[j-nsp] BGP error messages

[jjsyed at aol.com]

My router is peering with my provider router and I am seeing error messages below and was wondering if somebody can explain if this is something to be worried about. It seems like I am receiving notification messages from my peer but why it would cause the bgp session to drop? 
 
Aug 31 05:54:11  iny-jisp4 mib2d[2532]: SNMP_TRAP_LINK_DOWN: ifIndex 33,
ifAdminStatus up(1), ifOperStatus down(2), ifName so-1/3/1
Aug 31 05:54:11  iny-jisp4 rpd[2533]: bgp_ifachange_group: NOTIFICATION sent
to 208.173.135.189 (External AS 3561): code 6 (Cease) subcode
 6 (Other Configuration Change), Reason: Interface change for the peer-group
Sep  5 07:49:48  iny-jisp4 rpd[2533]: bgp_read_v4_update: NOTIFICATION
received from 208.173.135.189 (External AS 3561): code 6 (Cease) su
bcode 6 (Other Configuration Change)
Sep  7 13:03:00  iny-jisp4 rpd[2533]: bgp_read_v4_update: NOTIFICATION
received from 208.173.135.189 (External AS 3561): code 6 (Cease) su
bcode 6 (Other Configuration Change)
 
TIA
 
JS