The following commands are supported for debug configuration:
ingress-label
ip-filter
ipv6-filter
isa-aa-group
mac-filter
port
sap
subscriber
The following commands are supported for config>mirror>mirror-source:
ip-filter
ipv6-filter
mac-filter
port
sap
subscriber
Subscriber mirroring applies only to the 7750 SR, 7450 ESS, 7750 SR-s, 7750 SR-e and 7750 SR-a platforms. Enhanced subscriber management associates subscriber hosts with queuing and filtering resources in a shared SAP environment. Mirroring used in subscriber aggregation networks for lawful intercept and debugging is required. Subscriber mirroring capability allows the match criteria to include a subscriber ID.
Subscriber mirroring can also be based on the IP family and host type. The IP family determines if only IPv4 or IPv6 addresses should be mirrored and the host type determines if only IPoE or PPP hosts should be mirrored from the subscriber. To use the IP family and host type, the SAP anti-spoof filter must be set to ip-mac. If subscriber mirroring is performed on the L2TP LAC and the IP family is configured as IPv6, no traffic is mirrored for the PPPoE session, even if the LAC subscriber is dual stack. For L2TP LAC, it is recommended that the IP family not be configured or be configured for IPv4 only.
Subscriber mirroring creates a mirror source with subscriber information as match criteria. Specific subscriber packets can be mirrored when using ESM with a shared SAP without prior knowledge of their IP or MAC addresses and without concern that they may change. The subscriber mirroring decision is more specific than a SAP. If a SAP (or port) is placed in a mirror and a subscriber host of which a mirror was configured is mirrored on that SAP, packets matching the subscriber host are mirrored to the subscriber mirror destination.
The mirroring configuration can be limited to specific forwarding classes used by the subscriber. When a forwarding class (FC) map is placed on the mirror, only packets that match the specified FCs are mirrored. A subscriber can be referenced in maximum two different mirror-destinations: one for ingress and one for egress.
Subscriber-based criteria in a mirror source remains in the mirror or LI source configuration even if the subscriber is deleted, removed, or logged off. When the subscriber returns (is configured, created, or logged in) the mirroring resumes. This also implies that a subscriber can be configured as a mirror or LI source before the actual subscriber exists on the node and before the subscriber ID is active (the mirroring starts when the subscriber is created or logs in and the subscriber ID becomes active).