Many-to-Many Port Mirroring limitations and restrictions
You can use many-to-many port mirroring on both pure stacks and standalone boxes.
You cannot configure a monitor port (MTP) that is a mirrored port for another MTP. Frames mirrored to one MTP are not taken into account in MAC address-based mirroring on another MTP.
If you configure a port to be egress-mirrored in one instance, then that port cannot be egress-mirrored in another instance (to another MTP). Similarly, if you configure a port to be ingress-mirrored, then the system prohibits that port to be ingress-mirrored in another instance. The system allows a port to be ingress-mirrored in one instance and egress-mirrored in another.
The ports you configure as monitor ports may be allowed to participate in normal frame switching operation or be used as management ports, provided that you enable port mirroring with the allow traffic option.
You can configure up to four monitor ports.
You can configure multiple instances by using the existing interface in CLI or EDM. The system attaches one monitor port (MTP) to each instance. In some cases a monitor port can be used in more than one instance.
You cannot configure a port as a monitor port if it exists as part of an MLT group.
For MAC base modes: Asrc, Adst, AsrcBdst, AsrcBdstOrBsrcAdst, AsrcOrAdst and port based modes: XrxYtx, XrxYtxOrYrxXtx port-mirroring, you need to install filters to enable port mirroring. The application may not function in these modes if platform resource limits are reached.Note:
Each of the XrxorXtx, XrxOrYtx, ManyToOneRxTx modes needs twice the hardware resources of a usual port mirroring instance. This means whenever you use one or more of these modes, instead of configuring up to four port-mirroring instances, you can only configure up to:
- two instances, if both instances are of type XrxOrYtx or ManyToOneRxTx, in any combination
- three instances if one, and only one, of these instances is of type XrxorXtx or XrxOrYtx or ManyToOneRxTx
- four instances can be configured if two of these instances are of type XrxorXtx.