Link Aggregation Commands - Planet IGSW-2840 User Manual

5.16 Link Aggregation Commands

Ports can be statically grouped into an aggregate link (i.e., trunk) to increase the bandwidth of a network connection or to ensure
fault recovery. Or you can use the Link Aggregation Control Protocol (LACP) to automatically negotiate a trunk link between this
switch and another network device. For static trunks, the switches have to comply with the Cisco EtherChannel standard. For
dynamic trunks, the switches have to comply with LACP. This switch supports up to four trunks. For
consisting of two 1000 Mbps ports can support an aggregate bandwidth of 4 Gbps when operating at full duplex.
Command
Manual Configuration Commands
interface port-channel
channel-group
Dynamic Configuration Command
lacp
lacp system-priority
lacp admin-key
lacp admin-key
lacp port-priority
Trunk Status Display Command
show interfaces status
port-channel
show lacp
Guidelines for Creating Trunks
General Guidelines –
Finish configuring port trunks before you connect the corresponding network cables between switches to avoid creating a loop.
A trunk can have up to eight ports.
The ports at both ends of a connection must be configured as trunk ports.
All ports in a trunk must be configured in an identical manner, including communication mode (i.e., speed, duplex mode and flow
control), VLAN assignments, and CoS settings.
Any of the SFP transceivers can be trunked together, including those of different media types.
All the ports in a trunk have to be treated as a whole when moved from/to, added or deleted from a VLAN via the specified
port-channel.
STP, VLAN, and IGMP settings can only be made for the entire trunk via the specified port-channel.
Function
Configures a trunk and enters interface configuration mode for
the trunk
Adds a port to a trunk
Configures LACP for the current interface
Configures a port's LACP system priority
Configures a port's administration key
Configures an port channel's administration key
Configures a port's LACP port priority
Shows trunk information
Shows LACP information
Table 5-54 Link Aggregation Commands
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User's Manual of IGSW-2840
Example
, a trunk
Mode
GC
IC (Ethernet)
IC (Ethernet)
IC (Ethernet)
IC (Ethernet)
IC (Port
Channel)
IC (Ethernet)
NE, PE
PE