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I got a Madge/Initia/Teleos AccessSwitch 20, it seems have 2 T1/PRI line on RS449 interface. I am wondering how I can connect this to my Cisco router's T1 card (RJ45 interface) back to back. There are a seperated PRI/T1 port and Ethernet port (all RJ45 ports) on this thing as well, but I have...

Hi guys! My bad. It is working now. It is the SPID I did't configure in the switch for simplicity, and it must have one for 5ess Thanks!

I am trying to configure it as the ISDN switch, and route calls for two Cisco routers, but I couldn't get it working. I can see the Layer 1 and 2 are up, but the layer 3 won't work properly. One weird thing is both of the router got the same TEI, they are all 64. I am thinking I might screwed...

I didn't miss nothing, and that is why I am so confused.

Hi guys, We have two routers running HSRP and OSPF, which connect to our ISP's two routers by dumb switches. I can see from our routers that our routers and their router established OSPF neighbour relationships all right. one of our router is BDR, and one of our ISP's router is DR. However, I...

Hi, I knew Cisco private vlan edge /protected port is only local significant to a switch and it is layer 2. However, I don't know how I get this idea that it can go beyond one single switch in some kind of stack or cluster (3750 stackwise?). I would appreciate if someone can tell me if it is...