Description
The Catalyst 2948G-L3 provides an aggregate throughput of more than 10 Mpps for Layer 3 switching. These data rates apply not only to IP and IPX traffic but also to IP multicast and bridged traffic and are a result of using high-speed application-specific integrated circuit (ASIC) technology on each port to perform true Layer 3 switching. The Catalyst 2948G-L3 supports a high-performance architecture with 22 Gbps bandwidth. The switch fabric is capable of supporting all 48 10/100 ports and two Gigabit uplinks simultaneously at wire speed.
The Catalyst 2948G-L3 is housed in a 1.5 rack unit (RU) chassis and can be provisioned with an optional external redundant power supply. It supports a 22 Gbps shared-memory. fully non-blocking switch fabric. high- performance RISC processor that provides the routing intelligence and individual port-based ASICs for the Layer 3 switching. The Catalyst 2948G-L3 uses Cisco Express Forwarding (CEF). which has been developed for the Cisco 12000 series gigabit switch router (GSR). the Catalyst 8500. and the Cisco 7500. This technology provides Layer 3 switching based on a topology map of the entire network that is distributed to each port-based ASIC. allowing it to make autonomous switching decisions without the involvement of a centralized CPU.
The Catalyst 2948G-L3 is housed in a 1.5 rack unit (RU) chassis and can be provisioned with an optional external redundant power supply. It supports a 22 Gbps shared-memory. fully non-blocking switch fabric. high- performance RISC processor that provides the routing intelligence and individual port-based ASICs for the Layer 3 switching. The Catalyst 2948G-L3 uses Cisco Express Forwarding (CEF). which has been developed for the Cisco 12000 series gigabit switch router (GSR). the Catalyst 8500. and the Cisco 7500. This technology provides Layer 3 switching based on a topology map of the entire network that is distributed to each port-based ASIC. allowing it to make autonomous switching decisions without the involvement of a centralized CPU.
WS-C2948G-L3 Product Overview
- Total Number of Network Ports: 48
- Number of Network (RJ-45) Ports: 48
- Port/Expansion Slot Details: 48 x Fast Ethernet Network
- Port/Expansion Slot Details: 2 x Gigabit Ethernet Expansion Slot
Interfaces/Ports
- Media Type Supported: Twisted Pair
- Twisted Pair Cable Standard: Category 5
- Ethernet Technology: Fast Ethernet
- Network Technology: 10Base-T
- Network Technology: 100Base-TX
Media & Performance
- Number of Total Expansion Slots: 2
- Expansion Slot Type: GBIC
- Number of GBIC Slots: 2
I/O Expansions
- Manageable: Yes
- Management: Management:
- SNMP Management Information Base (MIB) II
Management Capabilities: - CiscoWorks 2000
- CWSI
- CiscoView
- CDP
- VTP
- Enhanced SPAN
- SNMP
- Telnet Client
- BOOTP
- TFTP
Management & Protocols
- Standard Memory: 64 MB
- Flash Memory: 16 MB
Memory
- Input Voltage: 110 V AC
- Input Voltage: 220 V AC
- Power Source: Power Supply
- Redundant Power Supply: Yes
Power Description
- Height: 2.7'
- Width: 17.1'
- Depth: 18.0'
- Weight (Approximate): 18.00 lb
Physical Characteristics
- Additional Information: Item Included:
- Cisco IOS cat2948g-L3 BASIC SOFTWARE FOR L3 CATALYST 2948G (SC29Z-12.0.14W)
- Full Duplex Capabilities: All ports
- VLAN Maximum: 1024
- FEC: Yes
- ISL: Yes - All Ports
- 802.1Q: Yes - All Ports
- Power supply output: 175W; 820 BTU/hour
Route Entries: - 12.000 minimum
- 24.000 maximum
- Certifications & Standards: Standards:
- IEEE 802.3x full duplex on 10BaseT. 100BaseTX. and 1000BaseX ports
- IEEE 802.1D Spanning-Tree Protocol
- IEEE 802.1Q VLAN
- IEEE 802.3z 1000BaseX specification
- IEEE 802.3u 100BaseTX specification
- IEEE 802.3 10BaseT specification
- 1000BaseX (GBIC)
- 1000BaseSX
- 1000BaseLX/LH
- 1000BaseZX
Safety Certifications: - UL 1950
- CSA 22.2 No. 950
- EN 60950
- IEC 950
- AS/NZS 3260. TS001
- CE
Electromagnetic Emissions Certifications: - FCC Part 15 Class A
- EN 55022B Class A (CISPR 22 Class A)
- VCCI Class A
- AS/NZS 3548 Class A
- BCIQ
- CE Marking
- Y2K compliant
Miscellaneous
- Limited Warranty: 90 Day