Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

Junos ®
OS 12.3 Ethernet Interfaces Configuration Guide
368
NOTE: Each 100-Gigabit Ethernet PIC creates two et- physical interfaces,
defined as 50-gigabit physical interfaces in the Routing Engine and Packet
Forwarding Engine. By default, these are independent physical interfaces
and are not configured as an aggregated Ethernet interface.
The 100-Gigabit Ethernet PIC supports aggregated Ethernet configuration
to achieve higher throughput capability, whereby configuration is similar to
the 1G/10G aggregated Ethernet interface configuration.
The 100-Gigabit Ethernet PIC has the following restrictions for aggregated
Ethernet configuration:
• Both physical interfaces belonging to the same 100-Gigabit Ethernet PIC
must be included in the same aggregated Ethernet physical interfaces. The
aggregation of the 100-Gigabit Ethernet PIC interface is always an even
number of physical interfaces.
• The 100-Gigabit Ethernet PIC physical interface cannot be configured in
the aggregated interface with any other type of physical interface.
• The maximum supported number of aggregated 100-Gigabit Ethernet PIC
interfaces is half of the number that the Junos OS supports for 1G/10G
aggregated Ethernet. For example, if Junos OS supports 16 ports of
10-gigabit Ethernet aggregation, it supports 8 ports of 100-Gigabit Ethernet
PIC aggregation. This is because each port of the 100-Gigabit Ethernet PIC
port using 2 physical interfaces (et-x/0/0:0 and et-x/0/0:1), where each
physical interface represents 50 gigabits of traffic capacity.
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