Install guide

Ethernet Protection Switching Ring (EPSR) show epsr 29
Table 1-2: Parameters displayed in the output of the show epsr command
Parameter Meaning
Name The name of the EPSR instance.
Mode Whether the EPSR instance is running as a Master or Transit node
on this device.
Status The status of the named epsr instance: either Enabled or Disabled.
State The state of the EPSR instance.
In a master node, a state can be: Idle, Complete or Failed.
In the transit node, a state can be: Idle, Links-Up, Links-Down or
Pre-Forwarding.
Control VLAN The control VLAN for the named EPSR instance. The VLAN
Identifier is shown in brackets.
Data VLAN(s) A list of data VLANs for the named EPSR instance. The VLAN
Identifiers are shown in brackets.
Primary Port The primary port for the named EPSR instance. This parameter is
only shown on the master node for the instance named.
Primary Port Status The status of the primary port; either Unknown, Forwarding,
Down or Blocking. Unknown is displayed when the EPSR instance
is disabled. This parameter is only shown for a master node.
Secondary Port The secondary port for the EPSR instance. This parameter is only
shown on the master node for the instance named.
Secondary Port Status The status of the secondary port; either Unknown, Forwarding,
Down or Blocked. Unknown is displayed when the EPSR instance
is disabled. This parameter is only shown for a master node.
Hello Time The rate that the TAPS protocol health control messages are
transmitted from master node. It is specified in the create epsr
command.
The unit symbol following the value shows whether the time is
measured in seconds or milliseconds.
Failover Time The time period that a master node waits for a healthcheck frame
to circulate the loop before declaring that the EPSR ring has
broken. The time period is measured from the time the frame
leaves the master node’s primary port, to the time it is received at
the master node’s secondary port. This parameter is only shown
for a master node.
The unit symbol following the value shows whether the time is
measured in seconds or milliseconds.
Ring Flap Time The minimum number of seconds that a master node must remain
in the failed state (before moving to the complete state), even if
the ring has recovered from its fault condition. This delay is to limit
unnecessary blocking and unblocking of the secondary port when
a link in the ring is flapping. This parameter is only shown for a
master node.
Trap Indicates whether SNMP traps will be sent when the EPSR instance
changes state. The display is one of: enabled or disabled. If
enabled, traps will be sent as long as the SNMP module is
configured appropriately. If disabled, traps will not be sent.
First Port The first ring port for the EPSR instance. This parameter is only
shown for an instance in transit mode.