Instead of vlan pruning I would specify the vlans I need on the etherchannel.
whatever you decide to do and for consistency, I would keep all of them same if possible and not a mixture of both features. It became a management burden to keep track of what link is using what feature.
Also, make sure you test it if you decide to go with on and on. I have tested ePAGP and it works well.
Do you mean "switchport trunk allowed vlan". If yes, thats what even i meant by vlan pruning.
Sorry if i miscommunicated on this.
But if this is what it is, dont you think that there will be issues when you allow vlans on either side on the portchannel.
Lets say for example if you have vlans a,b,c allowed on both ends on the etherchannel trunk. Tomorrow, if you want to add vlan d,
then when you add it on one side, and take a few seconds and add on the other side, my guess is that you may lose the port channel link because the allowed vlans on both sides is different. Please correct me if am wrong?
A MultiChassis EtherChannel is an EtherChannel with ports that terminate on both chassis of the VSS. A VSS MEC can connect to any network element that supports EtherChannel, such as a host, server, router, or switch. At the VSS, an MEC is an EtherChannel with additional capability. The VSS balances the load across ports in each chassis independently. For example, if traffic enters the active chassis, the VSS selects an MEC link from the active chassis. This MEC capability ensures that data traffic does not unnecessarily traverse the VSL.
* L2 MEC enables loop free topology, doubles the uplink bandwidth as no links are blocked and provides faster convergence than STP.
* L3 MEC provides reduced neighbor counts, better load-sharing (L2 and L3 for unicast and multicast), reduced VSL link utilization for multicast flows and faster convergence than ECMP.
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