| Description | Enables/disables CDL on this interface.
When this object is set to 'true', CDL is enabled on
this interface. When this object is set to 'false',
CDL is disabled on this interface.
When CDL is enabled, the following actions are taken:
1) When a non-CDL packet is progressed to this interface for
transmission, the Ethernet packet is modified to carry the
CDL header. Similarly, when a received packet is progressed
from this interface to a non-CDL interface, the CDL header
is removed from the Ethernet packet.
2) Processing of CDL defect indications is activated.
3) The CDL Message Channel used to carry control (e.g. routing,
signalling) and management traffic is activated. The SNMP
agent creates an interface that represents the CDL Message
Channel. The interface representing the CDL Message Channel
is shown as a higher layer interface, with ifType
'propPointToPointSerial', residing above this CDL enabled
interface in the ifStackTable in the IF-MIB.
4) The CDL APS Channel is activated, if supported and APS is
configured for this interface.
5) Transport of multiple data flows (i.e. packet-by-packet
multiplexing) is activated, if this capability is supported
on this interface.
When CDL is disabled, only traditional (non-CDL) Ethernet
packets are transported, all packets on this interface are
treated as one Ethernet data flow, and the interface
representing the CDL message channel is deleted. |