1. 
? (??):Cisco 1921/K9
2. ?:??,?
??,?
??
3. ?? ? ?:??
4. ?:?? Cisco 1900
?? WAN
? 2?10/100/1000Base-T
? LAN
? 9
SFP
??
? No
? EHWIC
? 2 x EHWIC, 1 x DEHWIC
??
??
-
?
? NM/SM -
?? DSP (PVDM)
? -
WLAN
?? No
IPSec VPN
Highly secure collaborative communications with Group Encrypted Transport VPN, Dynamic Multipoint VPN, or Enhanced Easy VPN
Stateful Firewall; Onboard hardware VPN acceleration (Digital Encryption Standard [DES], Triple DES [3DES], and Advanced Encryption Standard [AES]); Intrusion Prevention; Content Filtering
? -
?? DRAM
??/ max 512 MB/ 512 MB
?? Flash
??/ m?? 256 MB/ 256 MB
USB
? 1 x USB
?, mm 44.4 x 342.9 x 292.1 mm, Rack height 1U
? Routing Protocol: OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, static IP routing, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR), MPLS
? ? ? ? http://www.cisco.com/en/US/prod/collateral/voicesw/ps6789/ps7290/ps10589/data_sheet_c78-598389.html5. ?:700 (
?? ??
??
?)
6. :??
7. ??:??
8. ?? :?:0895913790
? ? ??
9. ? :??,?
? ??
? ?
?
10. ??
