Switches Cisco Catalyst 4900 Series designed for data centers (data center) and aggregation of devices in a rack. Switches Catalyst 4900 are powerful fixed configuration devices for building a network center and interconnecting networks. Models have high throughput and high density of high-speed ports on a small chassis. Cisco Catalyst 4900 support full concurrent routing IPv4 and IPv6.
Switch line Catalyst 4900 includes models with 48-ports 1 Gigabit Ethernet (10/100/1000BASE-T) and uplinks with speed 1GbE SFP and 10GbE SFP+, and modular switch with 8-Yu built-in ports X2 10 GigabitEthernet and 2 expansion slots for modules (optionally supported modules on 20 ports GigabitEthernet, 8 ports 10GbE, 4 or 8 ports 10 Gigabit Ethernet X2). Also, expansion modules support adapters with X2 into optics at speeds 1GbE and 10GbE.
To the main features switches Cisco Catalyst 4900 can be attributed to the high switching speed (before 136 Gbps in models 4948 10G, and before 320 Gbps in the model 4900M), compact size 1RU (2RU model 4900M), Bandwidth before 250 mpps, low latency switching at L2-L4 level, uplink ports 1 Gigabit Ethernet and 10 Gigabit Ethernet, optional internal AC or DC power supplies and hot-swappable redundant cooling module 1 + 1.
For Series Catalyst 4900 there are two sets of functions image (Cisco IOS feature set):
- IP Base image - standard firmware level 3 with support RIPv1, RIPv2, static routes and a stub on EIGRP.
- Enterprise Services image - extended firmware with the addition OSPF, IS-IS, EIGRP, border Gateway Protocol (BGP), AppleTalk, and Internetwork Packet Exchange (IPX).
Specifications of switch Cisco Catalyst WS-C4948-10GE-E:
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Manufacturer:
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Cisco
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Product ID:
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WS-C4948-10GE-E
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Product Description:
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Catalyst 4948, ES Image, 48*10/100/1000+2*10GE(X2), 1 AC p/s
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Product Type:
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Layer 3 Switch
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Interfaces/Ports
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Total Number of Network Ports:
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48
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Number of Network (RJ-45) Ports:
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48
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Port/Expansion Slot Details:
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48 x Gigabit Ethernet Network
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Media & Performance
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Media Type Supported:
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Twisted Pair
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Ethernet Technology:
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Gigabit Ethernet
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Network Technology:
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10/100/1000Base-T
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I/O Expansions
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Number of Total Expansion Slots:
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2
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Expansion Slot Type:
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X2
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Network & Communication
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Layer Supported:
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4
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Management & Protocols
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Manageable:
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Yes
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Management:
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- Cisco Network Assistant
- CiscoWorks
- Cisco SmartPort macros
- CiscoView
- SNMPv1, v2, and v3 instrumentation, delivering comprehensive in-band management
- CLI-based management console to provide detailed out-of-band management
- Remote Monitoring (RMON) software agent
- Per VLAN Spanning Tree (PVST) and VLAN IDs: 4096
QoS and Traffic Management:
- Per-port QoS configuration
- Support for four queues per port
- Strict priority queuing
- IP differentiated services code point (DSCP)
- Classification and marking based on IP type of service (ToS) or DSCP
- Classification and marking based on full Layer 3 and Layer 4 headers
- Input and output policing based on Layer 3 and Layer 4 headers
- Support for 512 policers on ingress and 512 policers on egress
- Shaping and sharing output queue management
- DBL-congestion-avoidance feature
- No performance penalty for granular QoS functions
- Per-port, per-vlan QoS
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Memory
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Standard Memory:
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256 MB
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Memory Technology:
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SDRAM
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Flash Memory:
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64 MB
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Physical Characteristics
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Form Factor:
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Rack-mountable
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Height:
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1.8"
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Width:
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17.5"
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Depth:
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16"
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Weight (Approximate):
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17.20 lb
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Miscellaneous
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Additional Information:
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- Power-Supply Redundancy for Nonstop Operation
- Robust Network Security
- Switch heat dissipation: 1023 BTU/hour
- Switched Virtual Interfaces (SVIs): 2k
- Storm control
- Hardware-based IP Cisco Express Forwarding routing at 102 mpps
- Policy-based routing (PBR)
- Bandwidth aggregation up to 40 Gbps using Cisco Gigabit Ethernet EtherChannel technology
- Support for 55,000 unicast and 16000 multicast MAC addresses
Security Features:
- Hardware-based ACLs, router ACLs (RACLs), VLAN ACLs
- TACACS+ and RADIUS
- 802.1x accounting
- 802.1x authentication failure
- 802.1x Private VLAN assignment Port security
- Sticky port security
- SSHv1 and SSHv2
- VLAN Management Policy Server (VMPS) client
- Unicast MAC filtering
- Unicast port flood blocking
- Dynamic Address Resolution Protocol (ARP) inspection
- IP source guard
- Community Private VLANs
- Trunk Port Security
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