Router Cisco 2811

The Cisco 2800 Series provides significant additional value compared to prior generations of Cisco routers at similar price points by offering up to a fivefold performance improvement, up to a tenfold increase in security and voice performance, new embedded service options, and dramatically increased slot performance and density while maintaining support for most of the more than 90 existing modules that are available today for the Cisco 1700, Cisco 2600, and Cisco 3700 Series. The Cisco 2800 Series features the ability to deliver multiple high-quality simultaneous services at wire speed up to multiple T1/E1/xDSL connections. The routers offer embedded encryption acceleration and on the motherboard voice digital-signal-processor (DSP) slots; intrusion prevention system (IPS) and firewall functions; optional integrated call processing and voice mail support; high-density interfaces for a wide range of connectivity requirements; and sufficient performance and slot density for future network expansion requirements and advanced applications.

Product Description Cisco 2811 Integrated Services Router - router
Device Type Router
Form Factor External - modular - 1 U
Dimensions (WxDxH) 43.8 cm x 41.7 cm x 4.5 cm
Weight 6.4 kg
RAM 256 Mb (installed) / 760 Mb (max) - DDR SDRAM
FLASH Memory 64 Mb (installed) / 256 Mb (max)
Data Link Protocol Ethernet, Fast Ethernet
Network / Transport Protocol IPsec
Remote Management Protocol SNMP 3
Features Modular design, firewall protection, 128-BIT encryption, hardware encryption, VPN, MPLS support, URL filtering, 256-BIT encryption
Power AC 110/230 V ( 50/60 Hz )

Moduł WIC-2T

The dual-serial port WAN interface cards (WICs) for the Cisco 2600 and 1700 series feature Cisco`s new, compact, high-density Smart Serial connector to support a wide variety of electrical interfaces when used with the appropriate transition cable. Two cables are required to support the two ports on the WIC. Each port on a WIC is a different physical interface and can support different protocols such as Point-to-Point protocol (PPP) or Frame Relay and Data Terminal Equipment/Data Communications Equipment (DTE/DCE).

The WIC-2T provides two serial ports using the Smart Serial connector.
I) Asynchronous support with a maximum speed (per port) of 115.2 Kbps, minimum 600 bps. If you need to run at speeds lower than 600 bps, use the AUX port instead.
II) Synchronous support with a maximum speed of 8 Mbps per port.
a) Supports one port at 8 Mbps when used in NM-1FE1R2W, NM-1FE2W, NM-2FE2W, or NM-2W, or Cisco 2600 chassis WIC slots. All other WIC ports on that network module or Cisco 2600 chassis must not be used.
b) Supports two ports at 4 Mbps each when used in NM-1FE1R2W, NM-1FE2W, NM-2FE2W, or NM-2W, or Cisco 2600 chassis WIC slots. All other WIC ports on that network module or Cisco 2600 chassis must not be used.
c) Supports 8 Mbps on all ports simultaneously on 2691, 3725, and 3745. No restrictions. Maximum six ports at 8 Mbps each.
Note: The X.21 interface protocol is not recommended for clock rates beyond 4 MHz. For clock rates beyond 4 MHz, V.35 interface is recommended.

Switch Catalyst 2600 24x100Mbps, 2x1Gbps

Integration of a Catalyst 2600 in your Token Ring network can relieve network stress and improve performance. The architecture of the Catalyst 2600 centers around the AXIS bus, a 512 Mbps switching fabric through which all switched ports communicate. To avoid the congestion problems that can occur when multiple ports communicate with a single port, each port has 512 KB of buffering, fairness algorithms, and split-buffer schemes. To address the needs of delay-sensitive data, such as multimedia, this switching fabric contains two data queues. Frames assigned a priority of 5, 6, or 7, such as audio transmissions, are sent to the high-priority queue and given forwarding preference. Frames assigned a priority of 4 or lower are processed through the normal-priority queue. To provide increased bandwidth, you can use the Catalyst 2600 to create multiple, concurrent paths among connected segments, each path supporting the full,16-Mbps Token Ring bandwidth. With a parallel internal design optimized for performance, the Catalyst 2600 can forward Token Ring frames between each of the pairs of ports simultaneously and at media speeds. In addition, you can select from three modes of operation for each port on the Catalyst 2600. In cut-through mode, the Catalyst 2600 begins forwarding frames as they are received; it does not wait to receive the entire packet before forwarding. This provides the benefits of dedicated-media, high-speed switching. Store-and-forward mode offers more error isolation between the segments, as the Catalyst 2600 waits until the entire frame is received and checked for errors before forwarding. Adaptive cut-through mode optimizes performance by alternating between cut-through and store-and-forward modes based on user-specified thresholds.

The Catalyst 2600 can be easily integrated into your existing network, as it is transparent to high-level protocols and provides:
I) A fully-functional default configuration that will accommodate many current network configurations. This configuration can be easily customized via console configuration.
II) Automatic learning of network configuration.
III) Automatic sensing and configuring of ports. The Catalyst 2600 will automatically sense the type of Token Ring connection being employed on each of its ports, whether the connection is:
a) To a shared-media segment (via a Token Ring concentrator), to a dedicated-media segment (directly to a Token Ring LAN station), or to another Token Ring switch. Proper polarity for the connection is automatically determined. Therefore, no special cross-over cables are required for Token Ring stations on dedicated-media segments or for switch-to-switch connections; these connections use the same cabling used to connect the Catalyst 2600 port to shared media segments.
b) Operating at 4 Mbps or at 16 Mbps
c) Operating in half-duplex (HDX) or full-duplex (FDX) mode. The Catalyst 2600 will automatically configure each port to operate at the highest level of capability possible.
If desired, this auto-sense/auto-configure capability of the Catalyst 2600 can be overridden by explicit console configuration.
IV) A factory-assigned station, or MAC, address. The Catalyst 2600 can also be configured with an IP address.