Note The Catalyst 2926 series switches include the Catalyst 2926T switch and Catalyst 2926F switch. The Catalyst 2926G series switches include the Catalyst 2926GS switch and Catalyst 2926GL switch. Throughout this guide, "Catalyst 2926 and Catalyst 2926G series switches" refers to all Catalyst 2926 and Catalyst 2926G series switches.
The Catalyst 2926 series switch fits into a standard 19-inch (48.3-centimeter) rack, and all system connections are accessible from the rear of the chassis. The system includes the following:
The supervisor engine performs the following functions:
Controls data access to the backplane, prioritizes traffic, maintains up to 16,000 active Media Access Control (MAC) addresses in the bridge lookup table, and monitors system status
Provides a common management path (separate from the data path) that delivers configuration information for the module, gathers performance information, and updates operational software information
Supports up to 1000 virtual local-area networks (VLANs) network wide
Figure 1-1 shows the Catalyst 2926 series switch with 155W power supply. Figure 1-2 shows the Catalyst 2926 series switch with 175W power supply with power factor correction (PFC). (Catalyst 2926T switch shown in both figures.)
The Catalyst 2926G series switch is available in two models:
Catalyst 2926GS switch---1000BaseSX uplink ports with shortwave fiber transceivers
Catalyst 2926GL switch---1000BaseLX/LH uplink ports with longwave/long-haul fiber transceivers
The Catalyst 2926G series switch fits into a standard 19-inch (48.3-centimeter) rack, and all system connections are accessible from the rear of the chassis. (See Figure 1-3.) The system includes the following:
Supervisor engine that provides hardware support for up to 1024 VLANs, two Flash PC card slots, dual 1000BaseSX or 1000BaseLX/LH ports, and a NetFlow Feature Card (NFFC)
Note Throughout this publication, the term PC card is used in place of the term PCMCIA card.
24 10/100-Mbps Fast Ethernet autosensing switched ports that support inline rewrite for Layer 3 switching
Dual, load-sharing, redundant AC-input power supplies that provide uninterrupted system operation
Catalyst 2926 and Catalyst 2926G series switches offer network management and control through the CLI or alternative methods, such as CiscoWorks for Switched Internetworks (CWSI) and Simple Network Management Protocol (SNMP). The Catalyst 2926 and Catalyst 2926G series software supports these network management features:
Note EIA/TIA-232 was known as the recommended standard RS-232 before its acceptance as a standard by the Electronics Industries Association (EIA) and Telecommunications Industry Association (TIA).
SNMP management---This protocol facilitates the exchange of management information between network devices.
NVRAM---Nonvolatile random-access memory (NVRAM) allows you to store configuration data and software images.