Is it possible to configure multiple ether-channel for the same vlan

[vipinrajrc]

Hi

In my scenarion i need to configure ether channel between servers and switches.

Is it possible to configure multipile ether-channel for the same vlan???

Jsut to confirm do i need to configure anything more than below to configure ether-channel???

int fa0/4

switchport access vlan100

spanning-tree portfast

channel-group 1 mode active

channel-protocol lacp

Thanks

Vipin

[Somasundaram Jayaraman]

Hi,

Configuration seems fine. Please note that the speed & Duplex settings should be same on both the ends.

Besides this, We can Configure the EtherChannel load balancing as well.

Switch(config)#port-channel load-balance ?

dst-ip Dst IP Addr

dst-mac Dst Mac Addr

src-dst-ip Src XOR Dst IP Addr

src-dst-mac Src XOR Dst Mac Addr

src-ip Src IP Addr

src-mac Src Mac Addr

Switch(config)#port-channel load-balance src-mac

Switch(config)#

some useful etherchannel commands:

============================

show port channel mod/port

show port channel channel-group

show interfaces etherchannel

show interfaces gig etherchannel

show etherchannel summary

show inter port-channel etherchannel

show interfaces etherchannel

show etherchannel port-channel

Cheers

Somu

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[vipinrajrc]

Hi,

But can i configure multiple ether-channel with the same vlan?

Thanks

Vipin

[Somasundaram Jayaraman]

Hi,

I believe it wont be an issue , if we are really sure about the network topology.

Because allowing the same vlan sometimes will result in loops.

We can make the etherchannel as trunk if it is required allowing all the vlans or allowing only the specific vlans.

Switchport trunk

switchport trunk allowed vlan

Cheers

Somu

[Peter Paluch]

Hello Vipin,

Yes, sure, you can configure multiple Etherchannels for a single VLAN, just as you can use multiple single ports in a single VLAN. You also do not need to worry about loops: as long as you run STP, possible loops are deactivated at the L2 level.

Best regards,

Peter