Allied Telesis AT-9924SP-30 The master node transmits a Ring-Down-Flush-FDB message, Debugging

Debugging

4.The master node transmits a Ring-Down-Flush-FDB message

In response to the Link-Down message, the master node transmits a Ring-Down-Flush-FDB message out both its primary and secondary ports. The message has to go out both ports to make sure it reaches the nodes on both sides of the broken link. The master node also unblocks its secondary port for vlan2, flushes its forwarding database, sends a trap, and changes the EPSR state to Failed.

EPSR Port1 Tx: 00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b 00bb0100 00541ee9 00000000 0000cd28 0619990b 00400107 03e80000 00000000 cd280619 00000000 02000000

EPSR Port1 Tx:

-----------------------------------------------------------------------

TYPE	= RING-DOWN-FLUSH-FDB		STATE	= FAILED
CTRL VLAN	= 1000		SYSTEM	=	00-00-cd-28-06-19
HELLO TIME	=	0	FAIL TIME	=	0
HELLO SEQ	=	0

-----------------------------------------------------------------------

EPSR Port2 Tx: 00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b

00bb0100	00541ee9	00000000	0000cd28	0619990b	00400107	03e80000	00000000
cd280619	00000000	02000000

EPSR Port2 Tx:

-----------------------------------------------------------------------

TYPE	= RING-DOWN-FLUSH-FDB		STATE	= FAILED
CTRL VLAN	= 1000		SYSTEM	=	00-00-cd-28-06-19
HELLO TIME	=	0	FAIL TIME	=	0
HELLO SEQ	=	0

-----------------------------------------------------------------------

Unblock EPSR:test port:2 VLAN:2 Flush FDB EPSR: test vid: 2

EPSR INFO: Send trap EPSR:test oldState:COMPLETE newState:FAILED nodeType:MASTER

EPSR test oldState:COMPLETE newState:FAILED

5.The master node receives a second Link-Down message

The master node receives a Link-Down message from the transit node on the other side of the broken link. This message arrived after a delay because the ring ports are 1000M ports (see "Ports and Recovery Times" on page 30). The master node does not take any action in response to this message, because it already responded to the broken link.

Manager x900-48-A>

EPSR Port1 Rx: 00e02b00 00040000 cd24024f 8100e3e8 005caaaa 0300e02b 00bb0100 00542484 00000000 0000cd24 024f990b 00400108 03e80000 00000000 cd24024f 00000000 04000000

EPSR Port1 Rx:

-----------------------------------------------------------------------

TYPE	= LINK-DOWN		STATE	= LINK-DOWN
CTRL VLAN	= 1000		SYSTEM	=	00-00-cd-24-02-4f
HELLO TIME	=	0	FAIL TIME	=	0
HELLO SEQ	=	0

-----------------------------------------------------------------------

Page 49 AlliedWare™ OS How To Note: EPSR