Link aggregation is a technology that allows you to combine several physical channels into one logical channel, which increases the bandwidth and reliability of the channel.Continue reading “LACP. Configuring Link Aggregation on D-Link Switches”
Once on Cisco Catalyst 6509-E, when I collected an aggregation of three ports, traffic began to go through only two ports and a message appeared in the logs:Continue reading “Solution “Port is not compatible with aggregators in channel 1 and cannot attach to them””
On the test, I will configure aggregation on two ports of Huawei SmartAX MA5683T and Cisco Catalyst 6509-E.Continue reading “Configuring link aggregation on Huawei SmartAX MA5600”
For the test, I will configure the aggregation on the Cisco Catalyst 6509-E.
Suppose I configured the first port as I need, I registered the necessary VLANs, now with the last commands we add the port to the aggregation channel:
interface GigabitEthernet1/7 switchport trunk encapsulation dot1q switchport trunk allowed vlan 111,144-190 switchport mode trunk no cdp enable lacp rate fast channel-protocol lacp channel-group 1 mode active
The second port should be configured in the same way and add the last commands to the aggregation channel as well:
interface GigabitEthernet1/8 switchport trunk encapsulation dot1q switchport trunk allowed vlan 111,144-190 switchport mode trunk no cdp enable lacp rate fast channel-protocol lacp channel-group 1 mode active
After the above commands, the Port-channel1 interface was automatically created, use the description command to add a note and enable it:
interface Port-channel1 description GPON OLT link aggregation no shutdown
The port aggregation configuration is completed, you can connect to them.
I note that it is better to configure aggregation with a pair of links, since a non-pair link is usually less load.
Personally, I prefer not to use channel aggregation, but to use 10Gb/s and 40Gb/s links.
If you need to delete several VLANs, then it is enough to delete them on Port-channel1 (on the ports included in the aggregation, they are deleted automatically):
interface Port-channel1 switchport trunk allowed vlan remove 180-190
An example of viewing various information about aggregation:
show lacp 1 internal show etherchannel 1 detail show etherchannel summary show etherchannel load-balance show interfaces gi1/7 show interfaces gi1/8 show ip int brief show cdp neighbor show lldp neighbor show interfaces status err-disabled