When troubleshooting complex operational problems, customer packets can be analyzed as they traverse the network. The Nokia service mirroring feature provides the capability to mirror customer packets to allow for troubleshooting and offline analysis. This capability extends beyond troubleshooting services. Telephone companies have the ability to obtain itemized calling records and wire-taps where legally required by investigating authorities. The process can be complex and costly to carry out on data networks. Service mirroring simplifies these tasks and reduces costs by centralizing analysis tools and using skilled technicians.
Original packets are forwarded while copies are sent out of the mirror source port to the mirror destination port. Service mirroring allows an operator to see the actual traffic on a customer service using a network analyzer (sniffer) in a central location. In many cases, this reduces the need for a separate, costly overlay sniffer network.
Mirroring is supported on the following 7210 SAS platforms:
7210 SAS-D, 7210 SAS-Dxp, and 7210 SAS-K 2F1C2T support local mirroring only
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C support both local and remote mirroring
The following figure shows an example of service mirroring.
