beautypg.com

Link aggregation commands, Table 4-48 – Accton Technology ES5508 User Manual

Page 349

background image

Link Aggregation Commands

4-137

4

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 example, a
trunk consisting of two 10 Gbps ports can support an aggregate bandwidth of
40 Gbps at full duplex.

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 four 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 VLAN

assignments and CoS settings.

• Any of the 10 Gigabit ports on the front panel can be trunked together,

including ports 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.

Table 4-48 Link Aggregation Commands

Command

Function

Mode

Page

Manual Configuration Commands
interface port-channel

Configures a trunk and enters interface

configuration mode for the trunk

GC

4-125

channel-group

Adds a port to a trunk

IC (Ethernet)

4-138

Dynamic Configuration Commands
lacp

Configures LACP for the current interface

IC (Ethernet)

4-139

lacp system-priority

Configures a port's LACP system priority

IC (Ethernet)

4-140

lacp admin-key

Configures a port's administration key

IC (Ethernet)

4-141

lacp admin-key

Configures an port channel’s administration key IC (Port Channel)

4-141

lacp port-priority

Configures a port's LACP port priority

IC (Ethernet)

4-142

Trunk Status Display Commands
show interfaces status

port-channel

Shows trunk information

NE, PE

4-130

show lacp

Shows LACP information

PE

4-143