
Link Aggregation Commands
4-147
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 six trunks. For example, a
trunk consisting of two 1000 Mbps ports can support an aggregate bandwidth of
4 Gbps when operating at full duplex.
GVRP Status
Shows if GARP VLAN Registration Protocol is enabled or disabled (page 4-191).
Allowed VLAN
Shows the VLANs this interface has joined, where “(u)” indicates untagged and
“(t)” indicates tagged (page 4-200).
Forbidden VLAN
Shows the VLANs this interface can not dynamically join via GVRP (page
Private VLAN Mode
Shows the private VLAN mode as host, promiscuous, or none.
Private VLAN
Host-association
Shows the secondary (or community) VLAN with which this port is associated.
Private VLAN Mapping
Shows the primary VLAN mapping for a promiscuous port.
Table 4-4 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
channel-group
Adds a port to a trunk
IC (Ethernet)
Dynamic Configuration Commands
lacp
Configures LACP for the current interface
IC (Ethernet)
lacp system-priority
Configures a port's LACP system priority
IC (Ethernet)
lacp admin-key
Configures a port's administration key
IC (Ethernet)
lacp admin-key
Configures a port channel’s administration key
IC (Port Channel)
lacp port-priority
Configures a port's LACP port priority
IC (Ethernet)
Trunk Status Display Commands
show interfaces status
port-channel
Shows trunk information
NE, PE
show lacp
Shows LACP information
PE
Table 4-3 show interfaces switchport - display description
(Continued)
Field
Description
Summary of Contents for ES4524M-PoE
Page 2: ......
Page 4: ...ES4524M PoE F1 0 0 5 E012008 ST R01 149100037400A...
Page 22: ...xviii Tables...
Page 26: ...xxii Figures...
Page 34: ...Introduction 1 8 1...
Page 270: ...Configuring the Switch 3 226...
Page 404: ...Command Line Interface 4 134 4...
Page 546: ...Software Specifications A 4 A...
Page 559: ......