11-11-2018 06:23 PM
I see these terms get thrown around a lot. In my cisco novice mind im assuming
data = all the data packets flowing through the switch.
control = not sure. assuming the protocols that control the traffic ??
Management = the traffic flowing through the management interface ??? not sure either.
can someone help me understand them?
11-11-2018 09:13 PM
11-11-2018 09:30 PM - edited 11-11-2018 09:31 PM
I look at it like this:
data plane: the hardware and logic required to process packets, for instance from eth1/16 to eth 1/1 on a nexus switch. if an ethernet frame goes between these ports only the cam table is used and the frame is simply switched without the intervention of the control plane.
the control plane, where the configuration lives, process traffic for instance if it need to router traffic or encapsulate it into IPSEC.
management plane, all that is needed to manage the device. firewall can have a dedicated port for that.
read up on ISSU on a nexus switch, this gives you an inside of how the data and control plan can work independently
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