Datasheet

Technical Specifications for the Catalyst 2948G
Standard Network Protocols
• Ethernet: IEEE 802.3, 10BaseT
• Fast Ethernet: IEEE 802.3u, 100BaseTX
• Gigabit Ethernet: IEEE 802.3z, IEEE 802.3x
• 1000BaseX (GBIC)
– 1000BaseSX
– 1000BaseLX/LH
• VLAN Trunking/Tagging: IEEE 802.1Q
• Spanning-Tree Protocol: IEEE 802.1D
Network Management
• CiscoWorks2000 Network Management Suite,
Resource Manager Essentials includes:
– Inventory Manager
– Change audit
– Device Configuration Manager
– Software Image Manager
– Availability Manager
– Syslog Analyzer
– Cisco Management Connection
• CiscoWorks2000 Network Management Suite, 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’s Virtual Trunking Protocol (VTP)
• Simple Network Management Protocol (SNMP) agent v1
(RFCs 1155-1157)
• SNMPv2c
• Cisco workgroup Management Information Base (MIB)
• Ethernet MIB (RFC 1643)
• Ethernet repeater MIB (RFC 1516)
• SNMP MIB II (RFC 1213)
• RMON (RFC 1757)
• RMON II (RFC 2021)
• Interface table (RFC 1573)
• Bridge MIB (RFC 1493)
• Station Management (SMT) 7.3 (RFC 1285)
• Switched Port Analyzer (SPAN)
• Enhanced Switched Port Analyzer (EnhancedSPAN)
• Port snooping and connection steering
• Text-based command-line interface based on the familiar
Catalyst 5000 Series interface
• Standard Cisco IOS
®
security capabilities: passwords
and TACACS+
• Telnet, Trivial File Transfer Protocol (TFTP), BOOTP
for management access
EtherChannel®
• Fast EtherChannel: All 10/100 mbps ports
• Gigabit EtherChannel: All 1000 mbps ports
• PAgP: Yes
Y2K
• Y2K compliant: 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
Indicators and Interfaces
Catalyst 2948G Switch
• System status: Green (operational)/Red (faulty)
• Console (RJ-45 female)
• 10BaseT Management (RJ-45 female) data terminal equipment
(DTE): Green (good)/ orange (disabled)/off (not connected)
• 48-port 10/100Mbps Fast Ethernet autosensing, autonegotiating
(RJ-45 female)
– Status: Green (operational)/Red (faulty)