2011年6月29日星期三

Cisco Firewalls Security, Essential for Business’s Safety


Owing to weak defense for net virus, Cisco firewall security plays a vital role in internet safety, so a reliable network firewall helps your company or home net keep unauthorized visitors from accessing valuable business resources.

Instead of providing only point products that set a base level of security, Cisco firewall price embeds network security throughout the network and integrates security services in all its products. As a result, network firewall security becomes a transparent, scalable, and manageable aspect of the business infrastructure.

As a leading designer and manufacturer of networking solutions, Cisco is always providing reliable integrated network firewall solutions with high performance to help secure various network environments.

Email and web Security, network Security, secure access Control, secure mobility, security management, used cisco firewall all these have been considered in designing a best solution to protecting your business’ net safety.

Cisco firewall security includes popular Cisco ASA 5500 series, Cisco PIX firewall security, Cisco IPS 4200 Series Sensor, etc.

More about Cisco ASA 5500 Series
Cisco ASA 5500 Series adaptive cisco security appliances are purpose-built solutions that combine best-of-breed security and VPN services with the innovative Cisco Adaptive Identification and Mitigation (AIM) architecture.
Designed as a core component of the Cisco Self-Defending Network, the Cisco ASA 5500 Series provides proactive threat defense that stops attacks before they spread through the network, controls network activity and application traffic, and delivers flexible VPN connectivity. cisco firewalls The result is a powerful multifunction network security appliance family that provides the security breadth and depth for protecting home office, branch office, small and medium-sized business, and enterprise networks while reducing the overall deployment and operations costs and complexities associated with providing this new level of security.

More info of Cisco ASA 5500 series and other Cisco firewalls security you can see routerswitch.com or cisco.com to check. Price and purchasing details are also offered at Cisco firewall security at routerswitch.com.

2011年6月21日星期二

Router? Switch? Be Clear the Difference Between Router and Switch.


When someone talk about wholesale Cisco router and switch with me, I’m very confused about this. Router Switch? What are they? What are they used for? Oh, My Lady Gaga, complicated.
However, after I have found some details of switch router, it seems a little interesting. Because both router and switch are tightly related to network, to internet. If you have PCs, if you need to email to somebody, or if you want to chat with friends, they are necessarily contained. Haha, eager to get more information of router and switch. I search many details and “the difference between routers cisco and switch” through Google. Now, I’d like share some key info about router and switch.
 
What’s a router-switch? A router is a more sophisticated network device than either a switch or a hub. It is a device that forwards data packets across computer networks, and perform the data "traffic directing" functions on the Internet. On the Internet or on a large corporate network, for example, routers serve as intermediate destinations for network traffic. These routers receive TCP/IP packets, look inside each packet to identify the source and target IP addresses, then forward these packets as needed to ensure the data reaches its final destination. Routers for home networks (often called broadband routers) also can join multiple networks. These routers are designed specifically to join the home (LAN) to the Internet (WAN) for the purpose of Internet connection sharing. In contrast, neither hubs nor switches are capable of joining multiple networks or sharing an Internet connection.
And switch? A network switch or switching hub is a computer networking device that connects network segments. The term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. By paying attention to the traffic that comes across it, it can "learn" where particular addresses are. For example, if it sees traffic from machine A coming in on port 2, it now knows that machine A is connected to that port and that traffic to machine A needs to only be sent to that port and not any of the others.
The two pieces of equipment (router and switch) look so similar and perform some similar functions, but each has its own distinct function to perform on a network. To be simple, switches create a network. Routers connect networks. A router links computers to the Internet, so users can share the connection. A router acts as a dispatcher, choosing the best path for information to travel so it's received quickly.
So what do you need? Buy cisco router or switch? After got these above, you can make sure that which you need. And more information of Cisco sale, you can visit RouterSwitch.com.

2011年6月15日星期三

Cisco 881 router, Welcomed by Small Offices and Business


The buy cisco extends the high-performance Cisco Integrated Services Router capabilities of running secure concurrent services, including firewall, VPNs, and WLANs, at broadband speeds to small offices.

With models supporting different broadband technologies such as DSL, cable, and Metro Ethernet, cisco887 Router can be deployed at any small office location. Optional integrated 802.11b/g wireless capabilities provide true business-class WAN and WLAN access in a single solution.

Main cisco 881 router Models
Models
WAN Interface
LAN Interfaces
802.11b/g Option
Integrated ISDN Dial Backup
Cisco 871
10/100 Mbps Fast Ethernet
4-port 10/100 Mbps managed switch
Yes (Cisco 871W)
-
Cisco 876
Asymmetric DSL (ADSL) over ISDN
4-port 10/100 Mbps managed switch
Yes (Cisco 876W)
Yes
Cisco 877
ADSL over POTS
4-port 10/100 Mbps managed switch
Yes (Cisco 877W)
-
Cisco 878
G.SHDSL
4-port 10/100 Mbps managed switch
Yes (Cisco 878W)
-

With Cisco 887 Series enterprise IT managers and service providers can take advantage of a solution that can be easily set up at the remote site and then be centrally managed to reduce ongoing operational costs.

More Notes about cisco 887 router Sale
For small offices, the Cisco router 870 series is a very good choice. After checking many online stores’ sale info, we’ll list some hot models of Cisco 870 series routers:
1.       Cisco 871-K9: US$337.00
2.       Cisco 871-SEC-K9: US$415.00
3.       Cisco 878-K9: US$389.00
4.       Cisco 878-SEC-K9: US$467.00
5.       Cisco 888-K9: US$673.00
6.       Cisco 888-SEC-K9: US$751.00
7.       Cisco 881G-A-K9: US$779.00

More models’ prices you can visit Cisco Router 800 Series (Cisco 850, Cisco 860, Cisco 870, cisco 888 router, Cisco 890) at RouterSwitch.com…

2011年6月2日星期四

Cisco 7200 Series Routers, Including Cisco 7204VXR, Cisco 7206VXR



Cisco 7200 series routerdelivers exceptional performance and price, modularity, and scalability in a compact form factor with a wide range of deployment options.To support a wide range of density, performance, and service requirements, the Cisco 7200 Series offers exceptional price/performance (the new NPE-G2 Network Processing Engine aggregates services at up to 2 Mpps); a wide range of connectivity options and numerous features including serviceability and manageability; increased VPN performance with the new VPN Services Adapter; increased scalability and flexibility with the new Port Adapter Jacket Card.

Pay attention to Cisco 7200VXR series routers’ main features and benefits
Up to 2 Mpps Processing Capability: Provides high-performance routing and processing performance
Maximum Connectivity Options: Meets a variety of topology requirements with the widest range of port densities and interface options
Breadth of Services: Supports QoS, 7206VXR/NPE-G2 security, MPLS, broadband, multiservice, voice, IP-to-IP Gateway and management features for next-generation networks
Investment Protection: Low initial investment with upgrade and redeployment capability

The Cisco 7206 seriesoffers a variety of processors, I/O controllers, and memory options in order to offer customers a "customized" configuration to meet their network needs. And eachconfigured Cisco 7200 system includes a chassis, processor, Input/output (I/O) controller, memory, power supply(s), and IOS software.

Port Adapter Jacket Card
The Cisco 7200 VXR 7206VXR/NPE-G1 shares the same port adapters with the Cisco 7400, 7500, and 7600 FlexWAN module, protecting customer investment in interfaces, providing a clear migration path, and simplifying sparing.

Cisco7204 VXR and 7206 VXR chassis has a dedicated slot for an I/O controller slot that can be used to install a Port Adapter Jacket Card. The Port Adapter Jacket Card can hold single (selected) Port or Service Adapter for easy port and slot expansion.

The Cisco 7200 VXR Series Port Adapter Jacket Card supports the following port adapters:
• Cisco VPN Acceleration Module 2 (SA-VAM2)-Supported only in combination with NPE-G1
• AES wide key crypto card (SA-VAM2+)
• 2-Port Packet/SONET OC3c/STM1 Port Adapter (PA-POS-2OC3)
• 2 Port T3 Serial Port Adapter Enhanced (PA-MC-2T3+)
• 1 port multichannel STM-1multi- and single mode port adapter (PA-MC-STM-1MM, PA-MC-STM-1SMI)
• 1-port Enhanced Port Adapter Series (PA-A3-T3, PA-A3-E3, PA-A3-OC3MM, PA-A3-OC3SMI, PA-A3-OC3SML, PA-A6-T3, PA-A6-E3, PA-A6-OC3MM, PA-A6-OC3SMI, PA-A6-OC3SML)

Note: The Cisco Mix-Enabled T1/E1 Port Adapters for the Cisco 7200 VXR Series router are not compatible with the Port Adapter Jacket Card.

More details: If you want to know more about CISCO 7200 series router, such as protocols, hardware requirements, software requirements, etc. you can visit Cisco’s official website http://www.cisco.com/en/US/prod/collateral/routers/ps341/product_data_sheet09186a008008872b.html

Cisco 7200VXR Ordering Details:
To visit RouterSwitch.com to check the page of Cisco 7200 series router, price, ordering tips and guides offered there…