Redundant Link Connection From Access Switch To HA Aggregation switch

[isaaco001]

Dear Support,

I am configuring an access switch with main fiber link connection to Aggregation/core switch and a second fiber link connection to the same Aggregation/core switch.

How should the access switch and aggregation/core switch be configured to allow two connection from access switch to core switch? 

Thanks guys!

Isaac.

[balaji.bandi · Accepted solution]

Is your Agreegation switch part of  VSS or VSL - Depends on requirement.

If this Pure Layer 2 - LACP Port-channel will be good

Access swictch switch 1 (uplink)-- Port-channel X------Aggigation switch 1

Access swictch switch 2 (uplink)-- Port-channel X --------Aggigation switch 2

[isaaco001]

BB,

Thanks for your answer.

The Agg switch is in  SVL,so your suggestion will work!

But what if the switches where not in SVL but logically separate,would the approach be different?

Regards,

Isaac.

[balaji.bandi · Accepted solution]

If they are not part of SVL (most deployment we have was, Layer3 deployment using OSPF or EIGRP)  Load balance.

In that Case Access switch need to configure Layer 3 p2p interface and IGP will take care LB.

hope this make sense ? if that answers your question ?