Bit swapping? [7:7602]
Bit swapping? Could some please explain bit swapping to me? I have been studying for my CCIE written and I have a practice test with a bit swapping question. I don't understand there explanation. the question goes like this. Assume host T sends a frame to host E, what is the source MAC address as it would be represented on the Ethernet segment HOST E Ethernet RouterB(SR/TLB)-token ringHOST T HOST T MAC 0110.1234.5678 HOST E MAC 0060.09c3.df60 Ethernet address of RouterB 0060.09d3.df60 Token Ring interface RouterB 0110.1256.8765 A.) 8008.482c.6ale B.) 0110.1234.5678 C.) 0060.09c3.df60 D.) 0110.1256.8765 E.) 0060.09c3.df60 The practice test says the answer is A Why? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=7602&t=7602 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bit swapping? [7:7602]
ah, the rossi token ring paper covers this in detail. Brian "Sonic" Whalen Success = Preparation + Opportunity On Thu, 7 Jun 2001, [EMAIL PROTECTED] wrote: > Bit swapping? Could some please explain bit swapping to me? I have been > studying for my CCIE written and I have a practice test with a bit swapping > question. I don't understand there explanation. > > > the question goes like this. > > Assume host T sends a frame to host E, what is the source MAC address as it > would be represented on the Ethernet segment > > > > HOST E Ethernet RouterB(SR/TLB)-token ringHOST T > > HOST T MAC 0110.1234.5678 > HOST E MAC 0060.09c3.df60 > Ethernet address of RouterB 0060.09d3.df60 > Token Ring interface RouterB 0110.1256.8765 > > A.) 8008.482c.6ale > B.) 0110.1234.5678 > C.) 0060.09c3.df60 > D.) 0110.1256.8765 > E.) 0060.09c3.df60 > > > The practice test says the answer is A > > Why? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=7612&t=7602 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bit swapping? [7:7602]
Bit swapping threw me too until you realize it's byte swapping.. Say you have a partial MAC address of: A325 62E0 That would equal this in binary: 1010 0011 =A3 0010 0101= 25 0110 0010= 62 1110 = E0 To do bit swapping or LSB it would change to: 1100 0101 =C5 1010 0100= A4 0100 0110= 46 0111= 07 Hope that helps! Mike Bambic Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=7619&t=7602 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
