Technical specification

physics layer standard

LAN
100BASE-T,100BASE-FX,10BASE-T

WAN
ITU-T V.35,V.24/V.28（RS-232）, X.21bis, RS422/RS449,G.703,G.704,I.430

modem
ITU-T V.93, V.90, V.34bis, V.34, V.32bis, V.32,V.22bis,V.22.

Voice port
.FXS、FXO、E&M.

Network interconnection
LAN link layer protocol
Ethernet-II
Ethernet-SNAP
IEEE 802.3
IEEE802.1D
IEEE802.1p
IEEE802.1Q
IEEE802.1x

WAN link layer protocol
Frame Relay、FR
X.25
LAPB
PPP，PPPoE
HDLC
SLIP
ISDN（PRI/BRI）
LLC2
SDLC
DLSW-SSP
XoT

Network protocol
IP Service
ARP、proxy-ARP
Static domain name resolution
NAT
IP packet filtering
ICMP、IGMP
DHCP
DNS
IP Multicast
DM/SM-PIM（protocol independency multipoint broadcast protocol） DVMRP（distance vector multipoint broadcast route protocol ）


IP performance
Message compression

IP route
Static route management
Dynamic route protocol
RIP（V1/V2）
OSPF（V1/V2）
BIRGP（compatible with Cisco proprietary EIGRP）
BGP-4
DDR
Policy route :base on packet size, source address, traffic.


Transmission layer
TCP、UDP、RTP

Network security
AAA
Radius
CHAP
TACAS+

Fire wall
Access control list base on source aim, time segment, protocol.
Base on access-class mode filtrate NAT

VPN
L2TP、GRE、IPSec、MPLS

Else security function
Dynamic ARP close、ISDN calling recognition, Async Dialup Callback, route protocol authentication, digit certificate.

Network reliability
Backup center
Port backup E-backup HSRP

Service of Quality
IP QoS
Queue scheduling algorithm:FIFO、PQ、CQ、WFQ Congestion avoid policy（RED、WRED） Flow coining（RTS） RSVP

Configuration management
CLI interface
Local configuration by console
Telnet rlogin, ZMODEM telnet and download command grade protection Chinese prompt Debug information Trace Route、ping test tool
TFTP
log

SNMP V1/2/3，RMON, monitoring and management by general net management software（such as BroadDirector、OPENVIEW、CiscoWorks）. CDP, seamless integration to CiscoWorks 2000


hardware characteristic

item
7208
7204
7202

EMS memory
256M（MAX 512M）
256M（MAX 512M）
256M（MAX 512M）

Flash
32M（MAX 128M）
32M（MAX 128M）
32M（MAX 128M）

BootRom
1024K
1024K
1024K

NVRAM
512K
512K
512K

SLOT
8
4
2

Standard interface（RPU）
2 10/100/1000M Ethernet electricity interface
1个10/100M Ethernet electricity interface
1个Console port
1个AUX port

Module type
NM（network module）、EM（enganced network module）network/voice module

Packet forwarding rate
400Kpps

Externality size（mm）
440×450×156
440×450×90
440×450×90

Weight（Kg）
10
8
8

Power consumption（W）
200
140
80

Installation
Standard 19 inch plane

disperse quantity of heat
In by right ,out by left.

Work temperature/humidity
0℃～40℃；10%～85% non-condensing

Storage temperature/humidity
-20℃～65℃；5%～95% non-condensing

AC power supply
Input voltage:100～240V，
Input frequency:47～63Hz
Input current :4A/230V

DC power supply
Input voltage：-40～-56V
Input current：6A

Dependability
Double power supply redundant backup.