ā05-04-2024 03:32 AM
Hi,
I have 2 x C9500-24Y4C switches using 2 x SVl links. For Dual Active Detection I have 2 separate physical links and the option to use a C9300 switch with a PortChannel running ePAgP to the C9500 switches.
Given the various options what is the Cisco recommended High Availability (HA) solution ...DAD and/or ePAgP?
If using both, what is the HA priority solution for C9500 switches?
If only DAD is selected, would it be best to remove ePAgP from the PortChannel and go with LACP?
Thanks in advance.
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ā05-05-2024 11:28 AM
Sure that is best practice if the device near by and same location.
if that helpful and no further assistance required, we mark as resolved, so this helps for other community members.
ā05-04-2024 04:26 AM
If they are same location have near by you can plug them directly that is best option - less dependency on other devices in the path.
I have quite a lot deployment of SVL - i use directly connected each other for DAD - rather going via another Layer 2 switch.
check some guide lines :
ā05-05-2024 09:59 AM
Thank you BB for your response, I will stick with DAD directly connected links and remove the ePAgP options/
Thanks again Rassic
ā05-05-2024 10:16 AM - edited ā05-05-2024 10:16 AM
I will check my note but as I remember
LACP SVL + DAD
Or
PAgP SVL + enhance PAgP
So the enhance PAgP is work like DAD as fast heartbeat' this enhance feature is missing from LACP so we use DAD in separate link.
That all as I remember
MHM
ā05-05-2024 12:54 PM
as I mention before, you can use DAD if you use LACP in SVL or you can use ePAgP if you use PAgP in SVL
ā05-05-2024 11:28 AM
Sure that is best practice if the device near by and same location.
if that helpful and no further assistance required, we mark as resolved, so this helps for other community members.
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