| CISCO2921-SEC/K9 Specification | |
| Manufacturer | Cisco Systems, Inc | 
| Manufacturer Part Number | CISCO2921-SEC/K9 | 
| Product Type | Router | 
| Form Factor | External - modular - 2U | 
| Dimensions (WxDxH) | 47 cm x 43.8 cm x 8.9 cm | 
| Weight | 13.2 kg | 
| DRAM Memory | 512 MB (installed) / 2 GB (max) | 
| Flash Memory | 256 MB (installed) / 8 GB (max) | 
| Routing Protocol | OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing | 
| Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet | 
| Network / Transport Protocol | IPSec | 
| Remote Management Protocol | SNMP, RMON | 
| Features | Firewall protection, VPN support, MPLS support, Syslog support, content filtering, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Dynamic Multipoint VPN (DMVPN) | 
| Compliant Standards | IEEE 802.1Q, IEEE 802.3af, IEEE 802.3ah, IEEE 802.1ah, IEEE 802.1ag | 
| Power | AC 120/230 V ( 50/60 Hz ) | 
 
                     
                
                 
                 
                        






 
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                    