Thông số kỹ thuật
| IP and IP services features | - Routing Information Protocol Versions 1 and 2 (RIPv1 and RIPv2) - Generic routing encapsulation (GRE) and Multipoint GRE (MGRE) - Cisco Express Forwarding - Standard 802.1d Spanning Tree Protocol - Layer 2 Tunneling Protocol (L2TP) - Network Address Translation (NAT) - Dynamic Host Configuration Protocol (DHCP) server, relay, and client - Dynamic Domain Name System (DNS) - DNS Proxy - DNS Spoofing - Access control lists (ACLs) |
| ATM features (ADSL and G.SHDSL ATM models only) | - ATM Variable Bit Rate real-time (VBR-rt) - ATM Unspecified Bit Rate (UBR), Constant Bit Rate (CBR), and Variable Bit Rate non-realtime (VBR-nrt) - ATM Operations, Administration, and Maintenance (OA&M) support for F5 Continuity Check; segment and end‑to‑end loopback; and Integrated Local Management Interface (ILMI) support - TX ring adjustment - Virtual-circuit (VC) bundling - Per-VC queuing - Per-VC traffic shaping - 10 ATM virtual circuits on the 886, 887, and 888 models - 4 ATM virtual circuits on the 886VA and 887VA models - RFCs 1483 and 2684 - Point-to-Point Protocol over ATM (PPPoA) - PPP over Ethernet (PPPoE) |
| Switch features | - Auto Media Device In/Media Device Cross-Over (Medium Dependent Interface (MDI)/MDI crossover (MDX) - Eight 802.1Q VLANs - MAC filtering - Two-port 802.3af and Cisco compliant PoE - Switched Port Analyzer (SPAN) - Storm Control - Smartports |
| Security features | Secure connectivity: - SSL VPN for secure remote access - Hardware-accelerated DES, 3DES, AES 128, AES 192, and AES 256 - Public-key-infrastructure (PKI) support - 20 IPsec tunnels - Cisco Easy VPN Client and Server - NAT transparency Zone-based policy firewall: - Stateful inspection transparent firewall - Advanced application inspection and control - Secure HTTP (HTTPS), FTP, and Telnet authentication proxy - Dynamic and static port security |
| QoS features | - Low-Latency Queuing (LLQ) - Weighted Fair Queuing (WFQ) - Class-Based WFQ (CBWFQ) - Class-Based Traffic Shaping (CBTS) (on Fast Ethernet WAN ports and DSL ports in Packet Transport Mode [PTM] only) - Class-Based Traffic Policing (CBTP) - Policy-Based Routing (PBR) - Class-Based QoS MIB - Class of service (CoS)-to-differentiated services code point (DSCP) mapping |
| Management features | - Cisco Configuration Professional - Cisco Configuration Express - Cisco Configuration Engine support - Cisco AutoInstall - IP service-level agreement (SLA) - Cisco IOS Embedded Event Manager (EEM) - CiscoWorks - Cisco Security Manager - Telnet, Simple Network Management Protocol Version 3 (SNMPv3), Secure Shell (SSH) Protocol, CLI, and HTTP management - RADIUS and TACACS+ - Out-of-band management with ISDN S/T port or external modem through virtual auxiliary port - Cisco WCS for management of unified access points in models supporting WLAN |
| High-availability features | - Virtual Router Redundancy Protocol (VRRP) (RFC 2338) - Hot Standby Router Protocol (HSRP) - Multigroup HSRP (MHSRP) - Dial backup with external modem through virtual auxiliary port - Dial backup with ISDN S/T port (select DSL models only) - 3G backup (3G models only) |
| WAN Interface | G.SHDSL (ATM) |
| LAN Interfaces | 4-port 10-/100-Mbps managed switch |
