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Reference : Cisco and Networking : Cisco : 4900 : Catalyst 4912G




Catalyst 4912G

Standard Network Protocols

  • Gigabit Ethernet: IEEE 802.3z, IEEE 802.3x

  • 1000Base-X (GBIC)

    1000Base-SX

    1000Base-LX/LH

    1000Base-ZX

  • VLAN trunking tagging: IEEE 802.1Q

  • Spanning Tree Protocol: IEEE 802.1D1000Base-X (GBIC)

 

Network Management

  • CiscoWorks 2000 Network Management Suite, Resource Manager Essentials includes:

    Inventory manager

    Change audit

    Device configuration manager

    Software image manager

    Availability manager

    Syslog analyzer

    Cisco management connection

  • CiscoWorks 2000 Network Management Suite, CiscoWorks for Switched Internetworks (CWSI) campus includes:

    Network topology discovery and display services

    VLAN provisioning and logical display representation

    Traffic monitoring and performance assessment

    End-station tracking with search utilities

    ATM and LANE service configuration and performance monitoring

    CiscoView graphical device management

    Network topology integrity checking

  • Cisco Discovery Protocol

  • Cisco Virtual Trunking Protocol (VTP)

  • Simple Network Management Protocol (SNMP) agent V.1 (RFCs 1155-1157)

  • SNMPV.2c

  • Cisco workgroup Management Information Base (MIB)

  • Ethernet MIB (RFC 1643)

  • Ethernet repeater MIB (RFC 1516)

  • SNMP MIB II (RFC 1213)

  • Remote Monitoring (RMON) (RFC 1757)

  • Remote Monitoring (RMON II) (RFC 2021)

  • Interface table (RFC 1573)

  • Bridge MIB (RFC 1493)

  • SMT 7.3 (RFC 1285)

  • Switched port analyzer (SPAN)

  • Enhanced switched port analyzer (ESPAN)

  • Port snooping and connection steering

  • Text-based command-line interface based on the familiar Cisco Catalyst 5000 interface

  • Standard Cisco IOS security capabilities: passwords and TACACS+

  • Telnet, Trivial File Transfer Protocol (TFTP), and BOOTP for management access

 

EtherChannel

  • Gigabit EtherChannel: all 1000 Mbps ports

  • PAgP: Yes

 

Memory Specifications

  • Buffering: 8 MB Shared

  • NVRAM: 512 KB

  • FLASH: 12 MB

  • SDRAM: 64 MB

 

Switching Specifications

  • MAC addresses: 16,000

  • Virtual LANs (VLANs): 1,024

  • Fabric: store and forward

  • Queues: dual queuing

 

Input Current

2.0A max. @ 100 VAC 60 Hz

1.0A max. @ 200 VAC 50 Hz

 

KVA Rating

0.20 KVA

 

Output power

120 watts per power supply

 

Heat dissipation

189 W (640 BTUs per hour)

 

Power factor correction

yes

 

Dimensions (H x W x D)

2.75 x 17.5 x 15 in. (6.99 x 44.45 x 38.10 cm)

1.5 rack units (RU) high

 

Maximum weight

13.5 lb (6.12 kg)

 

Mounting

19 in. rack-compatible (rack hardware included)

 

Operating temperature

32 to 104°F (0 to 40°C)

 

Storage temperature

-40 to 167°F (-40 to 75°C)

 

Relative humidity

10% to 90%, noncondensing

 

Operating altitude

-196.85 to 13,123.36 ft (-60 to 4000 m)

 

Regulatory Compliance

CE Marking

UL 1950

CSA-C22.2 no 950

EN 60950, EN 609825

IEC 825

IEC 950

TS001

AS/NZ 3260

FCC 15J Class A, ICES-003 Class A, EN55022 Class A, CISPR22 Class A, AS/NZ 3584 Class A, VCCI Class A with UTP cables

EN 55022 Class B, CISPR22 Class B, AS/NZ 3548 Class B, VCCI Class B and BSIM Class B with FTP (foil twisted pair) cables

 
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