Abstract: A Pseudo-Wire to Virtual Private Network Provider Edge (PW-VPN PE) router (300) has a pseudo-wire (PW) element (302), a virtual routing and forwarding (VRF) element (304) integrally coupled to the PW element, and a controller (306) for controlling operations of the PW and the VRF elements. The controller is programmed to receive (408-414) a layer 3 (L3) packet comprising a frame and an embedded L3 packet, and transmit (416) to a targeted network element on a virtual circuit a new frame with the embedded L3 packet.

Abstract: A system and method are disclosed for fault-tolerance in an inter-carrier network interface. A system that incorporates teachings of the present disclosure may include, for example, a PE-ASBR (Provider Edge-Autonomous System Boundary Router) (108, 138) having a communications interface (202) for internetworking with another MPLS-VPN (Multi-protocol Label Switching-Virtual Private Network) cluster (102, 132), and a controller (204). The controller can be programmed to exchange (302) routing information with a PE-ASBR within its own MPLS-VPN cluster and with a corresponding PE-ASBR of another MPLS-VPN cluster, and accept (334) a reroute of packet traffic away from a PE-ASBR of its MPLS-VPN cluster experiencing a fault.

Abstract: A computer-readable storage medium (102) is provided for managing end-to-end QoS (Quality of Service) policies in a communication network (100). The storage medium includes computer instructions for establishing (302) a plurality of QoS domains (108) between a plurality of packet switching technologies (102, 106. 110) operating with disparate QoS policies, each QoS domain having an ingress and egress boundary, remapping (303) a QoS policy of each packet exchanged between the ingress boundaries of the plurality of QoS domains, and restoring (309) the QoS policy of each packet exchanged between the egress boundaries of the plurality of QoS domains.

Abstract: A system and methods for automating membership discovery in a distributed computer network is presented. A first virtual circuit label switch path (LSP) associated with a first VPLS is established between a first multi tenant unit (MTU) and an attached provider edge (PE) device. A first label mapping message (LMM) is communicated over the first virtual circuit LSP and received at the PE device. The PE device broadcasts the LMM to a plurality of additional PE devices. In addition, methods for automating membership discovery for adding and deleting virtual private LAN service (VPLS) sites are presented. A virtual circuit forwarding equivalence class (VC-FEC) type packet utilized in the various methods and system is also disclosed.

Abstract: The present disclosure is generally directed to systems and methods associated with data communications. In a particular embodiment, a method of encapsulating data packets for use in a distributed computer network is disclosed. The method includes providing a data packet for transmission over the distributed computer network, the data packet selected from one of a customer data packet and an OAM data packet; and encapsulating the data packet with a medium access control outer packet.

Abstract: The present disclosure is directed to operations, administration, and maintenance related systems and methods associated with data communications. In a particular embodiment, an encapsulated operations, administration and maintenance (OAM) data packet for use in connection with a service provider network is disclosed. The encapsulated OAM data packet includes a service provider destination address and a service provider source address. The service provider destination address is associated with a destination node within the service provider network; and the service provider source address is associated with a source node within the service provider network.

Abstract: The present disclosure is generally directed to systems and methods associated with data communications. In a particular embodiment, a method for use of multi-protocol labels switching (MPLS) encapsulation with control word communicated over a distributed computer network is disclosed. The method includes providing MPLS virtual circuit label with the control word associated with a data packet selected from one of a customer data packet and an OAM data packet, and communicating the MPLS packet with control word and the data packet over the distributed computer network.

Abstract: Compounds having the formula ##STR1## methods for using such compounds to inhibit protein kinase C in animals, including man are useful as inhibitors of protein kinase C. Also disclosed are pharmaceutical compositions including such compounds and compounds having the formula.

Abstract: Compounds which are analogs of etoposide and which exhibit anti-tumor activity are disclosed. These compounds having the following structure: ##STR1## wherein R is selected from ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently selected from H, CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, i--C.sub.3 H.sub.7, C.sub.4 H.sub.9, CF.sub.3, OCH.sub.3, OC.sub.2 H.sub.5 , OC.sub.3 H.sub.7, OC.sub.4 H.sub.9, O--i--C.sub.3 H.sub.7, O--i--C.sub.4 H.sub.9, --OCH.sub.2 O--, --OCH.sub.2 CH.sub.2 O--, CH.sub.2 OH, C.sub.2 H.sub.4 OH, CH.sub.2 Cl C.sub.2 H.sub.4 Cl, CH.sub.2 F, C.sub.2 H.sub.4 F, CH.sub.2 OCH.sub.3, COCH.sub.3, COC.sub.2 H.sub.5, CO.sub.2 CH.sub.3, CO.sub.2 C.sub.2 H.sub.5, NO.sub.2, NH.sub.2, NH.sub.2.HCl, NH.sub.2.HAc, NH.sub.2.1/2H.sub.2 SO.sub.4 , NH.sub.2.1/3H.sub.3 PO.sub.4, N(CH.sub.3).sub.2, N(C.sub.2 H.sub.5).sub.2, OH, CN, N.sub.3, SO.sub.2 H, SO.sub.2 NH.sub.2 , SO.sub.