2015年5月22日星期五

About router, switch and modem in future

Wireless router:
1 All of wireless routers, the WAN port will all support 1000Mbps rate, because the wireless function on the router all support IEEE802.11n 300Mbps max at least.
But LAN ports on the wireless routers, will be still 10~100Mbps rate.
2 All of wireless routers, will support both IPv6 and IPv4. But in default, the IPv6 function will be not opened.
3 If the router's main chip will be same, most of the time the firmware will be common.

All of routers will increase these function:
Internal network host can be forwarded to external network:
1 In the settings page of a router, user can appoint some internal network hosts can be forwarded to external network.
2 Maybe can appoint 5 internal network hosts to be forwarded to external network.
3 User can appoint each of the LAN ports on the router, and can appoint a WIFI equipment (when connecting the router), to be forwarded to external network.
4 Router's user can set a password for external network visit the forwarded internal network host. If have been setted the password, when in the external network to visit a forwarded internal network host, should enter the password.
5 For example: If a internal network host will be forwarded to external network, in the external network, user can user any equipment (x86 PC, tabletpc, phone, set-top-box etc.) and enter these: "x.x.x.x/x ("x.x.x.x" means the router's IP address on the external network, "/x" means router's user appoint a name which a host be forwarded)", can visit the forwarded internal network host.
6 This function can be used for: In the external network to visit a network camera (Ethernet or WIFI) on a internal network, Build a web server (or FTP server, Streaming media server, etc.) on the internal network for external network to visit, etc.

Can use the router to login a wireless hotspot, and use Ethernet ports on the router to share it:
All of routers will have another operation mode: Can use the WIFI function on the router to connect a wireless hotspot, and will use Ethernet ports (LAN ports) to visit the external network (on the wireless hotspot).


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3G or 4G wireless routers in future:
All of 3G or 4G wireless routers, have a USB2.0 port (Micro USB port), for DC5V power supply, and can be used as a USB 3G/4G adapter.
Have one SIM card slot (Many of also support Mini SIM, Micro SIM etc.)
The WIFI function support IEEE802.11b/g/n 300Mbps max.
Have a 1000Mbps rate WAN port.
Have one or two LAN port (10~100Mbps rate)
Have all of anyother functions as anyother wireless routers.
All of support Lithium ion battery for power supply. Some of have a battery compartment (maybe use BL5C Lithium ion battery), some of have internal Lithium ion battery, some of have a large capacity internal Lithium ion battery and have mobile power function.

Smart wireless routers:
The price of smart wireless routers, will be reduced more.
All of smart wireless routers, have these features:
Have a MIPS or ARM CPU in the main chip of the router. And the CPU have 128KB L2 cache.
All have 128MB DDR3 RAM.
Have a NAND flash for saving firmware and setting, and user can install some applications (for Linux) on the NAND flash.
All of the main chips, support 2* USB2.0, 2* SATA2.0, one SDcard reader, some PCI-E x1 bus etc.
All have a USB2.0 port, many of have a eSATA and USB2.0 2in1 port.
All have a SD card reader (some of will be TF card reader).
User can install applications to the SD card.
All of the firmwares, use Linux kernel, and support to install some applications for Linux (command line applications only).


All of low-grade switches (for home use) have router function:
1 In future, most of low-grade switches will have router function and DHCP server function.
2 Most of low-grade switches will have one 1000Mbps WAN port (if support router function). But each LAN ports will be still 10~100Mbps.
3 All of LAN ports on the switch also support Up-link function.
4 User can choose to open or close the router function and DHCP server function on the switch.
5 If user close the router function, the switch will also have opened DHCP server function, but now user can close DHCP server function.
6 All of low-grade switches, at least have 12 LAN ports.
7 Although most of low-grade switches will have router function, but the cost of the switches will be unchanged.
8 Some of low-grade switches have wireless router function, support IEEE802.11b/g/n 300Mbps max. Some of not have wireless router function.


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