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DTCP-Initiated Traffic Mirroring Process
Figure 1 shows the process for a DTCP-initiated subscriber mirroring operation.
Figure 1: DTCP-Initiated Subscriber Secure Policy Model
1 — The LEA sends provisioning information for a subscriber
whose traffic is to be mirrored over the HI-1 interface to the mediation
device. | 5 — As intercept-related events occur, the IAP sends the
events in SNMP traps over the INI-2 interface to the mediation device. |
2 — The mediation device sends a DTCP ADD message that
contains provisioning information over the INI-1 interface to the
IAP (the router). | 6 — The mediation device provides the intercept-related
events over the HI-2 interface to the LEA. |
3 — The IAP creates a subscriber secure policy based on
information in the DTCP ADD message. If the IAP receives the DTCP
ADD before the subscriber logs in, mirroring begins when the subscriber
logs in. If the router receives the DTCP ADD after the subscriber
logs in, mirroring begins when the ADD message is received. | 7 — The IAP sends the mirrored content to the mediation
device over the INI-3 interface. |
4 — The IAP sends the original subscriber traffic to its
intended destination. | 8 — The mediation device sends mirrored content over the
HI-3 interface to the LEA. |
