Shibu Nair wrote: > > If anybody could remember, what is the 802.5 optional field > other than RIF. ? > Thank you > Shibu > >
The question doesn't make a lot of sense without any context, but the only thing I can think of is that the 802.2 LLC header is optional. LLC encapsulates upper-layer data. But 802.5 Token ring has a bunch of MAC frames that don't have any upper-layer data. They are just used for managing the ring. They include: duplicate address test active monitor present standby monitor present beacong soft error report Other than that, I can't think of anything that is optional. All the fields in an 802.5 header must appear. The RIF and LLC headers are optional though. Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=71743&t=71721 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
