摘要:
A first network device is configured to originate an actual route by sending a multicast join message to a particular next-hop network device, and in conjunction with originating the actual route, to generate an empty route associated with the next-hop network device for use in limiting a number of withdrawal messages that would otherwise result upon a failure in the actual route. The first network device may be further configured to generate an unreachability indicator message for the empty route indicating that the next-hop network device is unreachable responsive to the failure in the actual route, and to send the unreachability indicator message for the empty route to one or more additional network devices, with the unreachability indicator message causing each such additional network device to delete multiple actual routes to the next-hop network device that are represented by the empty route.
摘要:
A charging detail record transmission capability is provided herein. A mobile gateway (MG) generates charging detail records (CDRs) intended for delivery to a charging gateway function (CGF). The CDRs are propagated toward both a first and second charging data function (CDFs). The first and second CDFs buffer the CDRs. The first CDF is configured for propagating CDRs toward the CGF. The second CDF is configured for propagating CDRs toward the CGF when the first CDF fails. The CGF is configured for acknowledging receipt of CDRs to the first or second CDF from which the CDRs are received. The first CDF is configured for acknowledging, to the second CDF, receipt of acknowledgment messages from the first CDF. The second CDF is configured for, upon failure of the first CDF, initiating a process for determining which of the CDRs buffered at the second CDF need to be propagated to the CGF in order to ensure that none of the CDRs generated by the MG are lost due to the failure of the first CDF.
摘要:
Various exemplary embodiments relate to a method and related network node including one or more of the following: establishing, at the network node, a first Child Link Aggregation Group (CLAG), wherein the first CLAG includes at least one link to a first downstream node; establishing, at the network node, a second CLAG, wherein the second CLAG includes at least one link to a second downstream node; establishing, at the network node, a Parent Link Aggregation Group (PLAG), wherein the PLAG includes the first CLAG and the second CLAG; receiving, at the network node, a packet including an address of a destination of the packet; determining that the destination of the packet is associated with the PLAG; and transmitting the packet over both the first CLAG and the second CLAG.
摘要:
A system and method converting a unicast client request into a multicast client request is provided, the method comprising: receiving the unicast client request; mapping the unicast client request destination IP address and unicast client request destination port to a multicast record, wherein the multicast record contains a multicast destination internet protocol (IP) address and wherein the multicast destination IP address corresponds to the unicast client request destination IP address and unicast client request destination port; and transmitting the multicast client request that mirrors the received unicast client request to a plurality of destination servers using the multicast destination IP address that corresponds to the unicast client request destination IP address and unicast client request destination port.
摘要:
A multicast stream is received. At a non-designated router, a multicast stream is received with respect to which the non-designated router is not a designated router responsible for sending the multicast stream to a host. The received multicast stream is discarded.
摘要:
A charging detail record transmission capability is provided herein. A mobile gateway (MG) generates charging detail records (CDRs) intended for delivery to a charging gateway function (CGF). The CDRs are propagated toward both a first and second charging data function (CDFs). The first and second CDFs buffer the CDRs. The first CDF is configured for propagating CDRs toward the CGF. The second CDF is configured for propagating CDRs toward the CGF when the first CDF fails. The CGF is configured for acknowledging receipt of CDRs to the first or second CDF from which the CDRs are received. The first CDF is configured for acknowledging, to the second CDF, receipt of acknowledgment messages from the first CDF. The second CDF is configured for, upon failure of the first CDF, initiating a process for determining which of the CDRs buffered at the second CDF need to be propagated to the CGF in order to ensure that none of the CDRs generated by the MG are lost due to the failure of the first CDF.
摘要:
A first network device adapted for communication with one or more other network devices is configured to originate a first route identifying a tunnel for carrying traffic for a multicast, to originate a second route specifying a leaf information requirement for the multicast but not identifying a tunnel for carrying traffic for the multicast, and to track a plurality of receivers of the multicast based at least in part on leaf information received from the multicast receivers responsive to the specified leaf information requirement of the second route. The first route may comprise an inclusive route having a tunnel attribute that identifies an inclusive tunnel for the multicast and the second route may comprise a selective route having a tunnel attribute configured to indicate that it carries no tunnel information. Multicast traffic can be switched between an inclusive tunnel and a selective tunnel responsive to the multicast receiver tracking.
摘要:
A first network device comprises a service routing element and a client routing element. The service routing element is configured with a first anycast rendezvous point address so as be an anycast rendezvous point peer with at least a second network device in a service routing domain. The client routing element is configured with a second anycast rendezvous point address so as to be an anycast rendezvous point peer with at least a third network device in a client routing domain. The first network device receives in its service routing element from a service routing element of the second network device a register message identifying a multicast source, and provides at least a portion of the register message from its service routing element to its client routing element in a manner that allows the third network device to learn the identity of the multicast source from the client routing element.
摘要:
A method for detecting faults associated with a tunnel delivering multicast traffic from a source provider edge router (PE) to each of a plurality of destination PEs, the method using a routing protocol such as BGP to communicate route information to destination PEs, and a fault detection protocol such as BFD to detect tunnel faults.