In some scenarios, or when multiple services are configured on the same port, specifying the port does not provide sufficient resolution to separate traffic. In Nokia’s implementation of mirroring, multiple source mirroring parameters can be specified to further identify traffic.
Mirroring of packets matching specific filter entries in an IP or MAC filter can be applied to refine what traffic is mirrored to flows of traffic within a service. The IP criteria can be combinations of:
source IP address/mask
destination IP address/mask
IP Protocol value
source port value (for example, UDP or TCP port)
destination port value (for example, UDP or TCP port)
DiffServ Code Point (DSCP) value
ICMP code
ICMP type
IP fragments
TCP ACK set/reset
TCP SYN set/reset
The MAC criteria can be combinations of:
IEEE 802.1p value/mask
source MAC address/mask
destination MAC address/mask
Ethernet Type II Ethernet type value
The list of packet fields that are available to match packets in IP and MAC ACLs for different platforms is different. For more information about the lists of packet fields available on different platforms, see the 7210 SAS-Mxp, R6, R12, S, Sx, T Router Configuration Guide.