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New Catalyst Performance of Cisco Switch Engines

February 22 2016 , Written by Cisco & Cisco Router, Network Switch Published on #Cisco Switches - Cisco Firewall, #Cisco Modules & Cards

Cisco Catalyst 4500E Supervisor Engine 8L-E

Cisco Catalyst 4500E Supervisor Engine 8L-E

To Read the Cisco Catalyst 4500E Supervisor Engine 8L-E

To Read the Cisco Catalyst 4500E Supervisor Engine 8L-E

Cisco introduced two supervisor engines last week--the 6T and 8L-E. The former is for the Catalyst 6700, 6800 and 6900 series, while Cisco has aimed the latter at the Catalyst 4500E.

Both switch engines are scheduled to ship in April.

Read more about the Updated: Cisco Catalyst 4500 Supervisor Engine 8-E and 8L-E & Introducing Cisco Catalyst 6800 Series Supervisor Engine 6T

In general, the Catalyst switches are designed for the campus backbone, the wiring closet, or a small office or retail network. Switch engines, which are the brains of the Catalyst, extend the usefulness of the hardware as application-driven network traffic rises.

The 6T raises speeds to 400 Gbps per slot on the Catalyst 6807-XL chassis. As a result, the supervisor engine can increase switch capacity to 6 Tbps and scale to 12 Tbps when in the Virtual Switching System configuration. The Supervisor Engine 6T is compatible with 10 Gb, 40 Gb and 100 Gb line cards, and has 8 x 10 GbE and 2 x 40 GbE uplinks to support high-performance applications.

The 8L-E has up to 560 Gbps of wired switching capacity and can handle independent packets simultaneously at a rate of 48 Gbps. The extension has four 10 GbE uplinks.

Cisco upgrades wireless, UCS platforms

With the latest switch engines, Cisco introduced the Catalyst 3650-Mini for companies with space-constrained locations. The hardware mirrors the 3650 family of switches in a 1RU form factor. It's available with 24 or 48 fixed PoE+ GbE ports.

For wireless networks, Cisco introduced 802.11ac Wave 2 access points under the Aironet and cloud-managed Meraki brands. The company also introduced stackable Meraki MS Switches that feature 16 or 32 1 Gbps ports, and hot-swappable power supplies and fans.

The Catalyst and wireless network upgrades reflect Cisco's two-prong product strategy of strengthening its on-premises and cloud-managed technology, which also includes security, said Rohit Mehra, an analyst at IDC. By focusing on both, Cisco is bolstering its core platforms for switching and routing, while also addressing the needs of the "midmarket, distributed enterprise that is developing a greater affinity for leveraging cloud for IT infrastructure."

For the data center, Cisco introduced the 6300 Series Fabric Interconnect for the company's Unified Computing System (UCS), which combines compute, storage and networking into a single platform. Cisco's fabric interconnects provide the management and communication backbone of the UCS B-Series Blade Servers, 5100 Series Blade Server Chassis and the C-Series Rack Servers.

The 6300 Series features two 1RU 40 GbE switches and a 40 GbE Fabric Extender. The products leverage the Virtual Interface Card 1300 series, which is designed to support up to 40 GbE networks. The card supports network overlay technologies, such as VXLAN.

The Article from http://searchnetworking.techtarget.com/news/4500272897/Cisco-switch-engines-boost-Catalyst-performance

More Related…

Cisco Catalyst 4500E Supervisor Engine 8L-E in Detail

Updated: Cisco Catalyst 4500 Supervisor Engine 8-E and 8L-E

Introducing Cisco Catalyst 6800 Series Supervisor Engine 6T

Cisco 4500E Supervisor 8E vs. Supervisor 7E vs. Supervisor 7LE

Read more

The Different Types of Ethernet Switches

February 1 2016 , Written by Cisco & Cisco Router, Network Switch Published on #Cisco Switches - Cisco Firewall

More about the Types of Cisco Switches:

More about the Types of Cisco Switches:

There are two main categories of Ethernet Switches: Modular and Fixed Configuration.

What are the Exact Modular and Fixed Configuration switches?

Modular switches, as the name implies, allows you to add expansion modules into the switches as needed, thereby delivering the best flexibility to address changing networks. Examples of expansion modules are application-specific (such as Firewall, Wireless, or Network Analysis), modules for additional interfaces, power supplies, or cooling fans.

Good examples of Modular switches: Cisco Catalyst 4K and Catalyst 6K.

Fixed Configuration switches are switches with a fixed number of ports and are typically not expandable.

Good Examples of Fixed Configuration Switches: Cisco Catalyst 2K, Catalyst 3K and the Cisco 300/500 series.

The Fixed configuration switch category is further broken down into:

– Unmanaged Switches

– Smart Switches

– Managed L2 and L3 Switches

Unmanaged Switches:

This category of switch is the most cost effective for deployment scenarios that require only basic layer 2 switching and connectivity. As such, they fit best when you need a few extra ports on your desk, in a lab, in a conference room, or even at home.

With some Unmanaged switches in the market, you can even get capabilities such as cable diagnostics, prioritization of traffic using default QoS settings, Energy savings capabilities using EEE (Energy Efficient Ethernet) and even PoE (Power Over Ethernet). However, as the name implies, these switches generally cannot be modified/managed. You simply plug them in and they require no configuration at all.

Cisco 100 Series switches are good examples of this category.

Smart Switches (also known as Lightly Managed Switches):

This category of switches is the most blurred and fastest changing. The general rule here is that these switches offer certain levels of Management, QoS, Security, etc. but is “lighter” in capabilities and less scalable than the Managed switches. It therefore makes them a cost-effective alternative to Managed switches. As such, Smart switches fit best at the edge of a large network (with Managed Switches being used in the core), as the infrastructure for smaller deployments, or for low complexity networks in general.

The capabilities available for this Smart switch category vary widely. All of these devices have an interface for Management – historically a browser-based interface used to be the only way to configure these devices, though nowadays you can manage some of these devices with CLI and/or SNMP/RMON as well. Regardless, these capabilities are lighter than what you will find in their Managed switch counterparts. Smart switches tend to have a management interface that is more simplified than what Managed Switches offer.

Smart switches allow you to segment the network into workgroups by creating VLANs, though with a lower number of VLANs and nodes (MAC addresses) than you’d get with a Managed switch.

They also offer some levels of security, such as 802.1x endpoint authentication, and in some cases with limited numbers of ACLs (access control lists), though the levels of control and granularity would not be the same as a Managed switch.

In addition, Smart switches support basic quality-of-service (QoS) that facilitates prioritization of users and applications based on 802.1q/TOS/DSCP, thereby making it quite a versatile solution.

Cisco 200 Series switches are good examples of this category.

Fully Managed L2 and L3 switches:

Managed Switches are designed to deliver the most comprehensive set of features to provide the best application experience, the highest levels of security, the most precise control and management of the network, and offer the greatest scalability in the Fixed Configuration category of Switches. As a result, they are usually deployed as aggregation/access switches in very large networks or as core switches in relatively smaller networks. Managed switches should support both L2 switching and L3 IP routing though you’ll find some with only L2 switching support.

From a Security perspective, Managed switches provide protection of the data plane (User traffic being forwarded), control plane (traffic being communicated between networking devices to ensure user traffic goes to the right destination), and management plane (traffic used to manage the network or device itself). Managed switches also offer network storm control, denial-of-service protection, and much more.

The Access Control List capabilities allows for flexibly dropping, rate limiting, mirroring, or logging of traffic by L2 address, L3 address, TCP/UDP port numbers, Ethernet type, ICMP or TCP flags, etc.

Managed switches are rich in features that enable them to protect themselves and the network from deliberate or unintended Denial of Service attacks. It includes Dynamic ARP Inspection, IPv4 DHCP snooping, IPv6 First Hop Security with RA Guard, ND Inspection, Neighbor Binding Integrity, and much more.

Additional Security capabilities may include Private VLANs for securing communities of users or device isolation, Secure Management (downloads through SCP, Web-based Authentication, Radius/TACACS AAA, etc), Control Plane Policing (CoPP) for protecting the CPU of the switch, richer support for 802.1x (time-based, Dynamic VLAN Assignment, port/host-based, etc)

From a Scalability perspective, these devices have large table sizes so that you can create large numbers of VLANs (for workgroups), devices (MAC table size), IP routes, and ACL policies for flow-based security/QoS purposes, etc.

For highest network availability and uptime, Managed switches support L3 redundancy using VRRP (Virtual Router Redundancy Protocol), large numbers of Link Aggregation groups (which is used both for scalability and resiliency), and capabilities for protecting L2 such as Spanning Tree Root Guard and BPDU Guard.

When we talk about QoS and Multicast features, the richness of capabilities goes far beyond what you’d see in a Smart Switch. Here you’d see things such as IGMP and MLD Snooping with Querier functions for optimizing IPv4/v6 multicast traffic in the LAN, TCP Congestion Avoidance, 4 or 8 queues to treat traffic differently by importance, setting/tagging traffic by L2 (802.1p) or L3 (DSCP/TOS), and rate limiting traffic.

In terms of Management, things such as multiple ways to configure (using CLI, Web GUI, SNMP Management application), discovering of neighbor devices in the networks (using CDP, LLDP, Bonjour, etc), and troubleshooting capabilities (such as VLAN and Port Mirroring, Traceroute, Ping, Syslog, Cable Diagnostics, RMON, etc) are all included.

What I highlighted is by no means exhaustive, but gives you a sense of what some of the differences may be between Managed and Smart Switches.

Cisco Catalyst and Cisco 300 Series and 500 Series switches are good examples of this category of products.

Managed Switches can go even further than what I’ve highlighted. For example, there’s even richer support for Dynamic Unicast and Multicast Routing protocols, deeper flow intelligence or macro flow statistics with Netflow/SFlow, non-Stop Forwarding capabilities, MPLS/VRF support, Policy enforcement, and many others.

Now, to take a deeper dive into these switch categories and talk about various options, you can select the switches based on:

– Speed

– Number of ports

– POE versus non-POE

– Stackable versus Standalone

Speed:

You can find Fixed Configuration switches in Fast Ethernet (10/100 Mbps), Gigabit Ethernet (10/100/1000 Mbps), Ten Gigabit (10/100/1000/10000 Mbps) and even some 40/100 Gbps speeds. These switches have a number of uplink ports and a number of downlink ports. Downlinks connect to end users – uplinks connect to other Switches or to the network infrastructure. Currently, Gigabit is the most popular interface speed though Fast Ethernet is still widely used, especially in price-sensitive environments. Ten Gigabit has been growing rapidly, especially in the datacenter and, as the cost comes down, it will continue to expand into more network applications. With 10GBase-T Ten Gigabit copper interfaces being integrated into LOM (LAN on the Motherboard) and 10G-Base-T switches becoming available now (see the Cisco SG500XG-8F8T 16-port 10-Gigabit switch), building a Storage or Server farm with 10 Gigabit interfaces has never been easier or more cost-effective. 40G/100G is still emerging and will be mainstream in a few years.

Number of ports:

Fixed Configuration Switches typically come in 5, 8, 10, 16, 24, 28, 48, and 52-port configurations. These ports may be a combination of SFP/SFP+ slots for fiber connectivity, but more commonly they are copper ports with RJ-45 connectors on the front, allowing for distances up to 100 meters. With Fiber SFP modules, you can go distances up to 40 kilometers

POE versus non-POE:

Power over Ethernet is a capability that facilitates powering a device (such as an IP phone, IP Surveillance Camera, or Wireless Access Point) over the same cable as the data traffic. One of the advantages of PoE is the flexibility it provides in allowing you to easily place endpoints anywhere in the business, even places where it might be difficult to run a power outlet. One example is that you can place a Wireless Access Point inside a wall or ceiling.

Switches deliver power according to a few standards – IEEE 802.3af delivers power up to 15.4 Watts on a switch port whereas IEEE 802.3at (also known as POE+) delivers power up to 30 Watts on a switch port. For most endpoints, 802.3af is sufficient but there are devices, such as Video phones or Access Points with multiple radios, which have higher power needs. It’s important to point out that there are other PoE standards currently being developed that will deliver even high levels of power for future applications. Switches have a power budget set aside for running the switch itself, and also an amount of power dedicated for POE endpoints.

To find the switch that is right for you, all you need to do is choose a switch according to your power needs. When connecting to desktops or other types of devices which do not require POE, the non-POE switches are a more cost-effective option.

Stackable versus Standalone:

As the network grows, you will need more switches to provide network connectivity to the growing number of devices in the network. When using Standalone switches, each switch is managed, troubleshot, and configured as an individual entity.

In contrast, Stackable switches provide a way to simplify and increase the availability of the network. Instead of configuring, managing, and troubleshooting eight 48-port switches individually, you can manage all eight like a single unit using a Stackable Switches. With a true Stackable Switch, those eight switches (total 384 ports) function as a single switch – there is a single SNMP/RMON agent, single Spanning Tree domain, single CLI or Web interface – i.e. single management plane. You can also create link aggregation groups spanning across multiple units in the stack, port mirror traffic from one unit in the stack to another, or setup ACLs/QoS spanning all the units. There are valuable operational advantages to be gained by this approach.

Here’s a word of warning. Be careful about products in the market which are sold as “Stackable” when they merely offer a single user interface, or central management interface, for getting to each individual switch unit. This approach is not stackable, but really “clustering”. You still have to configure every feature such as ACLs, QoS, Port mirroring, etc, individually on each switch. Use the following as a proof point – can I create a link aggregation group with one port in one unit of the stack and another port of that group in another unit of the stack? Can I select a port on one unit in the stack and mirror the traffic to a port on another unit of the stack? When I configure an ACL for Security purposes, can I apply that to any port on any unit in the stack? If the answer is “No” to any of these questions, you’re probably not working with a stackable switch.

There are other advantages of True Stacking as well. You can connect the stack members in a ring such that, if a port or cable fails, the stack will automatically route around that failure, many times at microsecond speeds. You can also add or subtract stack members and have it automatically recognized and added into the stack.

Cisco Catalyst 2K-X and 3K or Cisco 500 Series Switches are examples of Switches in this category.

As you can see there’s a multitude of switch options to choose from. So, have a close look at your current deployment and future needs to determine the right switch for your network.

From http://blogs.cisco.com/smallbusiness/understanding-the-different-types-of-ethernet-switches

More Related Cisco Network Switch Topics

Cisco Catalyst Switches for Campus Networks & Nexus Switches for Data Centers

Cisco Catalyst Switches for the Different Types of Campuses

About Cisco Catalyst Multigigabit Ethernet & Cisco Multigigabit Ethernet Switches

Layer-3 Switching or Layer-2 Switching?

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