Mirrored traffic is captured on the
ingress or egress leaf switch and carried on a separate set of links to a separate
add-on mirror switch.
One port is reserved on each fabric
leaf and border leaf switch, and connected to the mirror switch through separate OOB
cabling.
EFA configures basic mirroring
sessions and actions on fabric switches.
Advanced configuration on the mirror
switch is handled separately, not by EFA.
Connectivity between the TAP (traffic
access point) sink (a class or function designed to receive incoming events from
another object or function.) and the mirror switch can be configured and customized
separately through OOB mechanisms.
Perform demultiplexing on sessions
involving traffic access (TAP) points, using filtering on packet header fields in
the sink application
100Gbps links are required between
the mirror switch and each fabric switch.
The mirror switch may be an 8720 or a
specialized packet broker with advanced functions.
There are three types of out-of-band traffic mirroring:
