| 产品型号 | CISCO2921/K9 |
| 设备类型 | 集成多业务路由器 |
| 物理尺寸 | 3.5 x 17.25 x 18.5 in. (88.9 x 438.2 x 469.9 mm) |
| 外形特征 | External - modular - 2U |
| 内存 |
| RAM | 512 MB (installed) / 2 GB (max) |
| Flash Memory | 256 MB (installed) / 8 GB (max) |
| 网络 |
| 数据链路协议 | Ethernet, Fast Ethernet, Gigabit Ethernet |
| 网络传输协议 | L2TP, IPSec |
| 路由协议 | OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing |
| 远程管理 | SNMP, RMON |
| 特性 | MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED) |
| 模块化插槽 | 4 ( 4 ) x HWIC ¦ 3 ( 3 ) x PVDM ¦ 2 ( 1 ) x CompactFlash Card ¦ 1 ( 1 ) x SFP (mini-GBIC) ¦ 1 ( 1 ) x expansion slot |
| 接口 | 3 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 ¦ 1 x management - console - RJ-45 ¦ 1 x management - console - mini-USB Type B ¦ 1 x serial - auxiliary - RJ-45 ¦ 2 x USB - 4 pin USB Type A |
| 板载以太网端口 | 3个10/100/1000 |
| 电气规格 |
| 额定电压(V) | AC 120/230 V ( 50/60 Hz ) |
| 电源 | 内置 |
| 其他 |
| 包装 | 思科原厂未开封包装（箱子） |
| 保修 | 一年思科原厂保修 |
