The HP A-MSR20 Series features a modular design that delivers unmatched flexibility for small branch offices and small to medium-sized businesses, while reducing complexity, simplifying management, and increasing control. The A-MSR20 routers provide a full-featured, resilient routing platform, including IPv6 and MPLS, up to 180 Kpps forwarding capacity, and 100 Mbps encryption. They offer lasting investment protection, and help reduce capital and operating expenses. These routers enable an agile, flexible network infrastructure that offers the ability to quickly adapt to changing business requirements, while delivering integrated, concurrent services on a single, easy-to-manage platform.Quality of Service (QoS) Traffic policing: supports Committed Access Rate (CAR) and line rate Management Industry-standard CLI with a hierarchical structure: reduces training time and expenses, and increases productivity in multivendor installations Connectivity 3G access support: allows use of SIC 3G module for high reliability; supports popular USB 3G modem Performance Powerful encryption capacity: includes embedded hardware encryption accelerator to improve encryption performance Resiliency and high availability Virtual Router Redundancy Protocol (VRRP): allows groups of two routers to dynamically back each other up to create highly available routed environments Layer 2 switching Spanning Tree: fully supports standard IEEE 802.1D Spanning Tree Protocol, IEEE 802.1w Rapid Spanning Tree Protocol for faster convergence, and IEEE 802.1s Multiple Spanning Tree Protocol 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
