The HP HSR6600 Series are high-performance services WAN routers, ideal for small-to-medium campus WAN edge and aggregation, and high-end branch, deployments. These routers are built with a compact multi-core centralized processing architecture that delivers, in a 2 RU form factor, robust routing, security, full layer 2 switching, and modular WAN and LAN interface options, all integrated in a single fast, powerful routing platform.
In addition, these routers feature robust carrier class reliability capabilities to minimize disruption from network or system failures.

Features
Connectivity
Multiple WAN interfaces: support Fast Ethernet/Gigabit Ethernet/10 GbE ports, OC3~OC48 POS/CPOS, and ATM ports
Flexible port selection: provides a combination of fiber/copper interface modules, 100/1000BASE-X auto-speed selection, and 10/100/1000BASE-T auto-speed detection plus auto duplex and MDI/MDI-X; is speed adaptable between 155 M POS/622 M POS/Gigabit Ethernet
Loopback: supports internal loopback testing for maintenance purposes and an increase in availability; loopback detection protects against incorrect cabling or network configurations and can be enabled on a per-port or per-VLAN basis for added flexibility

Performance
High-performance platform: provides up to 15 Mpps forwarding performance

Layer 3 routing
Static IPv4 routing: provides simple, manually configured IPv4 routing
Routing Information Protocol (RIP): uses a distance vector algorithm with UDP packets for route determination; supports RIPv1 and RIPv2 routing; includes loop protection
Open Shortest Path First (OSPF): Interior Gateway Protocol (IGP) uses link-state protocol for faster convergence; supports ECMP, NSSA, and MD5 authentication for increased security and graceful restart for faster failure recovery
Border Gateway Protocol 4 (BGP-4): Exterior Gateway Protocol (EGP) with path vector protocol uses TCP for enhanced reliability for the route discovery process, reduces bandwidth consumption by advertising only incremental updates, and supports extensive policies for increased flexibility, as well as scales to very large networks
Intermediate system to intermediate system (IS-IS): Interior Gateway Protocol (IGP) uses path vector protocol, which is defined by the ISO organization for IS-IS routing and extended by IETF RFC 1195 to operate in both TCP/IP and the OSI reference model (Integrated IS-IS)

Layer 3 services
Address Resolution Protocol (ARP): determines the MAC address of another IP host in the same subnet; supports static ARPs; gratuitous ARP allows detection of duplicate IP addresses; proxy ARP allows normal ARP operation between subnets or when subnets are separated by a Layer 2 network
User Datagram Protocol (UDP) helper: redirects UDP broadcasts to specific IP subnets to prevent server spoofing
Domain Name System (DNS): provides a distributed database that translates domain names and IP addresses, which simplifies network design; supports client and server
Dynamic Host Configuration Protocol (DHCP): simplifies the management of large IP networks