[Q] DECnet phase IV node drops itself. Why? How?

From: AEF (spamsink2001_at_yahoo.com)
Date: 10/05/05 

Date: Wed, 05 Oct 2005 01:37:46 GMT

Hello,

How can a node drop itself? See below. What does it mean?

%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:12.76 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.18, adjacency down
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:12.72
Circuit SVA-0, Dropped by adjacent node, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:12.76 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.15, adjacency up
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:12.73
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:12.77 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.18, adjacency down
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:12.73
Circuit SVA-0, Dropped by adjacent node, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:12.77 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.15, adjacency up
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:12.74
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)
.
.
.
%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:18.22 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.18, adjacency down
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:12.95
Circuit SVA-0, Dropped by adjacent node, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:18.23 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.15, adjacency up
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:13.02
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:12:57.38 %%%%%%%%%%%
Message from user DECNET on NODE_X
DECnet event 4.18, adjacency down
>>From node 1.218 (NODE_X), 25-SEP-2005 19:12:57.37
Circuit SVA-0, Adjacent node listener receive timeout
Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:05.36 %%%%%%%%%%%
Logfile time stamp

On another node, some rejections. Why would a node be rejected?

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:23.24 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.16, adjacency rejected
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:23.00
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:23.26 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.15, adjacency up
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:23.01
Circuit SVA-0, Adjacent node = 1.125 (NODE_F)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:33.36 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.16, adjacency rejected
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:33.35
Circuit SVA-0, Adjacent node = 1.125 (NODE_F)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:33.36 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.15, adjacency up
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:33.35
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:38.97 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.16, adjacency rejected
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:38.97
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:38.98 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.15, adjacency up
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:38.97
Circuit SVA-0, Adjacent node = 1.125 (NODE_F)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:44.35 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.16, adjacency rejected
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:40.35
Circuit SVA-0, Adjacent node = 1.125 (NODE_F)

%%%%%%%%%%% OPCOM 25-SEP-2005 19:17:44.36 %%%%%%%%%%%
Message from user DECNET on NODE_Y
DECnet event 4.15, adjacency up
>>From node 1.213 (NODE_Y), 25-SEP-2005 19:17:40.35
Circuit SVA-0, Adjacent node = 1.218 (NODE_X)

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