At 10:46 PM +0000 7/8/03, Zsombor Papp wrote: >The LSA will be fragmented at the IP layer.
Do you know for certain this is what Cisco's implementation does? The OSPF code is aware of the MTU and can build OSPF packets for it. I don't think you're really going to simplify it by relieving it of the need to keep track of lengths. On the other hand, if you send a LSupdate that is at the MTU, the receiving router can immediately start checking and installing it in the LSDB, without waiting for fragments. This allows some concurrency between OSPF packet transmission and OSPF protocol processing. >At 11:39 AM 7/8/2003 +0000, hebn9999 wrote: >>layer 2 frame has a MTU of 1500 bytes. >> how does cisco router propagate router-lsa whose size exceed 1500 > >bytes(more than 122 links in one area)? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72046&t=72024 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]