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QuickSpecs
Overview
the consistent time
Info center: provides a central information center for system and network information; aggregates all logs, traps, and
debugging information generated by the system and maintains them in order of severity; outputs the network information to
multiple channels based on user-defined rules
Management interface control: provides management access through modem port and terminal interface; provides access
through terminal interface, telnet, or SSH
Network Quality Analyzer (NQA): analyzes network performance and service quality by sending test packets, and provides
network performance and service quality parameters such as jitter, TCP, or FTP connection delays; allows network manager to
determine overall network performance and diagnose and locate network congestion points or failures
Connectivity
High-density port connectivity: provides up to 4 interface module slots and up to 18 Fast Ethernet ports
Multiple WAN interfaces: provide a traditional link with E1, T1, ADSL, ADSL2, ADSL2+, G.SHDSL, ATM, Serial, and ISDN/AM
backup; provide high-density Ethernet access with WAN Fast Ethernet/Gigabit Ethernet and LAN 4- and 9-port Fast Ethernet;
provide mobility access with 802.11b/g/n Wi-Fi and 3G
Packet storm protection: protects against broadcast, multicast, or unicast storms with user-defined thresholds
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
Flexible port selection: provides a combination of fiber and copper interface modules, 100/1000BASE-X auto-speed selection,
and 10/100/1000BASE-T auto-speed detection plus auto duplex and MDI/MDI-X
3G access support: provides 3G wireless access for primary or backup connectivity via a 3G SIC module certified on various
cellular networks; optional carrier 3G USB modems available
Performance
Powerful encryption capacity: includes embedded hardware encryption accelerator to improve encryption performance
Flexible chassis selection: offers a choice of three routers, meeting different requirements on enterprise branches
Excellent forwarding performance: provides forwarding performance up to 180 Kpps; meets current and future bandwidth-
intensive application demands of enterprise businesses
Resiliency and high availability
Backup Center: acts as a part of the management and backup function to provide backup for device interfaces; delivers
reliability by switching traffic over to a backup interface when the primary one fails
Virtual Router Redundancy Protocol (VRRP): allows groups of two routers to dynamically back each other up to create highly
available routed environments; supports VRRP load balancing
Layer 2 switching
Spanning Tree Protocol (STP)
fully supports standard IEEE 802.1D STP, IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) for faster convergence, and IEEE
802.1s Multiple Spanning Tree Protocol (MSTP)
Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) protocol snooping: effectively control
and manage the flooding of multicast packets in a Layer 2 network
Port mirroring: duplicates port traffic (ingress and egress) to a local or remote monitoring port
VLANs: support up to 4,094 ports or IEEE 802.1Q-based VLANs
sFlow: allows traffic sampling
Layer 3 services
DA - 13813 North America — Version 13 — November 22, 2013
HP MSR20 Series
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