Configuring Lacp Port Priority; Tracing Lacp Operations - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

Configuring LACP Port Priority

To configure LACP port priority for aggregated Ethernet interfaces, use the
statement at the
[edit interfaces interface-name fastether-options 802.3ad aeX lacp]
The port priority is a 2-octet field that is part of the LACP port ID. The LACP port ID
consists of the port priority as the two most-significant octets and the port number
as the two least-significant octets. The system with the numerically lower value for
port priority has the higher priority. By default, port priority is 127, with a range of
0 to 65,535.
Port aggregation selection is made by each system based on the highest port priority
and are assigned by the system with the highest priority. Ports are selected and
assigned starting with the highest priority port of the highest priority system and
working down in priority from there.

Tracing LACP Operations

To trace the operations of the LACP process, include the
the
You can specify the following flags in the
For general information about tracing, see the tracing and logging information in the
JUNOS System Basics Configuration Guide.
[edit interfaces interface-name gigether-options 802.3ad aeX lacp]
[edit interfaces interface-name gigether-options 802.3ad aeX lacp]
port-priority priority;
hierarchy level:
[edit protocols lacp]
[edit protocols lacp]
traceoptions {
file <filename> <files number> <size size> <world-readable | no-world-readable>;
flag flag;
no-remote-trace;
}
—All LACP tracing operations
all
configuration —Configuration code
—Packets sent and received
packet
—LACP process events
process
protocol —LACP protocol state machine
routing-socket —Routing socket events
—Process startup events
startup
Chapter 35: Configuring Aggregated Ethernet Interfaces
traceoptions
protocols lacp traceoptions
Configuring Aggregated Ethernet LACP
port-priority
or
hierarchy levels:
statement at
statement:
653