i saw this issues too. which previous code hasn't this issue? Lala Lander <sshafi <at> gmail.com> writes: i saw issues with iBGP sessions...I kept receiving this messages for iBGP sessions till I went back to my previous code. *Aug 7 02:07:45: %BGP-3-NOTIFICATION: sent to neighbor x.x.x.x 1/2 (illegal header length) 2 bytes 1001 Thanks,