cienaCesPbtTunnelReversionHoldTime

Protection of the transport mechanism in PBB-TE is achieved using redundant tunnels. A protected PBB-TE tunnel
          
is backed up by a standby PBB-TE tunnel serving the same destination. The former is marked as the primary 
          
tunnel and the latter as the backup tunnel. Protection switching in PBB-TE requires both the ingress
          
and egress nodes to have matching configurations. Upon the failure of the primary tunnel, traffic is moved 
          
over to the backup tunnel at the tunnel ingress. Tunnel reversion signifies the restoration of traffic 
          
from this backup tunnel (now active) to the primary (now standby) after the primary tunnel is restored.
          
Two common methods are used - automatic and manual. In automatic reversion, the traffic is automatically
          
reverted back to the primary after it is restored. The manual method, on the other hand, requires the 
          
operator to explicitly revert the traffic back to the primary. Manual reversion allows the network 
          
operator to perform the task when the impact to the service is minimal and to schedule it. It also prevents 
          
flip-flopping between the two tunnels if the primary is not entirely stable. 
          
This object represents the hold time before data traffic on the backup tunnel automatically 
          
reverts to the primary tunnel.

MIB

CIENA-CES-PBT-MIB

OID

.1.3.6.1.4.1.1271.2.1.6.1.1.1.5

Type

scalar

Access

readonly

Status

current

Units

milliseconds

Parent

cienaCesPbtGlobalAttrs

Groups

1