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MCT provides continuous operation and simplified network architecture. With MCT, all nodes are active and forwarding Layer 2/3 traffic. MCT simplifies network design, delivers full use of the network capacity, and provides high resiliency with instantaneous failover of links or nodes. MCT is supported on Brocade RX-4, RX-8, and RX-16 chassis.
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International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
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This chapter describes how to configure Spanning Tree Protocol (STP) on Cisco Catalyst 3550 switches. It discusses the different STP modes that can be used, including PVST+ and rapid PVST+. It also describes the basic concepts of STP including root switches, root ports, and the different port states such as blocking, listening, learning, and forwarding. Additionally, it covers understanding bridge IDs, switch priorities, and extended system IDs.
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The document describes a non-managed Fast Ethernet fiber converter called the FMC-10/100. It converts between 10/100Base-TX and 100Base-FX and supports auto-negotiation and MDI/MDIX. It has LED indicators for link, speed and duplex status and supports VLAN tagging, Jumbo frames, and flow control.
GLC-LH-SMD Datasheet
The Cisco GLC-LH-SMD 1000BASE-LX/LH SFP can operate on both multimode and single-mode fibers. It uses 1300-nm wavelength and supports distances up to 10 km on single-mode fiber and 550 m on multimode fiber. The SFP has dual LC connectors, extended temperature support, and digital optical monitoring.
Shenzhen powerlink electronic technology fiber media converter
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This document describes the design and simulation of a hybrid full adder circuit for high-speed VLSI applications. Full adders are important components used in arithmetic logic units, floating point units, and address generation. The author first reviews existing full adder designs based on static CMOS, transmission gate, and dynamic logic styles. Then, a previously proposed hybrid CMOS full adder using both transmission gates and CMOS is described. To improve speed, the author proposes a modified full adder design using only 14 transistors instead of 16. Both the existing and proposed designs are simulated in Cadence Virtuoso at 180nm and 90nm technology nodes. Simulation results show the proposed design has lower power consumption and propagation delay compared to the
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This document discusses the requirements for different cabling systems. 100BASE-T and 100BASE-TX only require two wire pairs for transmission and reception, while 1000BASE-T requires all four pairs. While it is possible but non-standard to run two connections over Category 5 cable using the extra pairs with 10BASE-T and 100BASE-TX, 1000BASE-T needs all four pairs to operate so this is not possible with that higher speed cabling system.
Qfx3500
The Juniper Networks QFX3500 Switch is a 1U, high-performance switch with 48 SFP+ ports and 4 QSFP+ ports. It delivers Layer 2 and Layer 3 connectivity for demanding data center environments. It can operate as an FCoE Transit Switch, connecting FCoE servers to a Fibre Channel storage area network, or as an FCoE-FC Gateway to integrate existing Fibre Channel networks without disruption. The QFX3500 provides wire-speed switching with low latency suitable for applications such as high-performance computing and cloud environments.
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Configuracion
This chapter describes how to configure Spanning Tree Protocol (STP) on Cisco Catalyst 3550 switches. It discusses the different STP modes that can be used, including PVST+ and rapid PVST+. It also describes the basic concepts of STP including root switches, root ports, and the different port states such as blocking, listening, learning, and forwarding. Additionally, it covers understanding bridge IDs, switch priorities, and extended system IDs.
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Shenzhen powerlink electronic technology fiber media converter
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A Simulation Based Analysis of Lowering Dynamic Power in a CMOS Inverter
With the increase in demand of high fidelity
portable devices, there is more and more emphasis laying
down on the development of low power and high performance
systems. In the next generation processors, the low power
design has to be incorporated into fundamental computation
units, such as adder. CMOS circuit design plays a crucial role
in designing of these computation units (like adder and
multiplier) so if there is any optimal way to reduce the power
dissipation in CMOS circuits then it will directly lower down
the power dissipation of other circuits and logic gates as well.
In this paper we have studied and analyzed different
techniques to reduce the dynamic power of CMOS circuit
with the help of performing simulation on some significant
factors (i.e device characteristics) of respective circuitry
designs by using Cadence-Virtuoso tool.
Xu Shao Ofc2010
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2. An SFP-10G-SR module cannot be interconnected with an SFP GLC-SX-MM module because the SFP-10G-SR only operates at 10Gbps while the GLC-SX-MM only operates at 1Gbps.
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IJSRED-V2I5P39
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The document describes a proposed 9T SRAM cell design with the following key features:
1. It uses a combination of a standard inverter and a single-ended Schmitt trigger inverter to provide high read stability.
2. Transmission gates are used instead of single-pass gates to reduce unnecessary switching during hold mode.
3. A negative assist technique alters the trip voltage of the Schmitt trigger inverter to improve write-1 ability.
4. Multi-threshold CMOS techniques are adopted to reduce leakage power in the proposed 9T SRAM cell.
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HighGig Market Overview 2013
HighGig Market Overview 2013
SAKURA Internet Research Center.
Senior Researcher / Naoto MATSUMOTO
Infiniband DAY [06] Business Conference for Enterprise/Web Service
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- MPLS labels are assigned and distributed by the Label Distribution Protocol (LDP).
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10 fn s26
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10 fn s26
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- LTE network architecture and how it impacts transport network requirements, including the need for multiservice capability, low cost per bit transport, and support for a transition to packet-based networks.
- Key transport network requirements created by LTE like powerful OAM, fast protection switching, strong QoS support, security, and interoperability with the packet core.
- How MPLS-TP can fulfill these requirements through features like VPN support, bearer provisioning across interfaces, coordinated tunnel setup, comprehensive OAM tools, and protection switching capabilities.
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A Simulation Based Analysis of Lowering Dynamic Power in a CMOS Inverter
With the increase in demand of high fidelity
portable devices, there is more and more emphasis laying
down on the development of low power and high performance
systems. In the next generation processors, the low power
design has to be incorporated into fundamental computation
units, such as adder. CMOS circuit design plays a crucial role
in designing of these computation units (like adder and
multiplier) so if there is any optimal way to reduce the power
dissipation in CMOS circuits then it will directly lower down
the power dissipation of other circuits and logic gates as well.
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techniques to reduce the dynamic power of CMOS circuit
with the help of performing simulation on some significant
factors (i.e device characteristics) of respective circuitry
designs by using Cadence-Virtuoso tool.
Xu Shao Ofc2010
1. The document proposes an availability-aware routing algorithm for hybrid wireless-optical broadband access networks to improve network availability and throughput.
2. The algorithm calculates the availability of each link and path by considering the mean time to failure and mean time to repair of network components.
3. It finds the most available path between any source-destination pair using a modified Dijkstra's shortest path algorithm that assigns link weights based on availability. This helps route traffic along more reliable paths.
STAND-BY LEAKAGE POWER REDUCTION IN NANOSCALE STATIC CMOS VLSI MULTIPLIER CIR...
In this paper, we performed the comparative analysis of stand-by leakage (when the circuit is idle), delay and dynamic power (when the circuit switches) of the three different parallel digital multiplier circuits implemented with two adder modules and Self Adjustable Voltage level circuit (SVL). The adder modules chosen were 28 transistor-conventional CMOS adder and 10 transistor- Static Energy Recovery CMOS adder (SERF) circuits. The multiplier modules chosen were 4Bits Array, 4bits Carry Save and 4Bits Baugh Wooley multipliers. At first, the circuits were simulated with adder modules without applying the SVL circuit. And secondly, SVL circuit was incorporated in the adder modules for simulation. In all the multiplier architectures chosen, less standby leakage power was observed being consumed by the SERF adder based multipliers applied with SVL circuit. The stand-by leakage power dissipation is 1.16µwatts in Bits array multiplier with SERF Adder applied with SVL vs. 1.39µwatts in the same multiplier with CMOS 28T Adder applied with SVL circuit. It is 1.16µwatts in Carry Save multiplier with SERF Adder applied with
SVL vs. 1.4µwatts in the same multiplier with CMOS 28T Adder applied with SVL circuit. It is 1.67µwatts in Baugh Wooley multiplier with SERF Adder applied with SVl circuit vs. 2.74µwatts in the same multiplier with CMOS 28T Adder applied with SVL circuit.
Glc sx-mm
GLC-SX-MM is a high performance SFP transceiver module that supports data rates up to 1.25Gbps over multi-mode fiber up to 550m. It uses an 850nm VCSEL laser transmitter and works with 50/125um or 62.5/125um multi-mode fiber. GLC-SX-MM is hot-swappable and compatible with Gigabit Ethernet ports to connect switches, firewalls, and wireless LAN controllers. It can also be used for fiber channel connections between servers and storage devices. GLC-SX-MM upgrades and replaces the older GBIC transceiver WS-G5484, and SFP+ transceivers further upgrade
Is it possible to interconnect sfp, sfp+ and xenpak, x2…
1. It is possible to interconnect SFP+ and XENPAK/X2 modules as long as the correct fiber optic cable is used. An LC-SC fiber patch cord can connect modules with different connectors as long as the cable type matches the modules.
2. An SFP-10G-SR module cannot be interconnected with an SFP GLC-SX-MM module because the SFP-10G-SR only operates at 10Gbps while the GLC-SX-MM only operates at 1Gbps.
3. A X2-10GB-LR module cannot be connected to a 10GBASE-SR module with a 4-5m patch cord because the
Network
This flowchart summarizes the network elements and protocols in a mobile network. It shows the connections and communication between elements like the UNO MM, UNO EM, OMCR, OMCLAN, half cards, XC, GPROC, FEP, CDP MSI, XCLINK, MSCSLink, ICLINK, ICLDL, MSCSPAN, VLR, EMX, IWU, BTS, HLR, and connections to external networks like the PSTN and Internet. Protocols shown include TCP/IP, SS7, Ethernet, Token Ring, C7LINK, A+, IS-95, and IS-41.
High Speed Low Power CMOS Domino or Gate Design in 16nm Technology
Dynamic logic circuits provide more compact designs with faster switching speeds and low power consumption compared with the other CMOS design styles. This paper proposes a wide
fan-in circuit with increased switching speed and noise immunity. Speed is achieved by quickly removing the charge on the dynamic node during evaluation phase, compared to the other
circuits. The design also offers very less Power Delay Product (PDP). The design is exercised for 20% variation in supply voltage.
B0540714
This document describes a column decoder design for memory that aims to minimize power and area. It summarizes the key components of a memory architecture including a 6-transistor memory cell, precharge circuit, sense amplifier, row decoder, column decoder, and control logic. The column decoder is implemented using pass transistor logic to reduce the number of transistors and area. Simulation results show the output waveforms of the column decoder, bidirectional multiplexer, sense amplifier, and control signals, verifying the read and write cycles. The design aims to reduce memory area by using a more efficient multiplexer and reducing the required number of sense amplifiers.
Stack Contention-alleviated Precharge Keeper for Pseudo Domino Logic
The dynamic circuits are supposed to offer superior speed and low power dissipation over static CMOS circuits. The domino logic circuits are used for high system performance but suffer from the precharge pulse degradation. This article provides different design topologies on the domino circuits to overcome the charge sharing and charge leakage with reference to the power dissipation and delay. The precharge keeper circuit has been proposed such that the keeper transistors also work as the precharge transistors to realize multiple output function. The performance improvement of the circuit’s analysis have been done for adders and logic gates using HSPICE tool. The proposed keeper techniques reveal lower power dissipation and lesser delay over the standard keeper circuit with less transistor count for different process variation.
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This document presents a study comparing an orthogonal frequency division multiplexing (OFDM) system based on dual-tree complex wavelet transform (DT-CWT) to conventional OFDM and wavelet packet modulation (WPM) based OFDM systems. The key findings are:
1) The proposed DT-CWT based OFDM system achieves significantly better bit error rate performance than conventional OFDM and WPM based OFDM systems.
2) The proposed system also achieves about 3 dB better peak-to-average power ratio performance compared to conventional OFDM and WPM based systems, indicating greater signal stability.
3) The performance of the proposed DT-CWT based OFDM system is not
IJSRED-V2I5P39
The document describes novel circuits for XOR and XNOR gates that have lower power consumption and delay compared to existing circuits. Six new 1-bit full adder circuits are proposed based on the new XOR-XNOR gates. Simulation results using a 65nm CMOS process show the proposed designs have superior speed and power over other full adder circuits. A new transistor sizing technique is also introduced to further optimize the power-delay product of the circuits using particle swarm optimization.
Tsp cmc 46872
The document describes a proposed 9T SRAM cell design with the following key features:
1. It uses a combination of a standard inverter and a single-ended Schmitt trigger inverter to provide high read stability.
2. Transmission gates are used instead of single-pass gates to reduce unnecessary switching during hold mode.
3. A negative assist technique alters the trip voltage of the Schmitt trigger inverter to improve write-1 ability.
4. Multi-threshold CMOS techniques are adopted to reduce leakage power in the proposed 9T SRAM cell.
Simulation results show the proposed cell has better performance than previous 7T, 10T, 11T, ST 9T
HighGig Market Overview 2013
HighGig Market Overview 2013
SAKURA Internet Research Center.
Senior Researcher / Naoto MATSUMOTO
Infiniband DAY [06] Business Conference for Enterprise/Web Service
Iaetsd design and analysis of low-leakage high-speed
This document summarizes and compares different domino circuit designs for wide fan-in OR gates. It describes 8 different domino circuit techniques: 1) Standard Footless Domino, 2) Conditional-Keeper Domino, 3) High-Speed Domino, 4) Leakage Current Replica Keeper Domino, 5) Controlled Keeper by Current-Comparison Domino, 6) Diode Footed Domino, 7) Diode-Partitioned Domino, and 8) Wide Fan-In OR gate Current Comparison Domino. It simulates these circuits in 180nm, 130nm, and 90nm technologies and compares their power, propagation delay, energy, and energy-delay product performance.
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A Simulation Based Analysis of Lowering Dynamic Power in a CMOS Inverter
A Simulation Based Analysis of Lowering Dynamic Power in a CMOS Inverter
STAND-BY LEAKAGE POWER REDUCTION IN NANOSCALE STATIC CMOS VLSI MULTIPLIER CIR...
STAND-BY LEAKAGE POWER REDUCTION IN NANOSCALE STATIC CMOS VLSI MULTIPLIER CIR...
Is it possible to interconnect sfp, sfp+ and xenpak, x2…
Is it possible to interconnect sfp, sfp+ and xenpak, x2…
High Speed Low Power CMOS Domino or Gate Design in 16nm Technology
High Speed Low Power CMOS Domino or Gate Design in 16nm Technology
Stack Contention-alleviated Precharge Keeper for Pseudo Domino Logic
Stack Contention-alleviated Precharge Keeper for Pseudo Domino Logic
An OFDM System Based on Dual Tree Complex Wavelet Transform (DT-CWT)
An OFDM System Based on Dual Tree Complex Wavelet Transform (DT-CWT)
Iaetsd design and analysis of low-leakage high-speed
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Similar to Rx2 0 social media v1 jh
Multi-Chassis Trunking for Resilient and High-Performance Network Architectures
MCT is a Brocade technology that allows multiple switches to appear as a single logical switch, providing resilient and high-performance network architectures. It uses standard LAG protocols for load balancing and failover across switches. MCT peers maintain state synchronization through CCP. MCT supports active-active topologies, efficient multipathing, and fast failover times. It can be used to build scalable Layer 2-3 networks in data centers and metro areas.
Megis mpls
The document provides an introduction to MPLS (Multi Protocol Label Switching) including:
- MPLS uses labels attached to packets and a label forwarding table to make packet forwarding decisions instead of using IP headers and routing tables.
- MPLS labels are assigned and distributed by the Label Distribution Protocol (LDP).
- MPLS enables traffic engineering by allowing traffic to be shifted onto less utilized links and tunnels to be used to guarantee bandwidth between points.
- RouterOS supports MPLS features including static label binding, LDP, VPLS, RSVP TE tunnels, and can be used to transition from an EoIP solution to a VPLS.
Unified MPLS
The document discusses the need for unified MPLS networks to efficiently support increasing packet transport demands. It notes that service and revenue models are shifting from circuit-based to packet-based as traffic demands explode. It also discusses how events like cloud computing and LTE deployment are driving adoption of intelligent packet-based networks. Unified MPLS allows for a single end-to-end network that simplifies operations through protocol reduction and separation of transport from service operations. Leading network operators are adopting this approach to build more cost-effective networks that can improve return on investment.
10 fn s26
The document discusses requirements for efficient mobile backhaul with carrier Ethernet to support LTE networks. It covers:
- LTE network architecture and how it impacts transport network requirements, including the need for multi-service capability, low cost per bit transport, and support for a transition to packet-based networks.
- Key transport network requirements created by LTE like powerful OAM, fast protection switching, strong QoS support, multicast/broadcast support, and interoperability with the packet core.
- How MPLS-TP can fulfill these requirements through features like VPN support, coordinated tunnel setup, comprehensive OAM tools, sub-50ms protection switching, and support for QoS, performance monitoring
10 fn s26
The document discusses requirements for efficient mobile backhaul with carrier Ethernet to support LTE networks. It covers:
- LTE network architecture and how it impacts transport network requirements, including the need for multiservice capability, low cost per bit transport, and support for a transition to packet-based networks.
- Key transport network requirements created by LTE like powerful OAM, fast protection switching, strong QoS support, security, and interoperability with the packet core.
- How MPLS-TP can fulfill these requirements through features like VPN support, bearer provisioning across interfaces, coordinated tunnel setup, comprehensive OAM tools, and protection switching capabilities.
Backhaul considerations-ver2
The document discusses LTE backhaul considerations for network evolution. It emphasizes that backhaul must support LTE's technical requirements while ensuring business profitability. A successful backhaul solution enables seamless evolution through flexible topology, granular QoS controls, and simple network changes. IP/MPLS is recommended to provide service and transport independence across 2G, 3G and LTE networks.
Next generation-ptn-white-paper
This white paper discusses next-generation packet-based transport networks (PTN) with a focus on MPLS technologies. It describes how MPLS allows for cost-efficient routing of traffic in core networks and how it is used to deliver layer 3 and layer 2 VPN services. The paper also discusses layer 3 VPNs, layer 2 VPNs, virtual private wire service (VPWS), and virtual private LAN service (VPLS) as the major components of layer 2 VPNs delivered over MPLS networks.
MPLS-TP (MPLS Transport Profile)
MPLS-TP is subset of MPLS. It uses the same data plane as used by MPLS (Defined in RFC 3031 and RFC 3032). MPLS-TP has four major areas:-
1. Data Plane
2. Control Plane
3. O&M
4. Survivability
MPLS-TP has no control plane, the reason for this was that the recovery. If the dynamic control plane is used, in that case the convergence would depend on the dynamic protocol and providers cannot leverage the <50 ms failover time in that case. It uses the same QoS diffserv model except uniform model as used in MPLS.
Catalog2009
The document is a 2008-2009 product catalogue from CNE T that describes their networking equipment offerings. It includes summaries of various switches, including:
- Gigabit Ethernet switches with 5, 8, 16, and 24 ports
- Fast Ethernet switches with 5, 8, 16, and 24 ports
- Web smart switches with 16 and 24 ports
- Layer 2 managed switches with 16-48 ports and expansion module slots
The summaries provide key features of each switch such as port configuration, switching capacity, management options, VLAN support, QoS, and security features.
Hacia el Data Center virtualizado- Fabian Domínguez
The document discusses the evolution of data centers towards virtualization and cloud computing. It highlights how technologies like the x86 platform and VMWare have enabled this change, and how networking, computing and storage systems need to evolve as well to support increased virtualization. This includes improvements in areas like virtual network integration, higher bandwidth connectivity, storage unification, faster provisioning times, and virtual desktop solutions. The network is positioned as the platform enabling these changes in virtualized data centers.
Options for time-sensitive networking for 5G fronthaul
Jim Zou’s ECOC 2019 presentation covered the latest developments in 5G network timing. View the slide deck for more.
Data Networks: Next-Generation Optical Access toward 10 Gb/s Everywhere
Data Networks: Next-Generation Optical Access toward 10 Gb/s EverywhereXi'an Jiaotong-Liverpool University
This document discusses next-generation optical access networks and moving toward providing 10 Gbps connectivity everywhere. It outlines several key points:
1) It discusses the business and architectural issues with current networks and the need for a paradigm shift toward more flexible, dynamically reconfigurable networks.
2) It proposes an ultimate optical network architecture using a common infrastructure for access, metro, and backbone networks to gain statistical multiplexing benefits across different traffic patterns and usage.
3) It introduces a quantitative analysis framework using an extended equivalent circuit rate (ECR) metric to define and measure a requirement of "10 Gbps everywhere" in a quantifiable way for different network architectures.Atomf ov
Cisco's Any Transport over MPLS (AToM) solution allows service providers to transport Layer 2 packets over an IP/MPLS backbone. This provides a single, converged network infrastructure to deliver traditional services like ATM and Frame Relay as well as Ethernet connections. AToM encapsulates different traffic types and transports them transparently over an MPLS core network. It enables straightforward provisioning and connecting of Layer 2 networks between customer sites.
Networing basics
The document discusses underlying technologies for computer networks including transmission media, local area networks (LANs) like Ethernet and Token Ring, switching methods like circuit switching and packet switching, wide area networks (WANs) like PPP, X.25 and Frame Relay, interconnecting devices, and differences between shared media and switched LAN architectures. It provides details on CSMA/CD and IEEE 802 standards for Ethernet, features and problems of Ethernet, Token Ring features, circuit switching vs. packet switching, PPP, X.25, Frame Relay, ATM, internetworking terms, transparent bridges, and differences between shared media and switched LAN architectures.
Dont forget-the-control-plane
MPLS-TP control plane is beneficial. It brings significant automation and reduced OPEX. Management is provisioned and control plane NEs will co-exist in many networks. Many vendors are building NEs with both management and control plane provisioning.
Infocom03 rajiv
The document summarizes the future of optical networking. It predicts modest post-bubble growth driven by revenue, with most spending still on SONET/SDH rather than WDM. It outlines the adoption of multi-service provisioning platforms, multi-service switching platforms, and multi-service transport platforms over time. Finally, it describes how MSPPs, MSSPs, and MSTPs fit into access/collector, intra-metro/regional, and inter-office networks.
Carrier Aggregation - (one) key enabler for LTE-Advanced
Carrier aggregation is the most demanded feature out of the LTE-Advanced (3GPP Release 10) feature set. This feature allows the aggregation of component carrier that for instance reside in different frequency bands. Especially U.S.-based network operator show a strong interest in carrier aggregation, as it is the way out of the very fragmented spectrum allocation here in the U.S. Carrier aggregation is adding some complexity to LTE and of course our customers have an interest to understand the feature in greater detail as well as how our solutions, especially the CMW500, could be utilized to test carrier aggregation. The attached TechPaper is our response to this demand. On 12 pages carrier aggregation is described with all of its aspects, different types and modes, impact on signaling procedures and how to test using Rohde&Schwarz turnkey solutions, including CMW500.
Local Restoration in Metro Ethernet Networks for Multiple Link Failures
Ethernet a popular choice for metropolitan-area networks (MAN) due to simplicity, cost effectiveness and scalability. The
Spanning-Tree based switching mechanism, which is considered to be very efficient at avoiding switching loops in LAN environment,
is a performance bottleneck in Metro network context. Handling of link failure is an important issue in metro Ethernet networks. A
link failure may result in serious service disruptions. A local restoration method for metro Ethernet with multiple spanning trees, which
aims at fast handling of single link failures in a distributed manner, have been proposed in the literature. In this paper, we propose a
local restoration mechanism that uses MULTILINK algorithm for solving multiple link failures
DCTcp
DCTCP is an enhancement to TCP for data center networks that leverages ECN to provide more granular congestion feedback than standard TCP. It estimates the fraction of marked packets to react to the extent of congestion rather than just its presence. This finer control allows DCTCP to maintain low buffer occupancy while achieving high throughput. The algorithm adapts the window size based on the marked packet ratio in each RTT to be more responsive to congestion than standard TCP. DCTCP addresses the key requirements for data center networks of handling bursty traffic, low latency, and high throughput.
PONs overview
The document discusses different types of passive optical networks (PONs) including BPON/APON, EPON, and GPON. It describes the key components of a PON including the optical line terminal (OLT) located at the central office which provides the interface to the backbone network, and optical network units (ONUs) or optical network terminals (ONTs) located at the customer premises. It also discusses the optical distribution network (ODN) which connects the OLT to the ONUs/ONTs using passive splitters, and some advantages and disadvantages of PON architectures.
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Multi-Chassis Trunking for Resilient and High-Performance Network Architectures
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Rx2 0 social media v1 jh
- 1. Continuous Operation & Simplified Architecture Introducing Multi-Chassis Trunking (MCT) MLXe • With MCT, all nodes MLXe active and forwarding Layer 2/3 traffic VRRP-E VRRP-E 10G 10G Backup Master Forwarding RX Near 8 Tbps R • MCT simplifies network Layer 3 X Layer 3 Forwarding Forwarding design and delivers full 10G use of the network MCT All Links 10G 10G All Links Active Active • MCT delivers high resiliency - instantaneous link or ToR Switch node failover • MCT is supported on 200~250ms RX-4, RX-8 & RX-16 1/10GServers chassis © 2010 Brocade Communications - Company Proprietary Information 1
Editor's Notes
- Key PointsEnabling virtualization capabilities, such as Virtual Machine (VM) mobility, requires VMs to migrate within a single Layer 2 network.Paths are designated through the network as active or standby using STP. While this provides an alternate path, only one path can be used at a time, which means that network bandwidth is not well utilized.Since one of the goals of server virtualization is to increase utilization of the physical server, increased utilization of network bandwidth should also be expected.To increase network utilization, Multiple Spanning Tree Protocol (MSTP) and similar protocols allow for separate spanning trees per VLAN. While this improves bandwidth utilization, the STP limit of one active path between switches remains. And, because traffic paths are manually configured with MSTP, complexity increases.Another challenge with STP is network behavior when links fail. When failures occur, the spanning tree needs to be redefined. This can take anywhere from five seconds with Rapid Spanning Tree (RSTP) up to several minutes with STP—and this convergence can vary unpredictably even with small topology changes.