|  Constants | 
                         
                         
                             |  no-change   | 
                             0 | 
                             No changes | 
                             
                                  No changes, init state for the attribute 
                              | 
                         
                         
                             |  holdtime-exp   | 
                             1 | 
                             Hold time Expiry | 
                             
                                  Hold timer Expired 
                              | 
                         
                         
                             |  stuck-in-active   | 
                             2 | 
                             Stuck in Active | 
                             
                                  No replies from the peer for SIA Queries 
                              | 
                         
                         
                             |  bfd-tear-down   | 
                             3 | 
                             BFD session state is down | 
                             
                                  BFD session is down 
                              | 
                         
                         
                             |  auth-mode-chged   | 
                             4 | 
                             Authentication mode changed | 
                             
                                  Authentication Mode changed 
                              | 
                         
                         
                             |  auth-keych-chged   | 
                             5 | 
                             Authentication keychain changed | 
                             
                                  Authentication Keychain changed 
                              | 
                         
                         
                             |  manual   | 
                             6 | 
                             Manually cleared | 
                             
                                  Adjacency cleared manually using command 
                              | 
                         
                         
                             |  stuck-in-init   | 
                             7 | 
                             Stuck in INIT state | 
                             
                                  Stuck in Wait-init State 
                              | 
                         
                         
                             |  if-goodbye-recvd   | 
                             8 | 
                             Interface goodbye message received | 
                             
                                  Interface Goodbye recevied from peer 
                              | 
                         
                         
                             |  k-val-mismatch   | 
                             9 | 
                             K-value mismatched | 
                             
                                  K values mismatch 
                              | 
                         
                         
                             |  peer-goodbye-recvd   | 
                             10 | 
                             Peer goodbye received | 
                             
                                  Peer Goodbye message received 
                              | 
                         
                         
                             |  insuff-mtu   | 
                             11 | 
                             Insufficent MTU size | 
                             
                                  Insufficent MTU size configured on interface  
                              | 
                         
                         
                             |  auth-failure   | 
                             12 | 
                             Authentication failure | 
                             
                                  Authentication Failure 
                              | 
                         
                         
                             |  mcast-hello-expected   | 
                             13 | 
                             Multicast hello expected | 
                             
                                  Expecting multicast hellos, but received a unicast hello from peer 
                              | 
                         
                         
                             |  ucast-hello-expected   | 
                             14 | 
                             Unicast hello expected | 
                             
                                  Expecting unicast hellos from the static peer, but received a multicast hello 
                              | 
                         
                         
                             |  peer-nsf-restart   | 
                             15 | 
                             Peer also NSF restarted | 
                             
                                  Peer has also NSF restarted 
                              | 
                         
                         
                             |  out-of-sync   | 
                             16 | 
                             Peer Out of sync | 
                             
                                  Received RS flag in INIT, while waiting for our init to be acked 
                              | 
                         
                         
                             |  peer-reset-adj   | 
                             17 | 
                             Peer resets adjacency | 
                             
                                  Received unexpected RS flag during NSF 
                              | 
                         
                         
                             |  peer-restart   | 
                             18 | 
                             Peer restarted | 
                             
                                  Peer restarted within our hold timer expiry 
                              | 
                         
                         
                             |  retry-limit-exceed   | 
                             19 | 
                             Retry limit exceeded | 
                             
                                  Retransmission limit for sending a unicast packet to the peer, exceeded 
                              | 
                         
                         
                             |  prefix-limit-exceed   | 
                             20 | 
                             Prefix limit exceeded | 
                             
                                  Prefix limit exceeeded for this peer
                              | 
                         
                         
                             |  summary-up   | 
                             21 | 
                             Summary UP, remove External routes | 
                             
                                  Summary is up, Remove the advertised external routes
                              | 
                         
                         
                             |  kill-all   | 
                             22 | 
                             All neighbors killed | 
                             
                                  Killing all neighbors 
                              | 
                         
                         
                             |  asn-chg   | 
                             23 | 
                             AS number changed | 
                             
                                  AS number changed 
                              | 
                         
                         
                             |  summary-conf   | 
                             24 | 
                             Summary configured | 
                             
                                  Summary configured 
                              | 
                         
                         
                             |  metric-wt-chg   | 
                             25 | 
                             Metric Weights changed | 
                             
                                  Metric Weights (K values) changed 
                              | 
                         
                         
                             |  metric-ver-chg   | 
                             26 | 
                             Metric version changed | 
                             
                                  Metric Version changed 
                              | 
                         
                         
                             |  maxhopcnt-chg   | 
                             27 | 
                             Max hopcount changed | 
                             
                                  Max-Hopcount configuration changed 
                              | 
                         
                         
                             |  peer-info-chg   | 
                             28 | 
                             Peer Info Changed | 
                             
                                  Stub Configuration sent in PeerInfo changed 
                              | 
                         
                         
                             |  route-conf-chg   | 
                             29 | 
                             Route configuration changed | 
                             
                                  Route configuration changed viz. router-id, dist-list etc..  
                              | 
                         
                         
                             |  subnet-mismatch   | 
                             30 | 
                             Subnet mismatched | 
                             
                                  Source Address Subnet does not match our address 
                              | 
                         
                         
                             |  ip-deconf   | 
                             31 | 
                             Last IP address deconfigured | 
                             
                                  Last IP address removed from interface 
                              | 
                         
                         
                             |  if-down   | 
                             32 | 
                             Interface Status down | 
                             
                                  Interface in down state 
                              | 
                         
                         
                             |  proto-shut   | 
                             33 | 
                             Protocol shutdown | 
                             
                                  EIGRP Protocol shutdown configured at interface/global level
                              | 
                         
                         
                             |  if-disable   | 
                             34 | 
                             Interface disabled | 
                             
                                  Interface disabled, no longer part of EIGRP 
                              | 
                         
                         
                             |  if-passive   | 
                             35 | 
                             Interface in passive mode | 
                             
                                  Interface State changed to passive 
                              | 
                         
                         
                             |  split-horizon-chg   | 
                             36 | 
                             Split-horizon changed | 
                             
                                  Split horizon configuration changed 
                              | 
                         
                         
                             |  nh-self-chg   | 
                             37 | 
                             Nh-self config changed | 
                             
                                  Nexthop-self configuration changed 
                              | 
                         
                         
                             |  static-peer-conf   | 
                             38 | 
                             Static peer configured | 
                             
                                  New Static Peer configured, bring down the dynamic peer learnt 
                              | 
                         
                         
                             |  soo-chg   | 
                             39 | 
                             SoO is changed | 
                             
                                  SoO tag changed for the interface 
                              | 
                         
                         
                             |  peer-graceful-restart   | 
                             40 | 
                             Peer requested GR | 
                             
                                  Peer requested a graceful restart 
                              | 
                         
                         
                             | DEFAULT  | 
                             no-change(0) | 
                             No changes | 
                             
                                  No changes, init state for the attribute 
                              |