| Item | AR2220 | AR2240 |
|---|
| Hardware |
| Forwarding capacity (64 Byte) | 1 Mpps | 2 Mpps (With SRU40)
3.5 Mpps (With SRU80) |
| WAN speed with services | 400 Mbps | 600 Mbps (With SRU40)
1800 Mbps (With SRU80) |
| Device switching capacity | 32 Gbps | 80 Gbps |
| Slot switching bandwidth | SIC & WSIC slots 2 Gbps
XSIC & EXSIC slots 20 Gbps |
| Fixed WAN ports | 3 * GE (1 * combo port) | 3 * GE (2 * combo ports) |
| SIC slots | 4 | 4 |
| WSIC slots (default/max**) | 2/4 | 2/4 |
| XSIC slots (default/max**) | 0/2 | 2/4 |
| EXSIC slot (shared with XSIC slots) | 0 | 1 |
| DSP slots | 1 | 3 |
| USB 2.0 ports | 2 | 2 |
| Mini-USB ports | 1 | 1 |
| Serial auxiliary/console port | 1 | 1 |
| Memory | 2 GB | 2 GB |
| Flash (default/max) | 2 GB/4 GB | 2 GB/4 GB |
| Max. power | 150 W | 350 W(Single Power Module)/700 W(Dual Power Module) |
| AC power | 100 V-240 V | 100 V-240 V |
| Frequency | 50 Hz/60 Hz | 50 Hz/60 Hz |
| DC power | -48 V~-60 V | -48 V~-60 V |
| Dimensions (height x width x depth) | 44.5mm x 442 mm x 420 mm | 88.1mm x 442 mm x 470 mm |
| Weight | 4.95 KG (without Power Module and Interface Card) | 8.85 KG (without Power Module and Interface Card) |
| Ambient temperature | 0°C-40°C | 0°C-40°C |
| Relative humidity | 5-90% (non-condensing) | 5-90% (non-condensing) |
| Software |
| Basic feature | DHCP server/client, PPPoE server/client, PPPoA client, PPPoEoA client, NAT, Sub interface management |
| Voice | RTP, SIP, SIP AG, IP PBX/TDM PBX, FXO/FXS, VoIP/conference call |
| 3G | CDMA 2000 EV-DO Rev A, WCDMA, individual 3G uplink/backup link |
| LAN | IEEE 802.1P, IEEE 802.1Q, IEEE 802.3, VLAN management, MAC address management, MSTP |
| IPv4 unicast routing | Routing policy, static route, RIP, OSPF, IS-IS, BGP |
| Multicast | IGMP V1/V2/V3, IGMP-Snooping V1/V2/V3, PIM SM, PIM DM, MSDP |
| MPLS | LDP, MPLS L3 VPN, static LSP, dynamic LSP |
| VPN | IPSec VPN, GRE VPN, DSVPN, SSL VPN, L2TP VPN |
| QoS | Diffserv mode, MPLS QoS, priority mapping, traffic policing (CAR), traffic shaping, congestion avoidance (based on IP precedence/DSCP WRED), congestion management (LAN interface: SP/WRR/SP+WRR; WAN interface: PQ/CBWFQ), MQC (traffic classifier, traffic behavior, and traffic policy), HQoS, FR QoS |
| Security | ACL, firewall, 802.1x authentication, MAC address authentication, Web authentication, AAA authentication, RADIUS authentication, HWTACACS authentication, broadcast storm suppression, ARP security, ICMP attack defense, URPF, IP Source Guard, DHCP snooping, CPCAR, blacklist, IP source tracing |
| Management and maintenance | Upgrade management, device management, GTL, SNMP(v1/v2c/v3), NTP, CWMP, Auto-Config, deployment using USB disk, NetConf, CLI |
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