Cisco WS-X4306-GB= - Switching Module Switch Veri Sayfası - Sayfa 3
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Sayfayı Yazdır48-Port 1000-BASE-LX Gigabit Ethernet Line Card
(WS-X4448-GB-LX)
The Cisco Catalyst 48-port 1000BASE-LX Gigabit Ethernet line
card provides 48 ports of high-performance 1000BASE-LX
Gigabit Ethernet connectivity allowing service providers to run
point-to-point Gigabit Ethernet links over single-mode fiber within
the access/distribution layer of their metropolitan Ethernet
network. This line card leverages, and includes, 48 1000BASE-LX
small form-factor pluggable (SFP) optics for a high density solution.
The 48 ports can burst up to Gigabit Ethernet line rate and share
12 Gbps of capacity (6 Gbps full-duplex) into the switching fabric.
The amount of oversubscription can be controlled by controlling
the number of ports enabled. All ports use the standard IEEE
802.1x flow control (PAUSE frame) mechanism to control Gigabit
Ethernet host traffic.
Key Benefits
High Performance and Cost-Effective Gigabit Ethernet
Connectivity
Delivering advanced switching solutions that scale bandwidth as
you add ports, the Cisco Catalyst 4000/4500 Series solution is
powered by leading-edge ASIC technology that offers
non-blocking, Cisco Express Forwarding (CEF) based Layer 2/3/4
switching at 48 Mpps and 64 Gbps with intelligent services.
Supporting a very low latency, centralized, shared-memory
switching fabric architecture, the Cisco Cisco Catalyst 4000/4500
Series enables high performance, Gigabit Ethernet server
connectivity and Gigabit Ethernet to the desktop. By blending
advanced engineering and advances in manufacturing, the Cisco
Catalyst 4000/4500 Series delivers powerful Gigabit Ethernet
switching solutions at a very cost-effective price point.
Functionally Transparent gigabit Ethernet Line Cards
The Cisco Catalyst 4000/4500 Series architecture enables
customers to easily upgrade all Gigabit Ethernet line cards on
their Cisco Catalyst 4000 systems to higher-layer switching
functionality by simply adding a new Supervisor Engine. This
enables customers to easily upgrade their networks to deploy
new higher-layer functionality on their Gigabit Ethernet
switching solutions without replacing existing Gigabit Ethernet
line cards.
Scalable and Reliable Gigabit Ethernet Solutions
The modular chassis flexibility, variety of Gigabit Ethernet
modules, redundant Supervisor Engine IV (Cisco Catalyst
4507R only), integrated and redundant inline power supplies
and software redundancy features ensure that the Cisco Catalyst
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4000/4500 Series meets customers' needs by delivering reliable,
fault-tolerant, and scalable Gigabit switching solutions. Cisco
Gigabit EtherChannel
EtherChannel technology pioneered by Cisco and extensively
deployed in networks worldwide, and support for IEEE 802.3ad
(Link Aggregation Control Protocol), enables customers to
deploy multigigabit links in server farms that scale up to 8 Gbps
ports for each Gigabit EtherChannel. Port redundancy with
UplinkFast and PortFast, Spanning Tree Algorithm
enhancements, and link redundancy with Gigabit EtherChannel,
across Gigabit links, ensures reliable and fault-tolerant
operations of critical applications.
Gigabit Ethernet Solutions with Intelligent Services for
Control for Converged Data, Voice and Video Networks
The Cisco Catalyst 4000/4500 Series Gigabit Ethernet solutions
deliver intelligent services, such as quality of services,
security, availability, multicast, and manageability. These
intelligent services coupled with predictable high performance
Gigabit switching improve network control and efficiency and
enable the deployment of Internet business solutions for
business productivity gains. Consistent intelligent services
across the Cisco Catalyst switching portfolio, that includes
the Cisco Catalyst 2950, 3550, 4500, and 6500 Series, enables
customers to deploy scalable and flexible Gigabit Ethernet
solutions with seamlessly interoperability and simplified
management.
Features
• Support for 32,000 MAC addresses dynamically allocated
between active ports
• Hardware-based support for 4000 virtual LANs (VLANs)
• 64-Gbps capacity and 48-Mpps CEF-based integrated Layer
2/3/4 performance
• Hot swap capability on all Gigabit Ethernet line cards
• Support for up to 240 ports of 10/100/1000 RJ-45 in one
Cisco Catalyst 4000/4500 chassis
• Gigabit Ethernet modules in the Cisco Catalyst 6500 Series
are based on industry-standards IEEE 802.3z and IEEE
802.3ab, ensuring vendor interoperability and long-term
investment protection
• All Gigabit Ethernet ports can be 1000BASE-SX,
1000BASE-LX/LH, 1000BASE-ZX, or CWDM, by using
flexible, hot-swappable, GBIC modules
• GBIC-based Gigabit Ethernet modules enable data
transmission up to 100 km, supporting fiber-optic SC interfaces
for both multimode and single-mode connectivity
Cisco Systems, Inc.
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technology, which is based on proven