The systems and methods that maintain an IP address of a container when the container is moved from a first node to a second node in a data center are provided. Each node includes a local controller which is communicatively coupled to the central controller. The local controller generates an IP address for a container that executes on the first node. A label unique to the container is also generated on the first node. The local controller then synchronizes the IP address and the label of the container with the central controller. The central controller then passes the IP address and the label to the second node when the container is moved from the first node to the second node, and ensures that the IP address of the container remains the same before and after the move.

The systems and methods that maintain an IP address of a container when the container is moved from a first node to a second node in a data center are provided. Each node includes a local controller which is communicatively coupled to the central controller. The local controller generates an IP address for a container that executes on the first node. A label unique to the container is also generated on the first node. The local controller then synchronizes the IP address and the label of the container with the central controller. The central controller then passes the IP address and the label to the second node when the container is moved from the first node to the second node, and ensures that the IP address of the container remains the same before and after the move.

The present disclosure proposes network elements, methods at the network elements for facilitating reuse of IP address, a telecommunications system comprising the network elements. The method at a first network element for facilitating reuse of an IP address at multiple UEs comprising a first UE comprises: transmitting, to a second network element, a first request message associated with the first UE, the first request message comprising the IP address and a first indicator which, in conjunction with the IP address, uniquely identifies the first UE.

The present disclosure proposes network elements, methods at the network elements for facilitating reuse of IP address, a telecommunications system comprising the network elements. The method at a first network element for facilitating reuse of an IP address at multiple UEs comprising a first UE comprises: transmitting, to a second network element, a first request message associated with the first UE, the first request message comprising the IP address and a first indicator which, in conjunction with the IP address, uniquely identifies the first UE.

An address management method, system, and device to avoid a problem that a same Internet Protocol (IP) address is assigned to different packet data unit (PDU) sessions and to effectively use IP addresses in an address pool. The method includes: obtaining, by a session management network element, an identifier of a user plane function network element serving a terminal and session information of the terminal; determining, by the session management network element based on the identifier of the user plane function network element and the session information, an address pool identifier corresponding to the session; sending, by the session management network element, the address pool identifier to a server, where the address pool identifier is used to assign an IP address to the session; and receiving, by the session management network element from the server, the IP address corresponding to the session.

An address management method, system, and device to avoid a problem that a same Internet Protocol (IP) address is assigned to different packet data unit (PDU) sessions and to effectively use IP addresses in an address pool. The method includes: obtaining, by a session management network element, an identifier of a user plane function network element serving a terminal and session information of the terminal; determining, by the session management network element based on the identifier of the user plane function network element and the session information, an address pool identifier corresponding to the session; sending, by the session management network element, the address pool identifier to a server, where the address pool identifier is used to assign an IP address to the session; and receiving, by the session management network element from the server, the IP address corresponding to the session.

An available network address is acquired from a network address resource pool associated with the application system according to determination that a workload at a set of network ports of the application system meets a predetermined extension condition, the network address resource pool comprising network addresses configured to be assigned to the application system. A network port available at the application system is selected. A communication channel for accessing the application system is established based on the network address and the network port. According to determination that an access request for accessing the application system is received from an access device, the access request is responded to by using the communication channel. The communication channel provided by the application system to the access device can be dynamically adjusted in real time according to a workload related to data access of the application system.

A method in which a communication device can be configured with a MAC address so that when the user logs into a network environment using a communication device from among a number of communication devices a MAC address is assigned to the user and is specific to the user. The MAC address assignment can be used for pairing with a communication device assigned to the user (e.g. a near-field communication device). A database containing MAC addresses can be connected to communication devices through a network and can provide user-specific MAC addresses that are readable into or otherwise transmittable to a predetermined communication device when a user logs into the network. The database can be managed by a server or other computer device of the network.

A method in which a communication device can be configured with a MAC address so that when the user logs into a network environment using a communication device from among a number of communication devices a MAC address is assigned to the user and is specific to the user. The MAC address assignment can be used for pairing with a communication device assigned to the user (e.g. a near-field communication device). A database containing MAC addresses can be connected to communication devices through a network and can provide user-specific MAC addresses that are readable into or otherwise transmittable to a predetermined communication device when a user logs into the network. The database can be managed by a server or other computer device of the network.

Techniques are presented herein for providing a persistent external Internet Protocol (IP) address for extra-cluster services. One example involves initiating, in a cluster, a first pod with a label that identifies a service. The first pod is configured to provide the service to one or more network entities outside the cluster. The first pod is assigned an IP address configured for communicating outside the cluster. A mapping of the service to the IP address is stored. In response to a determination that the service has been disrupted, a second pod is initiated in the cluster with the label that identifies the service. The second pod is configured to provide the service to the one or more network entities outside the cluster. Based on the mapping and the label that identifies the service, the IP address is assigned to the second pod.