September 3, 2010

Routers

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router1Routers 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
Cisco PVDM2-32 32 Channel Voice/Fax DSP Module 1Mth Wty
Paypal   US $317.94
Cisco 3750G WS-C3750G-24T-E Gigabit Switch Invoice+Wty
Cisco 3750G WS-C3750G-24T-E Gigabit Switch Invoice+Wty
Paypal   US $2,407.26
Cisco 1841 Router 2 FE 1 VPN CCNA CCNP 1MthWty QtyAvail
Cisco 1841 Router 2 FE 1 VPN CCNA CCNP 1MthWty QtyAvail
Paypal   US $617.71
Cisco WS-C3750-24TS-S Switch 24 port 3750 1 MtnWarranty
Cisco WS-C3750-24TS-S Switch 24 port 3750 1 MtnWarranty
Paypal   US $1,498.86
++ CISCO ++ USED NPE-400-512MB memory NPE-400
++ CISCO ++ USED NPE-400-512MB memory NPE-400
Paypal   US $750.00
CISCO 2610 (CISCO2610) Router *** Lot of 2 ***
CISCO 2610 (CISCO2610) Router *** Lot of 2 ***
Paypal   US $39.99
++Cisco++Original 3640 AC Power Supply PWR-3640-AC
++Cisco++Original 3640 AC Power Supply PWR-3640-AC
Paypal   US $10.00
+CISCO+ USED AIM-VPN/EPII-PLUS  Module  AIM-VPN/EPII
+CISCO+ USED AIM-VPN/EPII-PLUS Module AIM-VPN/EPII
Paypal   US $20.00
Cisco 802 Router without Power Cable
Cisco 802 Router without Power Cable
Paypal   US $29.99
Adtran Atlas 550 3x 8 FXS 1x Nx 56/64 1x T1 1200305L1
Adtran Atlas 550 3x 8 FXS 1x Nx 56/64 1x T1 1200305L1
Paypal   US $195.00
CISCO Used Geniune VWIC-2MFT-T1 2MFT T1 MODULE hologram
CISCO Used Geniune VWIC-2MFT-T1 2MFT T1 MODULE hologram
Paypal   US $400.00
++CISCO++ ORI ESR-1GE 1 pt Gigabit Ethernet Line Card
++CISCO++ ORI ESR-1GE 1 pt Gigabit Ethernet Line Card
Paypal   US $900.00
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