Routers connect two or more logical subnets, which do not necessarily map one-to-one to the physical interfaces of the router. The term "layer 3 switch" often is used interchangeably with router, but switch is a general term without a rigorous technical definition. In marketing usage, it is generally optimized for Ethernet LAN interfaces and may not have other physical interface types. In comparison a network hub does not do any routing, instead every packet it receives on one network line gets forwarded to the other network lines.

Cisco is the world largest supplier of network routers as well as the most known.

Cisco PVDM2-32 32 Channel Voice/Fax DSP Module 1Mth Wty    US $317.94

Cisco 3750G WS-C3750G-24T-E Gigabit Switch Invoice+Wty    US $2,407.26

Cisco 1841 Router 2 FE 1 VPN CCNA CCNP 1MthWty QtyAvail    US $617.71

Cisco WS-C3750-24TS-S Switch 24 port 3750 1 MtnWarranty    US $1,498.86

++ CISCO ++ USED NPE-400-512MB memory NPE-400    US $750.00

CISCO 2610 (CISCO2610) Router *** Lot of 2 ***    US $39.99

++Cisco++Original 3640 AC Power Supply PWR-3640-AC    US $10.00

+CISCO+ USED AIM-VPN/EPII-PLUS Module AIM-VPN/EPII    US $20.00

Cisco 802 Router without Power Cable    US $29.99

Adtran Atlas 550 3x 8 FXS 1x Nx 56/64 1x T1 1200305L1    US $195.00

CISCO Used Geniune VWIC-2MFT-T1 2MFT T1 MODULE hologram    US $400.00

++CISCO++ ORI ESR-1GE 1 pt Gigabit Ethernet Line Card    US $900.00

View Page:   1  2

Related posts:

1. Linux on Cisco Routers? Get Ready for AXP!