Abstract: Implementations generally relate to network services. In some implementations, a method includes providing a network service having a service mode and a service type. The method further includes generating a network service advertisement message including a service identifier, a service mode portion, and a service type portion. The method further includes-forwarding the network service advertisement message from a first system to one or more other systems via a network. The method further includes-incrementing a counter corresponding to a service mode and a service type pair of each network service advertisement message having a same service identifier. The method further includes, when the counter corresponding to a service mode and a service type pair reaches a predetermined value, blocking configuration of another service having the same service identifier value, service mode and service type as that corresponding to the counter that reached the predetermined value.

Abstract: Systems, methods and computer readable media for network loop detection and prevention are described. Some implementations can include a computerized method comprising detecting, at a first switch, a loop condition in a network, and generating, at the first switch, a localize loop message having an instance count and a path list. The method can also include setting, at the first switch, the instance count of the localize loop message to a first value, and transmitting, from the first switch, the localize loop message to a second switch. The method can further include detecting, at the second switch, a loop in the network; and sending, from the second switch, a localize loop response message to the first switch.

Abstract: Methods, systems and computer readable media for network service type and mode advertisement are described. In some implementations, a method can include providing a network service having a service mode and a service type, and generating a network service advertisement message including a service identifier, a service mode portion and a service type portion. The method can also include populating the service mode portion with a first value corresponding to a service mode of the network service and populating the service type portion with a second value corresponding to a service type of the network service. The method can further include forwarding the network service advertisement message from a first system to one or more other systems via a network.

Abstract: Some implementations provide a capability of limiting or blocking configuration of network services based on network service mode and type advertisements. An example method can include providing a network service having a service mode and a service type, and generating a network service advertisement message including a service identifier, a service mode portion and a service type portion. The method can also include populating the service mode portion with a first value corresponding to a service mode of the network service and populating the service type portion with a second value corresponding to a service type of the network service. The method can further include forwarding the network service advertisement message from a first system to one or more other systems via a network.

Abstract: A method, system and computer readable medium for security key generation in link aggregation group topologies. The method can include performing, using one or more processors, authentication on each port of a plurality of ports in a link aggregation group. The method can also include deriving, using the one or more processors, a connectivity association key for the link aggregation group. The method can further include computing, using the one or more processors, a security association key for each port in the plurality of ports, the security association key being based on the connectivity association key for the link aggregation group.

Abstract: Methods, systems and computer readable media for network service type and mode advertisement are described. In some implementations, a method can include providing a network service having a service mode and a service type, and generating a network service advertisement message including a service identifier, a service mode portion and a service type portion. The method can also include populating the service mode portion with a first value corresponding to a service mode of the network service and populating the service type portion with a second value corresponding to a service type of the network service. The method can further include forwarding the network service advertisement message from a first system to one or more other systems via a network.

Abstract: Systems, methods and computer readable media for network loop detection and prevention are described. Some implementations can include a computerized method comprising detecting, at a first switch, a loop condition in a network, and generating, at the first switch, a localize loop message having an instance count and a path list. The method can also include setting, at the first switch, the instance count of the localize loop message to a first value, and transmitting, from the first switch, the localize loop message to a second switch. The method can further include detecting, at the second switch, a loop in the network; and sending, from the second switch, a localize loop response message to the first switch.

Abstract: A method, system and computer readable medium for security key generation in link aggregation group topologies. The method can include performing, using one or more processors, authentication on each port of a plurality of ports in a link aggregation group. The method can also include deriving, using the one or more processors, a connectivity association key for the link aggregation group. The method can further include computing, using the one or more processors, a security association key for each port in the plurality of ports, the security association key being based on the connectivity association key for the link aggregation group.