to tepatel

zcyzaw · ‎03-23-2003

I want to connect to them by frame-relay or ddn,dial-in line as backup line .Bei jing as central. Shang Hai and Tian jing as branch office.If I use frame-relay ,I use point-to-multipoint to connect them .I want to let them to go to internet by Bei Jing.I don't know how to select csu/dsu equipment .please help me !I will thanks a lot!

vmiller · ‎03-23-2003

have a seperate router/firewall for access to the internet.

shanghi--------->beijing (headend router) -----fasthethernet---firewall---internet.

If you have a local Cisco office they can help with the DSU/CSU selection that

could be built into the router. this works will with frame relay.

tepatel · ‎03-23-2003

You can use WIC-1DSU-T1 card which has built in CSU/DSU for T1 circuit.

Pl. visit following url for that

http://www.cisco.com/warp/public/107/wic-1dsu-t1.shtml

zcyzaw · ‎03-23-2003

I have set 2610 series router in beijing.I have set 1721 series router in Shang hai and Tian jing.I select DTU2602 as csu/dsu ,because I need 128k bandwidth,Do you think it is able to do ?please give me my answer.