Identifying Router Components and Accessories

The early 90 's, modular business network equipment of Cisco equipment on the new policy. In the past, and series router Cisco 2,500, excluding 2524 has fixed port configuration, serial over Ethernet, token ring, ISDN, and terminal line, in such a way that it imposed a limited network of investment protection and scalability of business networks.

Announcement and release of the Cisco 3,600 series routers in 1996, enterprise investment protection that they do not feel relief is by replacing the entire router when you upgrade WAN and LAN link aggregation. Companies can easily from WIC (WAN interface modules) to Exchange migration using ISDN lines to a T1 line, and the LAN ports to upgrade to 10/100Tx and from 10Base-t nm (network module) changes.

Cisco announced in March 1998, 2,600 series routers are Cisco systems, to provide security of engineered wire-speed delivery of new generation multiservice routers also provide voice, data, video and wireless services, the next milestone. However, Cisco 2,600 platforms lacking which upset some network engineers in the industry as a whole it is the PCMCIA Flash card slots in a feature of the Cisco series routers provide 3,600. Engineers familiar with the 3,600 platforms found in the disaster recovery process recovery profiles, as well as the IOS image is simple with PCMCIA Flash memory card changes.

Around the same time as Cisco announced 2,600 series including 3,725 and 3,745-series platform. These platforms is Cisco equipment major stepping stone in architecture, because of platforms introduced removable Compact Flash (CF) memory card used with digital viewfinder. Even today, equipment such as, 2,800 series ISR (integrated services router), ASA 5,500 series firewalls and countless other platforms have been designed to take advantage of Compact Flash card (CF). Speed of the CF card to prove several times faster than previous technologies, using Cisco equipment is more flexible.

In May 2002, Cisco introduced Cisco 2600XM series multi-service router system architecture contains several upgraded features, such as the current Motorola processor, integrated in the revised edition of the 125 MHZ SDRAM 16 MB of Flash memory and 48 MB, maximum Flash and 128 MB RAM support.

Later, version 12.2 (8R) network cards PXE boot ROM, physical 2600XM series multiservice routers supporting 256 MB RAM. However, when first introduced in 12.2 (8R) it only provides "future-ability" using 256 MB of RAM. However in the given Cisco IOS 2600XM that is still limited to 128 MB RAM, 256 MB RAM, and 12.2 (8R) NIC PXE boot ROM network cards are the benefits of starting chips will extract the Cisco IOS image to fail to get IOS kernel address space. Traditionally image becomes greater contraction of processor addressable memory space as images are extracted and loaded into memory after booting (different from the 2500 series, runs directly from Flash) 2600XM platform which gives a significant performance boot-2600XM on platforms. When upgrades are offered, using 256 MB of RAM 2600XM platform gives you additional 50-60 MB or so of extracting image processor addressable memory is not residing in the IOS. If you have 256 MB RAM to run 12.3T on the show memory command, you will see the process should have 128 MB of address space is available. After October 2004 release of IOS version capable of handling a full 256 MB RAM minus uncompressed images.

2600XM also publishes Cisco 2,691 router and it is the fastest platform in the 2600 series. Designed with higher throughput, scalability, and bearing in mind the versatility. Cisco series routers are Cisco 2,691 series router's brother. Side-by-side comparison, they looked very similar however performance and modular design, and the price difference.

1800, 2800, and 3,800 series routers support HWIC (high-speed WAN adapter card), WIC technology previously only supports 8Mbps aggregates each PCI bus supports 400Mbps aggregations (shared across all sockets).

Example; 2600XM series has two integrated WIC slot on the shared bus. 2600XM supports 8Mbps speed runs of individual WIC 2T port port/4Mbps, but due to the shared bus, you cannot use the other WIC slot. This restriction also applies to the NM -1FE2W, NM -1FE1R2W, NM and -2FE2W nm -2W network module.

2,800 series ISR routers (excluding 2801) has four HWIC slots supports 400Mbps aggregations (400Mbps all slots on each chassis) and one or more (enhanced network module) NME slot within the cross-platform shared 1.2Gbps all slots in the business, while its predecessor; network module can only cross-platform shared by all network module slot for up to 600mbps of speed.