Download Print this page

Allied Telesis AT 9924SP AT-9924SP-30 AT-9924SP-30 Software Manual page 51

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

Advertisement

8. The master node returns the ring to a state of Complete
Now that the ring is back up, the master node blocks its secondary port for the data VLAN,
transmits a Ring-Up-Flush-FDB message, flushes its FDB, sends a trap, and changes the EPSR
state to Complete.
Block EPSR:test port:2 VLAN:2
EPSR Port1 Tx:
00bb0100 00541fea 00000000 0000cd28 0619990b 00400106 03e80000 00000000
cd280619 00000000 01000000
EPSR Port1 Tx:
-----------------------------------------------------------------------
-----------------------------------------------------------------------
Flush FDB EPSR: test
EPSR INFO: Send trap EPSR:test oldState:FAILED newState:COMPLETE
nodeType:MASTER
EPSR test oldState:FAILED newState:COMPLETE
9. The master node receives the Ring-Up-Flush-FDB message on port 2
The master node receives the Ring-Up-Flush-FDB message back on its secondary port,
because the packet traversed the whole ring. The master node ignores the message.
EPSR Port2 Rx:
00bb0100 00541fea 00000000 0000cd28 0619990b 00400106 03e80000 00000000
cd280619 00000000 01000000
EPSR Port2 Rx:
-----------------------------------------------------------------------
-----------------------------------------------------------------------
Page 51 | AlliedWare™ OS How To Note: EPSR
00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b
TYPE = RING-UP-FLUSH-FDB
CTRL VLAN = 1000
HELLO TIME = 0
HELLO SEQ = 0
vid: 2
00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b
TYPE = RING-UP-FLUSH-FDB
CTRL VLAN = 1000
HELLO TIME = 0
HELLO SEQ = 0
STATE = COMPLETE
SYSTEM = 00-00-cd-28-06-19
FAIL TIME = 0
STATE = COMPLETE
SYSTEM = 00-00-cd-28-06-19
FAIL TIME = 0
Debugging

Advertisement

loading