Cisco NAC Appliance 3355 Server Failover Bundle -max 1500 users

Popis produktu:

Catalyst 2960S 48 GigE, 2 x SFP LAN Lite

Highlights
o Managed Basic L2 edge switch
o 24 or 48 ports of Gigabit Ethernet desktop connectivity
o 2 One Gigabit Ethernet SFP ports
o Enhanced troubleshooting for problem solving, including link connectivity and cable diagnostics
o Limited lifetime hardware warranty, including next-business-day replacement with 90-day service and support
o VLANs (802.1q), 802.1p, Etherchannels (PAgP, LACP), UDLD, CDP/LLDP, DTP, VTP, IGMP snooping, storm-control, Spanning-Tree, 802.1x, SPAN, SNMP, SSH/telnet, …



Datasheet:
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/product_data_sheet0900aecd806b0bd8.html




Cisco Catalyst Smart Operations
o Cisco Smart Install is a transparent plug-and-play technology to configure the Cisco IOS Software image and switch configuration without user intervention. Smart Install utilizes dynamic IP address allocation and the assistance of other switches to facilitate installation providing transparent network plug and play.
o Cisco Auto Smartports provide automatic configuration as devices connect to the switch port, allowing auto detection and plug and play of the device onto the network.

Easy to Use Deployment and Control Features
o Auto-negotiation on all ports automatically selects half- or full-duplex transmission mode to optimize bandwidth.
o Dynamic Trunking Protocol (DTP) facilitates dynamic trunk configuration across all switch ports.
o Port Aggregation Protocol (PAgP) automates the creation of Cisco Fast EtherChannel® groups or Gigabit EtherChannel groups to link to another switch, router, or server.
o Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling with devices that conform to IEEE 802.3ad. This feature is similar to Cisco EtherChannel technology and PAgP.
o Automatic media-dependent interface crossover (MDIX) automatically adjusts transmit and receive pairs if an incorrect cable type (crossover or straight-through) is installed.
o Unidirectional Link Detection Protocol (UDLD) and Aggressive UDLD allow unidirectional links caused by incorrect fiber-optic wiring or port faults to be detected and disabled on fiber-optic interfaces.
o Dynamic Host Configuration Protocol (DHCP) autoconfiguration of multiple switches through a boot server eases switch deployment.
o Switching Database Manager (SDM) templates for access, routing, and VLAN deployment allow the administrator to easily maximize memory allocation to the desired features based on deployment-specific requirements.
o Local Proxy Address Resolution Protocol (ARP) works in conjunction with Private VLAN Edge to minimize broadcasts and maximize available bandwidth.
o Internet Group Management Protocol (IGMP) Snooping for IPv4 and IPv6 MLD v1 and v2 Snooping provide fast client joins and leaves of multicast streams and limit bandwidth-intensive video traffic to only the requestors.
o Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall systems performance.
o Voice VLAN simplifies telephony installations by keeping voice traffic on a separate VLAN for easier administration and troubleshooting.
o Cisco VLAN Trunking Protocol (VTP) supports dynamic VLANs and dynamic trunk configuration across all switches.
o Switch Port Analyzer (SPAN) allows administrators to monitor ports in a Layer 2 switch network from any other switch in the same network.
For enhanced traffic management, monitoring, and analysis, the Embedded Remote Monitoring (RMON) software agent supports four RMON groups (history, statistics, alarms, and events).
o Trivial File Transfer Protocol (TFTP) reduces the cost of administering software upgrades by downloading from a centralized location.
o Network Timing Protocol (NTP) provides an accurate and consistent timestamp to all intranet switches.
o Cisco Emergency Responder (CER) enhances emergency calling from Cisco Unified CallManager. It helps assure that Cisco Unified CallManager sends emergency calls to the appropriate Public Safety Answering Point (PSAP) for the caller's location.

Borderless Security
o Basic Cisco TrustSec
o MAC Auth Bypass (MAB) for voice allows third-party IP phones without an 802.1X supplicant to get authenticated using their MAC address.
o Port security can be used to limit access on an Ethernet port based on the MAC address of the device to which it is connected. It also can be used to limit the total number of devices plugged into a switch port, thereby protecting the switch from a MAC flooding attack as well as reducing the risks posed by rogue wireless access points or hubs.
o The MAC Address Notification feature can be used to monitor the network and track users by sending an alert to a management station so that network administrators know when and where users enter the network.
o Secure Shell (SSH) Protocol v2 and Simple Network Management Protocol (SNMP) v3 provide network security by encrypting administrator traffic during Telnet and SNMP sessions. SSH v2 and the cryptographic version of SNMP v3 require a special cryptographic software image because of U.S. export restrictions.

Borderless Experience
o IEEE 802.1s/w Rapid Spanning Tree Protocol (RSTP) and Multiple Spanning Tree Protocol (MSTP) provide rapid spanning-tree convergence independent of spanning-tree timers and also offers the benefit of Layer 2 load balancing and distributed processing.
o Per-VLAN Rapid Spanning Tree (PVRST+) allows rapid spanning-tree reconvergence on a per-VLAN spanning-tree basis, without requiring the implementation of spanning-tree instances.
o Switch-port autorecovery (Errdisable) automatically attempts to reactivate a link that is disabled because of a network error.
o Up to 64 VLANs and up to 64 spanning-tree instances per switch are supported.
o 802.1p class of service (CoS) classification provides differentiated services when best-effort traffic delivery is insufficient.
o Four egress queues per port help enable differentiated management of different traffic types across the stack.
o Shaped Round Robin (SRR) scheduling helps ensure differential prioritization of packet flows by intelligently servicing the ingress queues and egress queues.
o Weighted Tail Drop (WTD) provides congestion avoidance at the ingress and egress queues before a disruption occurs.

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