i did not find any 4500 switch introduction ppt filewould you please post a link,let me download it,thank you

i have a question Frame relay is not one of TDM technologies,right? how does it work when make FR over TDM,for example. see FR OVER ISDN.just make each DLCI (vc) map a B channel ?if so .the FR is just make more complex. pure ISDN is ok.ANY advice?tha...

can you give me a link or document on "E1 frame structure" ?i need it in detailed.thank you in advance

The packet assembler/disassembler (PAD) is a device commonly found in X.25 networks. PADs are used when a DTE device, such as a character-mode terminal, is too simple to implement the full X.25 functionality. The PAD is located between a DTE device a...

!---Specify L2TP traffic as interesting to use with IPSec. access-list 101 permit udp host 20.1.1.1 eq 1701 host 20.1.1.2 eq 1701thank you