01-25-2008 08:33 AM - edited 03-05-2019 08:42 PM
Etherchannels can be used to add more bandwidth and loadbalancing between 2 switches. However, what is the diff. between that and a PortChannel. I noticed on Cisco. docs that Portchannels can be used for routing? However the port channel on my device has no ip address, but it is showing up up
Port-channel1 unassigned YES unset up up
Group: 1
----------
Group state = L2
Ports: 2 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: -
Ports in the group:
-------------------
interface Port-channel1
switchport access vlan 50
switchport mode access
switchport nonegotiate
Solved! Go to Solution.
01-25-2008 08:40 AM
Hi
Etherchannel is the technology that allows grouping together more than one physical links to increase bandwidth. It creates a logical link that is seen by STP as one link rather than the separate physical links that make up the logical link.
A port-channel is just the logical link.
You can use port-channels at either L2 or L3.
If it is a L3 portchannel then it will have an IP address, if it is L2 then it won't.
The port-channel in your example above is a L2 port-channel.
HTH
Jon
01-25-2008 08:40 AM
Hi Leonardo,
Basically they are same. When you bind multiple physical ports together an interface which is created is port-channel which is actually termed as etherchannel.
So the logical port which get created is port-channel which is also called as etherchannel. There can be layer 2 ether channels a well as layer 3 etherchannels.
When you bind multiple layer 2 interfaces they are called as layer 2 etherchannels/portchannels as you have in your case. But if I just assign an ip address to your port channel it becomes layer 3 port channel.
HTH
Ankur
*Pls rate all helpfull post
01-25-2008 08:40 AM
Hi
Etherchannel is the technology that allows grouping together more than one physical links to increase bandwidth. It creates a logical link that is seen by STP as one link rather than the separate physical links that make up the logical link.
A port-channel is just the logical link.
You can use port-channels at either L2 or L3.
If it is a L3 portchannel then it will have an IP address, if it is L2 then it won't.
The port-channel in your example above is a L2 port-channel.
HTH
Jon
01-25-2008 08:40 AM
Hi Leonardo,
Basically they are same. When you bind multiple physical ports together an interface which is created is port-channel which is actually termed as etherchannel.
So the logical port which get created is port-channel which is also called as etherchannel. There can be layer 2 ether channels a well as layer 3 etherchannels.
When you bind multiple layer 2 interfaces they are called as layer 2 etherchannels/portchannels as you have in your case. But if I just assign an ip address to your port channel it becomes layer 3 port channel.
HTH
Ankur
*Pls rate all helpfull post
01-25-2008 09:37 AM
i appreciate the clarification
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