Which option is required for inline security group tag propagation?
A. Cisco Secure Access Control System
B. hardware support
C. Security Group Tag Exchange Protocol (SXP) v4
D. Cisco Identity Services Engine
Which option is required for inline security group tag propagation?
B.
With inline tagging, the SGT is embedded into the ethernet frame. The ability to embed the SGT within an ethernet frame does require specific hardware support. Therefore network devices that do not have the hardware support use a protocol called SXP (SGT Exchange Protocol). SXP is used to share the SGT to IP address mapping. This allows the SGT propagation to continue to the next device in the path.