Question on CDP [7:6396]
Hi, Cisco documents state that "CDP can run on all media that support SNAP". Does anyone know why? Thanks. Regards, cheekin Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6396&t=6396 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question on CDP [7:6396]
Actually, it can't. ATM is not supported. It is a simple L2 protocol. --- cheekin wrote: > Hi, > > Cisco documents state that "CDP can run on all media > that support SNAP". > Does > anyone know why? > > Thanks. > > Regards, > cheekin > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] = Robert Padjen __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6482&t=6396 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question on CDP [7:6396]
Cisco probably chose SNAP for CDP because SNAP is supported on Ethernet, FDDI, and Token Ring. That probably made the implementation a bit simpler. Other than that, SNAP doesn't have any advantages that I can think of. Also, I can't remember the exact details, but sometime late in the 1980s, the IEEE stopped assigning 802.2 SAPs. SAP is just a one-byte field and they were concerned about running out. So most newer protocols use the SNAP SAP and include a SNAP header. Since Ethernet II was supposed to go away (hah! ;-), and simply using IEEE 802.3/802.2 wasn't possible since they couldn't get a SAP, they were left with SNAP. Did I use enough TLAs in that? ;-) Priscilla At 06:20 AM 5/30/01, cheekin wrote: >Hi, > >Cisco documents state that "CDP can run on all media that support SNAP". >Does >anyone know why? > >Thanks. > >Regards, >cheekin >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6527&t=6396 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question on CDP [7:6396]
MORE, MORE, MORE!!! I love TLA's. But don't worry, I can quit using them anytime I wan't, I'm not addicted (conflicting opinions of my students not withstanding)! Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy Priscilla Oppenheimer wrote: > Cisco probably chose SNAP for CDP because SNAP is supported on Ethernet, > FDDI, and Token Ring. That probably made the implementation a bit simpler. > Other than that, SNAP doesn't have any advantages that I can think of. > > Also, I can't remember the exact details, but sometime late in the 1980s, > the IEEE stopped assigning 802.2 SAPs. SAP is just a one-byte field and > they were concerned about running out. So most newer protocols use the SNAP > SAP and include a SNAP header. Since Ethernet II was supposed to go away > (hah! ;-), and simply using IEEE 802.3/802.2 wasn't possible since they > couldn't get a SAP, they were left with SNAP. > > Did I use enough TLAs in that? ;-) > > Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6531&t=6396 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
