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Allied Telesis AT 9924SP AT-9924SP-30 AT-9924SP-30 Software Manual page 50

Configure epsr (ethernet protection switching ring) to protect a ring from loops

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6. The master node continues sending Health messages
The master node continues sending Health messages out its primary port. It does not receive
any of these at the secondary port, which tells it that the link is still down.
Manager x900-48-A>
epsrHelloTimeout: EPSR test Hello Timer expired
EPSR Port1 Tx:
00bb0100 00541d9f 00000000 0000cd28 0619990b 00400105 03e80000 00000000
cd280619 00010002 02000149
EPSR Port1 Tx:
-----------------------------------------------------------------------
-----------------------------------------------------------------------
.
.
.
7. The master node receives a Health message
The master node transmits a Health message and receives it at the secondary port. This
indicates that the link is back up.
Manager x900-48-A>
epsrHelloTimeout: EPSR test Hello Timer expired
EPSR Port1 Tx:
00bb0100 00541d72 00000000 0000cd28 0619990b 00400105 03e80000 00000000
cd280619 00010002 02000176
EPSR Port1 Tx:
-----------------------------------------------------------------------
-----------------------------------------------------------------------
EPSR Port2 Rx:
00bb0100 00541d72 00000000 0000cd28 0619990b 00400105 03e80000 00000000
cd280619 00010002 02000176
EPSR Port2 Rx:
-----------------------------------------------------------------------
-----------------------------------------------------------------------
Page 50 | AlliedWare™ OS How To Note: EPSR
00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b
TYPE = HEALTH
CTRL VLAN = 1000
HELLO TIME = 1
HELLO SEQ = 329
00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b
TYPE = HEALTH
CTRL VLAN = 1000
HELLO TIME = 1
HELLO SEQ = 374
00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b
TYPE = HEALTH
CTRL VLAN = 1000
HELLO TIME = 1
HELLO SEQ = 374
STATE = FAILED
SYSTEM = 00-00-cd-28-06-19
FAIL TIME = 2
STATE = FAILED
SYSTEM = 00-00-cd-28-06-19
FAIL TIME = 2
STATE = FAILED
SYSTEM = 00-00-cd-28-06-19
FAIL TIME = 2
Debugging

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