just when you thought you were becoming proficient at routing, advanced concepts and the like, area id's and autonomous systems, ad infinitum, you suffer a setback with the likes of this:
a router has two primary functions:
path determination and packet forwarding
time to live (ttl) has a maximum value of 255, and has nothing to do with hop count
hop count refers to the number of routers a packet must pass through en route from source to destination
which of the above (path determination, packet forwarding) is hop count concerned with?
answer:
hop count determines distance and is placed in the routing table (path determination) while ttl determines how long a packet will be allowed to traverse the network before being discarded (packet forwarding)
easy, right?
see this link and curdle your brain http://www.ietf.org/rfc/rfc2453.txt
network cisco ccna gns3 certification arteq
a network runs through it
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