z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM)
Previous topic | Next topic | Contents | Contact z/OS | Library | PDF


EZZ7919I

z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM)
SC27-3657-01

EZZ7919I
State change, ipversion OSPF, neighbor neighbor, new state state, event event

Explanation

The specified event was generated, causing the specified neighbor to transition to the specified new state.

ipversion is the IP version that OSPF is running. Possible values for ipversion are:
  • IPv6 — OSPF for IPv6
  • IPv4 — OSPF for IPv4

neighbor is the neighboring OSPF router. If ipversion is IPv4, it is the neighbor's interface address on the common network. If ipversion is IPv6, it is the neighbor's OSPF router ID.

state is the Neighbor State Code. The Neighbor State Codes are described in RFC 2328. See Related protocol specifications for directions to get a copy of the RFC. The Neighbor State Codes can be one of the following:
1
Down
2
Attempt
4
Init
8
2-way
16
ExStart
32
Exchange
64
Loading
128
Full
event is the Neighbor Event Code. The Neighbor Event Codes are described in RFC 2328. See Related protocol specifications for directions to get a copy of the RFC. The Neighbor Event Codes can be one of the following:
1
HelloReceived
2
Start
3
2-WayReceived
4
AdjOK?
5
NegotiationDone
6
ExchangeDone
7
SeqNumberMismatch
8
BadLSReq
9
LoadingDone
10
1-way
11
KillNbr
12
InactivityTimer
13
LLDown
14
AdjStart. This event is not described in RFC2328. Bidirectional communication was established with the neighbor and this is a neighbor with whom an adjacency should be established.
15
NoProg. This event is nott described in RFC2328. This is an indication that adjacency establishment with the neighbor failed to complete in a reasonable time period (Dead_Router_Interval seconds). Adjacency establishment restarts.
16
MaxAdj. This event is not described in RFC2328. This indicates that OMPROUTE has exceeded the futile neighbor state loop threshold (DR_Max_Adj_Attempt). Even if a redundant parallel interface (primary or backup) exists, OMPROUTE continues to attempt to establish adjacency with the same neighboring designated router over the existing or alternate interface. See the network design considerations with z/OS® Communications Server information in z/OS Communications Server: IP Configuration Guide for more information about futile neighbor state loops.

System action

None.

Operator response

None.

System programmer response

None.

Module

SPFNBR, EZA6RSPB

Go to the previous page Go to the next page




Copyright IBM Corporation 1990, 2014