Allied Telesis AT-8948 manual Link Down Between Two Transit Nodes, Master Node Node a Debug Output

Page 47

Debugging

Link Down Between Two Transit Nodes

This section shows the debugging output when the link between transit node B and transit node C goes down and comes back up again. It shows the debugging output for the complete failure and recovery cycle:

on the master node, and then

on transit node B

Master Node (Node A) Debug Output

The following debugging output starts with the ring established and in a state of Complete.

1.The master node sends Health messages

Each time the Hello timer expires, the master node sends a Health message out its primary port (port 1). As long as the ring is in a state of Complete, it receives each Health message again on its secondary port (port 2).

Manager x900-48-A>

epsrHelloTimeout: EPSR test Hello Timer expired

EPSR Port1 Tx: 00e02b00 00040000 cd280619 8100e3e8 005caaaa 0300e02b 00bb0100 00541ea1 00000000 0000cd28 0619990b 00400105 03e80000 00000000 cd280619 00010002 01000147

EPSR Port1 Tx:

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

TYPE

= HEALTH

STATE

= COMPLETE

CTRL VLAN

= 1000

SYSTEM

=

00-00-cd-28-06-19

HELLO TIME

=

1

FAIL TIME

=

2

HELLO SEQ

=

327

 

 

 

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

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

00bb0100

00541ea1

00000000

0000cd28

0619990b

00400105

03e80000

00000000

cd280619

00010002

01000147

 

 

 

 

 

EPSR Port2 Rx:

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

TYPE

= HEALTH

STATE

= COMPLETE

CTRL VLAN

= 1000

SYSTEM

=

00-00-cd-28-06-19

HELLO TIME

=

1

FAIL TIME

=

2

HELLO SEQ

=

327

 

 

 

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

Page 47 AlliedWare™ OS How To Note: EPSR

Image 47
Contents What information will you find in this document? IntroductionWhich products and software versions does it apply to? Epsr Components How Epsr WorksEstablishing a Ring Fault in a link or a transit node Recovering from a FaultFault in the master node Transit Nodes with Both Ports Down Restoring Normal OperationMaster Node Transit Nodes with One Port DownConfiguring Epsr How To Configure EpsrConfigure other ports and protocols as required Iii. Remove the ring ports from the default VlanIv. Configure the Epsr domain Enable EpsrModifying the Control Vlan Example 1 a Basic Ring Configure the Master Node aAdd the data Vlan to the domain Configure the Transit Nodes B and CRemove the ring ports from the default Vlan Create the Epsr domainCreate epsr=test mode=transit controlvlan=vlan1000 Example 2 a Double Ring Configure the master node switch a for domainConfigure Epsr Configure the master node switch C for domainConfigure the data Vlan for domain Example 3 Epsr and Rstp Configure the master node switch a for the Epsr domainRemove the STP VLAN’s ports from the default Vlan Configure switch E for Epsr and Rstp Epsr Domain Example 4 Epsr with Nested VLANsConfigure the Epsr control Vlan Configure client switch H connected to transit node D Configure client switch E connected to the master nodeConfigure client switch F connected to transit node B Configure client switch G connected to transit node CExample 5 Epsr with management stacking Configure stacking on the second transit node host3 Configure stacking on the first transit node host2Configure Epsr on the stacked switches Configure the other VLANs on the stacked switchesExample 6 Epsr with an iMAP Configure the AT-TN7100 iMAP as Master NodeFollowing diagram shows the expected output Checking the Master Node ConfigurationChecking the Transit Node Configuration Configure the AT-TN7100 iMAP as a Transit NodeLINKS-UP Classifiers and Hardware FiltersPorts and Recovery Times Health Message Priority Igmp Snooping and Recovery TimesEpsr State and Settings Epsr Information Name Domain1 Snmp Traps Counters Master node sends Health messages DebuggingLink Down Between Master Node and Transit Node Master Node Node a Debug OutputPrimary port goes down Master node continues sending Health messagesMaster node transmits a Ring-Down-Flush-FDB message Primary port comes back up Hello timer expiresHello timer expires again Master node receives the Ring-Up-Flush-FDB message on port Master node returns the ring to a state of CompleteMaster node transmits and receives Health messages Transit node receives Health messages Transit Node Node B Debug OutputTransit node receives a Ring-Down-Flush-FDB message Port 1 on the transit node goes downTransit node receives a Health message Port 1 comes back upTransit node receives a Ring-Up-Flush-FDB message 252 Link Down Between Two Transit Nodes Link between the two transit nodes goes down Master node receives a second Link-Down message Master node receives a Health message 51 AlliedWare OS How To Note Epsr 375 53 AlliedWare OS How To Note Epsr Transit node sends a Link-Down message Transit node receives another Health message Link comes back upTransit node receives a Ring-Up-Flush-FDB message

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