Cisco Catalyst
3850 Series is the next generation of enterprise-class stackable Ethernet
access and aggregation layer switches support layer 3, 1000Mbps, 24/48 ports,
POE&POE+, and is stackable, which provide full convergence between wired
and wireless on a single platform.
What Is a Layer 3 Switch?
A Layer 3 switch
is a high-performance device for network routing. Layer 3 switches actually
differ very little from routers. A Layer 3 switch can support the same routing
products as network routers do. Both inspect incoming packets and make dynamic
routing decisions based on the source and destination addresses inside. Both
types of boxes share a similar appearance.
Layer 3 switches
were conceived as a technology to improve on the performance of routers used in
large local area networks(LANs) like corporate intranets. The key difference
between Layer 3 switches and routers lies in the hardware technology used to
build the unit. The hardware inside a Layer 3 switch merges that of traditional
switches and Cisco routers,
replaceing some of a router’s software logic with hardware to offer better
performance in some situations.
Layer 3 switches
offen cost less than traditional routers. Designed for use within local
networks, a Layer 3 switch will typically not possess the WAN ports and wide
area network features a traditional router will always have.
Cisco Catalyst 3850 SFP Fiber Switches,
Highlights
- Built on
Cisco UADP ASIC, support full programmability for Cisco Enterprise Network
Architecture
- Support
for a wide range of pluggable transceiver modules for longer physical
distance and enhanced physical security
- Integrated
wireless LAN controller functionality in Converged Access mode
- Cisco
StackWise-480 and
Cisco StackPower technologies for resiliency
- Native
Flexible NetFlow (FnF) on all ports for extensive application visibility
- Native
Cisco TrustSec support for user segmentation and end user/device/location
security
- Support
for Cisco Unified Access with ISE and Cisco Prime
- SDN
OpenFlow and OnePK
ready with support for Cisco Application Policy Infrastructure Controller
Enterprise Module (APIC-EM) in a future software release
Catalyst 3850 SFP Fiber Switches, Primary
Features
- 12 or 24
1G fiber data ports at line rate on every port
- Two
optional uplink modules with 4 x Gigabit Ethernet or 2 x 10 Gigabit
Ethernet ports
- Cisco
StackWise-480 technology
to provide scalability and resiliency with 480 Gbps of stack throughput
and full stackability with other Cisco Catalyst 3850 fixed GE access
switches
- Cisco StackPower
technology to provide power stacking among stack members for power
redundancy
- Dual
redundant power supplies (AC and DC) and three modular fans, providing higher
redundancy
- Software
support for IPv4 and IPv6 routing, multicast routing, modular QoS, Flexible
NetFlow and advanced security features
- Single,
consistent Cisco IOS XE Software image with IP Base and IP Services,
providing an easy upgrade path for software features
- Enhanced
limited lifetime warranty (E-LLW) with next business day advance hardware
replacement and 90-day access to Cisco Technical Assistance Center
- Integrated
wireless LAN controller capability with up to 20 Gbps of wireless capacity
per switch or stack and up to 50 access points and 2000 wireless
clients on each switch or stack
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