ashish1542
Technical User
Hi,
The question may seem stupid, but i do want to know what is the need for WAN encapsulation (HDLC, PP etc.). Is it there only to distinguish between frames, provide synchronisation and provide CRC error indications, or there some other reason. Also when a router prepares a packet for transmission across a WAN (assuming a point to point link), what sort of layer 2 to layer 3 mappings would be used(as arp is not used on WAN ). Just a little confused, and need some solid theory to clear my doubts. Thanks in advance
The question may seem stupid, but i do want to know what is the need for WAN encapsulation (HDLC, PP etc.). Is it there only to distinguish between frames, provide synchronisation and provide CRC error indications, or there some other reason. Also when a router prepares a packet for transmission across a WAN (assuming a point to point link), what sort of layer 2 to layer 3 mappings would be used(as arp is not used on WAN ). Just a little confused, and need some solid theory to clear my doubts. Thanks in advance