Cisco ASR 9000 Series - Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference

DescriptionField
Maximum packet size, in bytes, that a particular
interface can handle.
MTU
Encapsulation method assigned to the interface.Encapsulation
Indicates the operating mode of the interface, followed
by transmission data.
Mode
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
539
Internal Ethernet Control Network Commands on the Cisco ASR 9000 Series Router
show controllers backplane ethernet detail