features multiple heavy-duty UPS (uninterrupted power) systems, multiple diesel generators, and AC systems. DCA2 offers both premium and value transit services.

The local network is arranged in four logical segments:

• Core - redundant Cisco 12012 GSR routers connected to the Internet and the rest of our national coast-to-coast network via numerous Gigabit Ethernet lines; running the full BGP4 protocol, thus ensuring route optimization and redundancy.
• Distribution A - redundant Catalyst 4912G master switches that ensure a fully redundant switching fabric between the core routers and the DistB distribution switches.
• Distribution B - redundant high-end Cisco Catalyst 6509 MSFC2 / Supervisor 2 master routing switches that distribute access to the physical and virtual LANs and route internal traffic.
• Access - redundantly connected Catalyst 2924XL EE switches to which all servers are connected. Each and every server gets a full 100Mb/s full duplex port to the access layer.

Our network does not use any 10Mb/s switches, or any hubs - at all. It is completely Fast Ethernet (100 Mb/s, for access) and Gigabit Ethernet (1000 Mb/s, for core and distribution) based. Both internal and external network provides multiple, redundant, paths. Each and every piece of the network is fully redundant: there is no single point of failure. The network also includes a number of multi-terbyte tape and RAID-based backup systems.

You can take a DCA2 tour at: http://nsssc.superb.net/information/dca2net-tour_new/dca2noctour01.htm