Cisco Catalyst 3560-E Series Switches are an enterprise-class line of standalone access and aggregation switches that facilitate the deployment of secure converged applications while maximizing investment protection for evolving network and application requirements. Configurations for the Cisco WS-C3560E-48PD-EF access switches include 24 and 48 ports of 10/100/1000 Ethernet with dual 10 Gigabit Ethernet ports. Power over Ethernet is available on both the 24-port and 48-port models and can deliver IEEE 802.3af 15.4W class 3 PoE on all ports simultaneously. Combining 10/100/1000 and PoE configurations with 10 Gigabit Ethernet uplinks, the Cisco WS-C3560E-48PD-SF enhances worker productivity by enabling applications such as IP telephony, wireless, and video.
The Cisco Catalyst 3560-E Series aggregation solutions - the Cisco Catalyst 3560E-12D, a 12-port 10 Gigabit Ethernet aggregation switch, and the Cisco Catalyst 3560E-12SD, a 12-port SFP Gigabit Ethernet aggregation switch with 2 10 Gigabit Ethernet uplink ports, deliver secure nonstop unified network services and versatile connectivity in a one-rack unit (1-RU) form factor for space- and power-constrained environments, enabling businesses to reduce total cost of ownership while maximizing investment protection.
Cisco WS-C3560E-48PD-S highlights:
• Cisco TwinGig converter module for migrating uplinks from Gigabit Ethernet to 10 Gigabit Ethernet
• PoE configurations with 15.4W of PoE on all 48 ports
• Industry first portfolio to scale beyond 15.4W per port delivering maximum solution simplicity for 802.11n access point deployments
• Access switch models have modular power supply with externally available backup
• Dual redundant modular power supplies and fans for Cisco Catalyst 3560E-12D and Cisco Catalyst 3560E-12SD aggregation switches for nonstop operation
• Multicast routing, IPv6 routing, and access control list (ACL) in hardware
• Out-of-band Ethernet management port along with RS-232 console port
Benefits of the WS-C3560E-24PD-S
Scale your network as your business grows: With the TwinGig converter module, you can convert the 10 Gigabit Ethernet interfaces into dual SFP ports in the access and aggregation layers, allowing you to migrate from Gigabit to 10 Gigabit Ethernet when your business demands change without changing network devices. The Cisco Catalyst 3560E-12D also enables the aggregation of up to 12 10 Gigabit Ethernet links within a compact 1-RU form factor in space-constrained environments. Decrease network costs over time: the Cisco Catalyst 3560-E delivers full PoE (15.4W) on every 10/100/1000 port so that as your needs for PoE and Gigabit Ethernet grow, you are positioned to support them without costly upgrades or complete network replacements.
2011年11月17日星期四
2011年10月19日星期三
How to Configure a DHCP Cisco 1841?
Cisco 1841 is a highly capable router that provides the full feature set needed for small or remote office connectivity to the Internet or other private networks. Dynamic Host Configuration Protocol (DHCP) service is one of the features supported by the cisco 1841 router port and must be enabled if the router is expected to provide dynamic Internet Protocol (IP) addressing to hosts on the private network. The DHCP feature includes many options; however, you can set up a standard configuration in about 30 minutes.
Tips: DHCP service is one of many features that you can enable on a Cisco 1841 router.
Things you’ll use
Cisco serial console cable
- Microsoft Windows XP computer with 9-pin serial port
- Network IP number and subnet mask intended for the network
- IP address for the network DNS server
- IP address for the network default gateway
- IP address of a local FTP server
- Name of the directory where DHCP logs can be stored on the FTP server
- Credentials of an account that has access to the FTP server
Instructions to Configure a DHCP cisco 1841 rear view Step by Step
Step1. Connect the Cisco serial console cable into the 9-pin serial port on the back of the computer and then connect the other end of the serial console cable into the serial console port on the router 1841.
Step2. Select the "Start" button on Windows XP and then select "All Programs" in the menu that appears. Then select "Accessories."
Step3.Choose the "Communications" program group and then select the "Hyperterminal" icon.
Step4. Enter " cisco 1841 pricing" in the window that appears and touch the "Enter" key. Then select the "Connect using:" menu and click the "Com" port that is connected to the Cisco 1841 from the list that displays. Click the "OK" button.
Step5.Select the "Bits per second" menu and then choose "9600" from the list that appears. Select the "Flow control:" menu and choose "None" in the list that appears. Select the "OK" button.
Step6. Tap the "Enter" key a few times and the Cisco CLI (Command Line Interface) will appear.
Step7.Enter "enable" on the command prompt and then press the "Enter" key. Type the "enable" password if requested and then tap the "Enter" key.
Step8. Type "config t" on the command prompt and then press the "Enter" key. Then type "service dhcp" and press the "Enter" key.
Step9. Type "ipdhcp database ftp://user:password@ip_address/dhcp_logs write-delay 120" except replace the "ip_address " with the FTP server IP address, the "user:password" with the account name and password for the FTP server, cisco 1841 router price list and "dhcp_logs" with the name of the directory where the DHCP logs will be stored on the FTP server. Press the "Enter" key.
Step10. Type "ipdhcp pool pool_name" except replace "pool_name" with a name for the DHCP address pool and then press the "Enter" key. Then type "network 10.0.0.0 255.0.0.0" except replace the "10.0.0.0 255.0.0.0" with the network IP number and subnet mask of the DHCP scope of addresses to be configured for the network.
Step11. Type "dns-server ip_address" except replace "ip_address" with the actual IP address of the DNS server for the network and then press the "Enter" key.
Step12. Type "default-router ip_address" except replace "ip_address" with the default gateway IP address for the network and then press the "Enter" key.
2011年9月30日星期五
Cisco 1800 Series, Business Router for Small to Medium Sized Business/Enterprise
Cisco 1800 Series Integrated Services Routers, the next evolution of the award-winning Cisco 1700 Series modular access routers, own more advantages than the formers. Cisco 1800 series, ideal for small to medium-sized businesses and small enterprise branch offices, cisco 1841 enable businesses to reduce costs by deploying a single, resilient system for fast, secure, delivery of multiple mission-critical business services, including data, security, unified communications, wireless.
Cisco 1800 series router has several models including 1801, 1802, 1803, 1811, 1812, 1841(most popular), 1861, all of them have some common features: a. Designed for small businesses or branch offices and to offer secure wireless networking; b. Multiple performance options based on local, remote, cisco 1800 series or broadband connections; c. Integrated security including encryption and protection against hackers; d. Virtual private networks for linking to partners, suppliers, and remote offices; e. Multiple options for adding reliability and option for reduced costs by using power from network cabling; f. Software upgrades to add new features and functions, and integrated switching capabilities.
Cisco 1800 series router has several models including 1801, 1802, 1803, 1811, 1812, 1841(most popular), 1861. You can check details of every type as follows:
The fixed platform models (1801, 1802, 1803, 1811, 1812) include multiple WAN interface options, plus:
- Up to broadband speeds
- Eight 10/100 Mbps built-in switch ports with optional Power over Ethernet (PoE), for providing DC power to network devices such as IP phones
- Up to 50 VPN tunnels
- Support for wireless local-area network (LAN) standards 802.11a/b/g
The 1841 is a modular platform with a wide range of interface options, plus:
- Up to T1/E1speeds
- Up to four 10/100 Mbps built-in switch ports
- Up to 800 VPN tunnels cisco 1800 series router
- Support for wireless local-area network (LAN) standards 802.11a/b/g
The 1861 is a modular platform built on a fixed base with a wide range of WAN interface options, plus:
- Integrated Cisco Unified Communications Manager Express or Cisco Unified Survivable Remote Site Telephony for call processing
- Cisco Unity Express, for voice messaging and automated attendant
- Integrated LAN switching with Power over Ethernet (PoE) expandable through Cisco Catalyst Switches
- Onboard voice ports for PSTN, PBX, and key system connections
With Cisco 1800 Series integrated services routers; you can lay the foundation for future growth and prepare for voice, video, wireless, and security solutions tomorrow. 1800 series router
If you want to know more about e about the certain type of Cisco 1800 series, you can visit the list of Cisco 1800 router series, prices also offered.
Cisco 1800 Series Models Details…
| 1800 Series Model | Key Benefits | Type of Connection | Numberof VPN Users |
| 1801 | Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices | Broadband over traditional phone lines | 50 |
| 1802 | Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices | Broadband over ISDN lines | 50 |
| 1803 | Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices | Broadband | 50 |
| 1811 | Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices | Ethernet, Fast Ethernet | 50 |
| 1812 | Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices | Ethernet, Fast Ethernet | 50 |
| Highly expandable for addition of other network capabilities | Broadband, Ethernet, Fast Ethernet | 800 | |
| 1861 | Modular design allows for addition of other network capabilities | Ethernet, Fast Ethernet | Up to 8 |
2011年9月22日星期四
Cisco 3925 Router Password Recovery
The Cisco 3925 router is part of a family of networking equipment produced by Cisco, which has been a network equipment giant for many years. Used 3925 routers are available on the Internet at reasonable prices, so acquiring one is not difficult. However, if the password is unknown or lost, reconfiguration is impossible until the password is reset or recovered. Cisco has built in a procedure for rescuing lost or forgotten passwords or entering new passwords.
Things You'll Need: Serial to RJ-45 cable; Terminal emulation software
Instructions
1. Connect your computer to the router with the blue serial-to-RJ-45 cable that came with the router. The 9-pin D-shell end connects to your computer's serial port, while the RJ-45 end connects to the console jack on the router. The RJ-45 end resembles a slightly larger telephone jack connector.
2. Turn on your computer and establish a terminal session to the cisco 3825. You can use any terminal emulator, and many are freely available on the Internet. Configure the session settings as follows:
9600 baud
8 data bits
No parity
1 stop bit
No flow control
Plug the router's power cable into an electrical outlet, and as the cisco 3945 boots, you should see the Cisco boot messages. If you don't see any output on your computer's terminal session, check your settings on the session and restart it if necessary. Press "Break" within 30 seconds of powering on the router to enter rommon (rom monitor) mode.
3. Type "confreg 0x2142" and press "Enter" at the "rommon 1" prompt. This will cause the router to boot from its internal flash memory without loading the configuration into memory. At the following "rommon 2" prompt, router cisco type "reset" and press "Enter." This will cause the router to reload and ignore the previously saved configuration file.
4. Respond "no" and press "Enter" when prompted for responses to enter the initial dialog or basic management setup. Type "enable" and press "Enter" at the following "Router>" prompt. This will put you into enable mode and display the "Router#" prompts. Copy the non-volatile memory into memory with the "copy startup-config running-config" command, followed by the "Enter" key. buy cisco router Type "sho run" at the prompt and press "Enter" to display the current configuration, including the passwords, some of which may be encrypted.
5. Type "config t" at the prompt and press "Enter." At the "Router(config)#" prompt, type "enable secret <pswd>" -- where "pswd" is the password -- and press "Enter." At this point, your enable password is reset. Press "Ctrl" + "z" to return to the "Router#" prompt.
2011年9月14日星期三
Cisco 876 Integrated Services Router, Best for Small Office at Low Price
Cisco router 878, a member of Cisco 800/870 series, allows small offices to operate secure concurrent services, including firewall, VPNs, and wireless LANs, at broadband speeds. Easy deployment and centralized management features make the Cisco 870 Series ideal for:
Small offices or teleworker sites as part of an enterprise network
Small and medium-sized businesses for secure WAN and wireless LAN connectivity
The cisco881-k9 router provides the performance needed to run concurrent services, including firewall, intrusion prevention, and encryption for VPNs; optional 802.11b/g for WLAN networking; and quality of service (QoS) features for optimizing voice and video applications. In addition, the cisco 881-k9 and Security Device Manager (SDM) Web-based configuration tool simplifies setup and deployment, and centralized management capabilities give network managers visibility and control of the network configurations at the remote site.
Device TypeRouter - DSL modem - 4-port switch (integrated)
Enclosure TypeDesktop
Digital Signaling Protocol SHDSL
Data Link Protocol Ethernet, Fast Ethernet
Network / Transport Protocol PPTP, L2TP, IPSec, PPPoE, PPPoA
Routing Protocol RIP-1, RIP-2
Remote Management Protocol SNMP, Telnet, HTTP
Features Firewall protection, DHCP support, VPN support, VLAN support, auto-uplink (auto MDI/MDI-X), manageable, IPv6 support, Intrusion Prevention System (IPS)
Compliant Standards IEEE 802.1x
Power AC 120/230 V (50/60 Hz ) cisco 850
Dimensions (WxDxH)26 cm x 21.6 cm x 5.1 cm
Weight 1 kg
Price of CISCO888-K9 Offered Here
If you need to be clear about price of other cisco 4900m series, you can visit or check Cisco 870 at routerswitch.com
With router 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. If you require one, why not select it?
2011年7月26日星期二
WS-C2960G-48TC-L, Cisco Catalyst 2960 Series Intelligent Ethernet Switch
WS-C2960G-48TC-L, one of the most popular Cisco 2960 series switches, catalyst 2960 series switch offers integrated security, including network admission control (NAC), advanced quality of service (QoS), and resiliency to deliver intelligent services for the network edge.
For people who are deciding to buy a WS-C2960G-48TC-L, cisco 2960 price you can refer to the following details and features of WS-C2960G-48TC-L…
| General | |
| Device Type | Switch - 44 ports - Managed |
| Enclosure Type | Rack-mountable - 1U |
| Ports | 44 x 10/100/1000 + 4 x combo Gigabit SFP |
| Performance | Switching capacity : 32 Gbps ¦ Forwarding performance (64-byte packet size) : 39 Mpps |
| MAC Address Table Size | 8K entries 2960 switch price |
| Remote Management Protocol | SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH |
| Encryption Algorithm | SSL |
| Authentication Method | Secure Shell (SSH), RADIUS, TACACS+ |
| Features | Layer 2 switching, auto-sensing per device, dynamic IP address assignment , auto-negotiation, BOOTP support, ARP support, load balancing, cisco 2960G switch VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, Syslog support, DiffServ support, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Unicast Storm Control, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, DHCP snooping, cisco 2960S switch Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Access Control List (ACL) support, Quality of Service (QoS), Link Aggregation Control Protocol (LACP), Port Security, cisco 2960 manual MAC Address Notification, Remote Switch Port Analyzer (RSPAN) |
| Compliant Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, cisco 2960 commands IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ab (LLDP) |
| RAM | 64 MB |
| Flash Memory | 32 MB Flash |
| Status Indicators | |
| Expansion / Connectivity | |
| Interfaces | 48 x 10Base-T/100Base-TX/1000Base-T - RJ-45 ¦ 4 x SFP (mini-GBIC) |
| Power | |
| Power Device | Power supply - internal |
| Voltage Required | AC 120/230 V ( 50/60 Hz ) |
| Power Consumption Operational | 123 Watt |
| Miscellaneous | |
| Width | 44.5 cm |
| Depth | 32.8 cm |
| Height | 4.4 cm |
| Weight | 5.45 kg |
| Rack Mounting Kit | Optional |
| MTBF | 221,432 hour(s) |
| Compliant Standards | CE, TUV GS, CISPR 22 Class A, GOST, BSMI CNS 13438 Class A, CISPR 24, NOM, VCCI Class A ITE, EN55024, cisco 2960 specs CB, EMC, MIC, IEC 60950-1, EN 60950-1, UL 60950-1 Second Edition, RoHS, CSA C22.2 No. 60950-1, FCC Part 15 B Class A switch 2960 |
| Software / System Requirements | |
| Software Included | Cisco LAN Base software |
| Manufacturer Warranty | |
| Service & Support | Limited lifetime warranty |
| Service & Support Details | Limited warranty - lifetime |
| Environmental Parameters | |
| Min Operating Temperature | -5 °C |
| Max Operating Temperature | 40 °C |
| Humidity Range Operating | 10 - 95% (non-condensing) |
| Min Storage Temperature | -25 °C |
| Max Storage Temperature | 70 °C |
| Humidity Range Storage | 10 - 95% (non-condensing) |
More price details
Conditions: New Sealed
List Price: US$2,495.00
Wholesale Price: US$1,123.00
You Save:US$1,372.00 (54.99% OFF)
You Save:US$1,372.00 (54.99% OFF)
Supplier:Yejian Technology/RouterSwitch.com
Tel: +852-3755-6766 (Hong Kong)
Fax: +852-3050-1066 (Hong Kong)
2011年7月20日星期三
Why Buy Used or Refurbished Cisco Equipment?
Recycling, Protecting environment, reducing electronic waste, all these topics are drawing people’s attention. That’s because pollution becomes more serious with the high development of technology and unawareness of saving resources. Actually, if you are ware of being an environment protector, you and take action from everything around you, such as no using plastic bag, planting trees, recycling garbage, reducing e-waste.
So for netizen, if you need to buy network equipment, buying used or refurbished one such as used Cisco should be a good choice.
Compared with new Cisco or other network products, what benefit you can get? Look at the reasons from official refurbished Cisco.
Buying a used Cisco router enables your business to take advantage of breakthrough advances in networking technology - without paying a high price. Unlike ordinary used routers, refurbished network equipment routers from Cisco Certified Refurbished Equipment give you the foundation for an intelligent, resilient network, with industry-leading technologies that can protect your investment and lower your ownership costs.
Purchasing a used Cisco router helps you to put your IT dollars to work even harder. Genuine used Cisco routers can be deployed in training labs, temporary offices or classrooms, used as spare parts or even as non-production assets for disaster recovery. You’ll save more off the list price of equivalent new equipment.
Cisco Certified, 100% inspected, fully licensed, attractively priced, genuine refurbished cisco equipment, etc. all these let you no hesitate to choose a used Cisco. So buying used Cisco to green our environment.
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