1. we all know MAC is short for media access control, which is used in Layer 2 , and only in IEEE802 standard system. in another type of network Frame Relay, we used Data Link Control Interface instead. so i guess that we use different tool to identi...

Hi  Guys,I met a problem which attached to LINKSYS(WRT54GC ver. 2.0). Well, i used a wireless router outsiede, but i can't get the signal in my bedroom, since the cable in my house is not long enough to reach my bedroom. so i wanna use another wirele...

Well, here is my lab NP.  but i find it can reflect so many problems.As you know, we often use loopback interface to establish ibgp peer in one AS, and use connected interface to establish ebgp peer between diferent AS(s). just like my lab, i use loo...

Now one of my server, which runs linux, has the same subnet with my  switch. for example 192.168.1.0/24. and the assume the ip of the server is 192.168.1.10, and the manage ip of switch is 192.168.1.100, but when I telnet  192.168.1.100 after I login...