Grundlegende Informationen.
Network Site
Intermediate Node Routers
Transfer Rate
10/100/1000Mbps
Firewall
Without Firewall
Application
Enterprise, SOHO
Performance
Non Line Speed Router
Architecture
Crossbar System
Produktbeschreibung
We can provide Below items with competitive prices:
| CISCO SWITCH types |
| WS-C2918-24TC-C |
| WS-C2918-48TC-C |
| WS-C2918-48TT-C |
| WS-C2960-48TC-L |
| WS-C2960S-48TS-L |
| WS-C2960S-24TD-L |
| WS-C2960X-24TD-L |
| WS-C2960-24PC-S |
| WS-C2960X-48TS-LL |
| WS-C2960S-48FPS-L |
| WS-C2960S-48LPS-L |
| WS-C2960-48PST-L |
| WS-C2960-48PST-S-RF |
| WS-C2960+24TC-S |
| WS-C2960+48TC-S |
| C2960X-STACK= |
| |
| 3560 Series |
| WS-C3560V2-24TS-S |
| WS-C3560X-24T-L |
| WS-C3560X-48T-S |
| WS-C3560X-48T-L |
| WS-C3560X-24T-S |
| WS-C3560X-24T-S |
| WS-C3560X-24T-S-RF |
| WS-C3560X-48P-L |
| |
| 37 series |
| WS-C3750G-24T-S |
| WS-C3750V2-48TS-S-RF |
| WS-C3750V2-48PS-S |
| WS-C3750E-24TD-E |
| WS-C3750E-48TD-E |
| WS-C3750E-48TD-S |
| WS-C3750E-24TD-S |
| WS-C3750X-24S-S |
| WS-C3750X-48T-L |
| WS-C3750X-24P-L |
| WS-C3750X-48P-L |
| WS-C3750X-12S-S |
| |
| 3650 Series |
| WS-C3650-24TS-L |
| WS-C3650-24TS-S |
| WS-C3650-24TS-E |
| WS-C3650-24PS-L |
| WS-C3650-24PS-S |
| WS-C3650-24PS-E |
| WS-C3650-48TS-L |
| WS-C3650-48TS-S |
| WS-C3650-48TS-E |
| WS-C3650-48PS-L |
| WS-C3650-48PS-S |
| WS-C3650-48PS-E |
| |
| 3850 Series |
| WS-C3850-24T-S |
| WS-C3850-48T-S |
| WS-C3850-24P-S |
| WS-C3850-48P-S |
WS-C3850-24T-E |
| WS-C3850-48T-E |
| WS-C3850-48P-E |
The cisco catalyst 2940 series is extremely easy to set up and configure via cisco express setup, a simple web-based setup utility. For more advanced configuration and ongoing management, the cisco catalyst 2940 series has a console port and supports remote management protocols such as telnet, simple network management protocol (snmp), as well as cisco network assistant, which is a free PC-based network management application. Combine this with the rich functionality of cisco ios® Software, and these switches provide comprehensive functionality and manageability for classrooms, conference rooms, or other very small workgroup environments. In addition, the cisco catalyst 2940 series is supported by a limited lifetime warranty. The cisco catalyst 2940 series switches provide the lowest total cost of ownership in their product class with their durable design, enhanced security, simple installation and management, and award-winning cisco support.
Configurations
Cisco catalyst 2940-8tt:
Eight 10/100 ports
One 10/100/1000base-t port
Cisco catalyst 2940-8TF:
Eight 10/100 ports
One 100base-fx port and one 1000base-x small form-factor pluggable (SFP) slot (only one active port at a time)
Accessory
Cisco catalyst 2940 series cable guard
Helps prevent switch theft as well as prevent tampering or removal of ethernet cables
Cisco catalyst 2940 series rack mount
Allows the switch to be secured in cabinets with 19 inch rack mounting
Designed for the end-user environment
The cisco catalyst 2940 switches are designed to be used beyond the wiring closet in the end-user environment. The following features make the switches ideal for classrooms, conference rooms, or very small workgroup environments:
Small form factor: Only 10.6 in. Long and 6.4 in. Deep, this switch fits unobtrusively into tight areas or small cabinets. By using a right-angle power cord, the space required is even further reduced (see figure 5 for size comparison to an electrical outlet).
Durability: An all-metal shell ensures that this switch will not get damaged from incidental blows from furniture or other hardware, as well as mitigates the impact of vandals.
Silent operation: By employing passive cooling instead of a fan or blower, this switch is completely silent and does not disrupt quite workspaces.
Flexible mounting capabilities: The switches can be mounted on a wall, on top of or under a desk or table, or on other surfaces using the mounting slots and the supplied screws (see figure 2). In addition, for easy deployment on metal surfaces not suited for screws, a magnet is included as an additional mounting option. An internal power supply further enhances mounting flexibility because the power cord is not burdened with a large, heavy power brick.
Physical security: A security lock slot located on each side of the switch can be used with a standard cable lock to prevent theft (see figure 3). In addition, the cisco catalyst 2940 series cable guard is available to provide extra security against theft as well as protect the ethernet cables from tampering or removal (see figures 4 and 5).
| Feature | Benefit |
| Ease of Use and Ease of Deployment |
| Autoconfiguration Autosensing Autonegotiating Dynamic Trunking Protocol (DTP) Port Aggregation Protocol (PAgP) and Link Aggregation Control Protocol (LACP) DHCP Relay Default configuration Auto-MDIX (media-dependent interface crossed-over) Express Setup | Switch automatically downloads configuration file using Dynamic Host Configuration Protocol (DHCP). Each non-SFP port detects the speed of the attached device and automatically configures the port for 10-,
100-, or 1000-Mbps operation, easing switch deployment in mixed 10, 100, and 1000BASE-T environments. Each non-SFP port automatically selects half- or full-duplex transmission mode to optimize bandwidth. Switch ports automatically configure as trunks if connected to a trunk port on another switch or router. Switch ports automatically configure as Cisco Fast EtherChannel ® groups or IEEE 802.3ad groups when there are multiple links to another switch, router, or server. Allows a DHCP relay agent to broadcast DHCP requests to the network DHCP server. The switch can be connected to the network and can forward traffic with no configuration. All ports automatically adjust transmit and receive pairs depending on cable type (cross-over or straight-through) connected. Web browser utility allows simple switch set up so that even novices can perform a basic configuration. |
| Availability/Scalability |
Superior Redundancy for Fault Backup
IEEE 802.1D Spanning
Tree Protocol IEEE 802.1w Rapid Spanning Tree Protocol Per-VLAN Rapid Spanning Tree Plus (PVRST+) PortFast UniDirectional Link Detection (UDLD) and Aggressive UDLD Switchport Autorecovery BPDU Guard Spanning Tree Root Guard (STRG) UplinkFast/BackboneFast | Ensures loop-free networks simplifies network configuration and improves fault tolerance. Provides rapid spanning tree convergence independent of spanning tree timers and the benefit of
distributed processing. Allows rapid spanning tree re-convergence on a per-VLAN spanning tree basis, without requiring the implementation of spanning tree instances. Transitions a port directly to forwarding state after linkup, allowing users to connect to the network in 2-3 seconds, rather than waiting ~50 seconds for spanning tree to resolve. Unidirectional links automatically detected and disabled to avoid problems such as spanning tree loops; Aggressive Mode automatically retries the link periodically to see if it has returned to bidirectional. Automatically attempts to re-enable a link that is disabled due to a network error (also known as
"errdisable recovery"). Shuts down Spanning-Tree Protocol PortFast-enabled interfaces when Bridge Protocol Data Units (BPDUs) are received to avoid accidental topology loops. Prevents edge devices not in the network administrator's control from becoming Spanning Tree Protocol root nodes. Ensure quick fail-over recovery enhancing overall network stability and reliability. |
Bandwidth Availability
Per-port broadcast, multicast, and unicast storm control Per VLAN Spanning Tree Plus (PVST+) IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) VLAN Trunking Protocol (VTP) pruning Internet Group Management Protocol (IGMP) Snooping IGMP immediate-leave processing Multicast VLAN Registration (MVR) | Prevents faulty end stations from degrading overall systems performance. Allows for Layer 2 load sharing on redundant links to utilize the full capacity of a redundant design. Allows a spanning tree instance per VLAN, enabling Layer 2 load sharing on redundant links. Limits bandwidth consumption on VTP trunks by limiting broadcast traffic only to trunk links required to reach the destination devices. Provides bandwidth-intensive multicast traffic to only the requestors, rather than flooding all ports. Support for IGMP version 1 and 2. Faster than normal multicast leave processing, this prunes out unnecessary multicast traffic immediately after a leave request. Allows multicast streams in a single networkwide multicast VLAN while subscribers remain in separate VLANs for bandwidth and security reasons. |
| Quality of Service/Control |
Advanced Quality of Service
Honor 802.1p class of service (CoS) Mark/override 802.1P CoS per port 4 egress queues per port Weighted Round Robin (WRR) scheduling Strict Priority scheduling | Ability to prioritize traffic and put it in different queues. Network administrator can enforce QoS policies, and prevent users from abusing QoS settings. Enables network traffic to be put into 4 different queues, depending on the CoS priority. High priority queues can be allocated more time to send traffic. However, WRR also ensures lower priority queues are not neglected. Guarantees that the highest-priority packets are serviced ahead of all other traffic. Particularly useful
for time-sensitive applications like voice over IP. |
| Security |
Network Management Security
VLAN1 minimization TACACS+ and RADIUS Authentication Multilevel management levels Secure Shell v2 | Allows VLAN1 to be disabled on any individual VLAN trunk link. Terminal Access Controller Access Control System Plus (TACACS+) and Remote Authentication Dial-In User Service (RADIUS) authentication enable centralized control of switch administration and management. Allows for 15 levels of switch management authorization, ranging from read-only to full read/write capabilities. SSHv2 provides network security by encrypting administrator traffic during Telnet sessions. SSHv2 requires a special cryptographic software image because of U.S. export restrictions. |
Network Edge Security
IEEE 802.1x IEEE 802.1x with VLAN assignment IEEE 802.1x with Guest VLAN IEEE 802.1x and port security IEEE 802.1x with voice VLAN Private VLAN Edge SPAN for IDS MAC address notification Port security Autotrusted boundary IGMP filtering Dynamic VLAN Assignment | Allows dynamic, port-based security, providing user authentication. Allows a dynamic VLAN assignment for a specific user regardless of where the user is connected. Allows guests without 802.1x clients to have limited network access on the guest VLAN. Provided to authenticate the port and manage network access for all MAC addresses, including those of the client. Permits an IP phone to access the voice VLAN irrespective of the authorized or unauthorized state of the port. Provides security and isolation between switch ports, which helps ensure that users cannot snoop on other users' traffic. Bidirectional data support on the Switched Port Analyzer (SPAN) port allows Cisco Secure Intrusion Detection System (IDS) to take action when an intruder is detected. Allows administrators to be notified of users added to or removed from the network. Good for tracking location of users or stolen laptops. Secures the access to an access or trunk port based on MAC address. After a specific timeframe, the aging feature removes the MAC address from the switch to allow another device to connect to the same port. Ability to trust the QoS priority settings if an IP phone is present and to disable the trust setting in the event that the IP phone is removed, thereby preventing a malicious user from overriding prioritization policies in the network. Provides multicast authentication by filtering out non-subscribers and limits the number of concurrent multicast streams available per port. Using VLAN Membership Policy Server (VMPS) client functionality, ports can be assigned to VLANs based on the MAC address connected to the port or a user login (using the CiscoWorks User Registration Tool). |
| Manageability |
Superior Manageability
SNMPv1/2/3 (non-crypto) and robust MIB support Cisco IOS CLI Telnet and console access Service Assurance Agent (SAA) 802.1q VLANs Voice VLAN VTP Remote Monitoring (RMON) Layer 2 Traceroute Switch Port Analyzer (SPAN) port Trivial File Transfer Protocol (TFTP) Network Time Protocol (NTP) Multifunction LEDs per port Switch-level Status LEDs | Enables full management of switches via standard network management tools. Provides common user interface and command set with all Cisco routers and Cisco Catalyst desktop switches, minimizing training costs. Telnet provides comprehensive remote in-band management, while console port enables out-of-band management. Facilitates service-level management by providing network response time measurements. Up to 128 802.1Q VLANs per switch, as well as 4096 VLAN IDs. Any port can be a VLAN trunk port. Simplifies IP telephony installations by keeping voice traffic on a separate VLAN for easier administration and troubleshooting. Propogates VLAN and trunk configuration across all switches in the network. For enhanced traffic management, monitoring, and analysis, the Embedded Remote Monitoring (RMON) software agent supports 4 RMON groups (history, statistics, alarms, and events). All 9 RMON groups are supported when using SPAN to mirror traffic to an RMON probe or network analyzer. Eases troubleshooting by identifying the physical path that a packet takes from source to destination. Mirrors traffic from a port or group of ports to a single destination port, where a network analyzer or RMON probe can be connected. 1 SPAN session only. Reduces the cost of administering software upgrades by downloading from a centralized server. Provides an accurate and consistent timestamp to all intranet switches. For port up/down status; half-duplex and full-duplex mode; and 10BASE-T, 100BASE-TX, and 1000BASE-T indication. Provides easy visual indication of system integrity status. |
Cisco Network Assistant is a no-charge Windows-based application that simplifies the administration of networks of up to 250 users. It supports a wide range of Cisco Catalyst intelligent switches. With Cisco Network Assistant, users can manage Cisco Catalyst switches and launch the device managers of Cisco Integrated Services Routers and Cisco Aironet wireless LAN access points. The easy-to-use graphical interface provides both a topology map and front-panel view of the community and stacks. Cisco AVVID (Architecture for Voice, Video, and Integrated Data) wizards need just a few user inputs to automatically configure the switch to optimally handle different types of traffic: voice, video, multicast, and high-priority data. A security wizard is provided to restrict unauthorized access to applications, servers, and networks. Upgrading the Cisco IOS software on Cisco Catalyst switches is a simple matter of drag-and-drop upgrades. Cisco Network Assistant supports multilayer feature configurations such as routing protocols, ACLs, and QoS parameters Multi-device and multi-port configuration capabilities allow administrators to save time by configuring features across multiple switches and ports simultaneously. The user-personalized interface allows modification of polling intervals, table views, and other settings Alarm notification provides automated e-mail notification of network errors and alarm thresholds. Cisco Express Setup
Express Setup simplifies initial configuration of a switch through a Web browser, eliminating the need for more complex terminal emulation programs and CLI knowledge The Web interface enables less-skilled personnel to quickly and simply set up switches, thereby reducing the cost of deployment. |
CiscoWorks Support
Supported by CiscoWorks LAN Management Solution (LMS), Access Control Server (ACS), Small Network Management Solution (SNMS), and CiscoWorks for Windows Cisco Discovery Protocol (CDP) v1, v2 | CiscoWorks network-management software provides management capabilities on a per-port and per-switch basis, providing a common management interface for all Cisco routers, switches, hubs, and other Cisco devices. The CiscoWorks tools save time and reduce human errors. Enable a CiscoWorks network-management station to automatically discover and map switches. |
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Die Anschrift:
B1502, Qiangyouxincheng, Haidian District, Beijing, China
Unternehmensart:
Sonstiges
Geschäftsbereich:
Computerartikel, Sicherheit und Schutz, Werkzeug
Zertifizierung des Managementsystems:
ISO 9001
Firmenvorstellung:
CORE-NET INT′L CO LIMITED – Ihr Global IT Solutions Expert und Co-Partner, ein überseetauglicher Anbieter von PCITC (Petro-Cyber Works Information Technology Company Limited).
Unser Unternehmen wurde 2002 gegründet und ist einer der ersten Cisco Vertriebspartner in China. Nach vielen Jahren des Geschäfts und Betriebs bieten wir mit hervorragenden Produkten und perfekte After-Sales-technische Unterstützung Dienstleistungen für in-und ausländische Kunden, so gewinnen einen guten Ruf in unserem Geschäftsbereich.
2010 werden Niederlassungen in Shenzhen und HK eingerichtet. Wir entwickeln uns zu einem umfassenden Unternehmen, das Lagerhaltung, Transport, Import und Export, internationalen Handel und technische Unterstützung. Wir sind nun voll in die Kodinierung, Durchführung und Betrieb von Integrations-IT-Projekten engagiert, mit unserem ständig wachsenden, um besseren Service für Kunden zu liefern, um ihnen zu helfen, maximale Effizienz und Gewinn zu schaffen.
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