At 09:48 AM 7/15/2003 +0000, Karen E Young wrote: >KY: According to the RFC (page 99) "If the Interface MTU field in the >Database Description packet indicates an IP datagram size that is larger >than the router can accept on the receiving interface without fragmentation, >the Database Description packet is rejected." > >With this in mind the only time fragmentation should occur is when a virtual >link is used since the MTU of a virtual link is set to "0".
The "Interface MTU" field describes the MTU of the sending interface, not the size of the DD packet. Just because the MTU of the sending router is smaller than or equal to that of the receiving router, it doesn't follow that fragmentation can't occur. Fragmentation occurs because the data (ie. the DD packet) to be sent is larger than the MTU of the *sending* router. Thanks, Zsombor Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72302&t=72024 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
