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A method and apparatus for address allocation

An allocation method and address technology, applied in the distributed field, can solve problems such as occupancy, less IPv4 addresses, and inability to configure multiple clients

Active Publication Date: 2018-12-11
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the service network cards on each entry node in the distributed storage network use the IP address of the same network segment to communicate, and there are only 254 IPv4 addresses in a 24-bit network segment at most, and the service network card on each entry node Both need to allocate two IPv4 addresses (one virtual IPv4 and one real IPv4). Therefore, when the number of entry nodes is large, a large number of IPv4 addresses under the network segment will be occupied, leaving the IPv4 addresses used by clients under the same network segment. Very few, resulting in the inability to configure multiple clients under this network segment, which cannot meet the usage requirements

Method used

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  • A method and apparatus for address allocation
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  • A method and apparatus for address allocation

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Embodiment Construction

[0030] In related technologies, when the CTDB technology is applied to a distributed storage scenario, a CTDB process is deployed on each entry node. The CTDB process is mainly used to manage and maintain the IP address status of the service network card in the entry node, so the CTDB process is also called a management process in this application. Multiple entry nodes deployed with CTDB processes form a CTDB cluster. In order to realize the communication between CTDB processes in the cluster, a process communication network card is also provided on the entry node. CTDB processes in the cluster maintain the same virtual IPv4 address resource pool. A node will be elected in the cluster as the master node master of CTDB; the master can assign the virtual IPv4 address in the virtual IPv4 address resource pool to each entry node in the cluster, and the service network card on the entry node uses the assigned virtual IPv4 address and Clients communicate.

[0031]When the service...

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Abstract

The present application provides an address allocation method and apparatus in which a sixth version of Internet Protocol Version 6 (IPv6) address is preconfigured on a service network card of an ingress node. IPv6 addresses are used instead of the real IPv4 addresses assigned to the serving network card, the allocation process of virtual IP address is completed, so that all the service network cards on the entrance nodes in the cluster can occupy only one virtual IPv4 address on average, reduce the occupation of IPv4 address, and leave more IPv4 addresses under the same network segment for the client to use, so as to meet the use needs of users.

Description

technical field [0001] The present application relates to the field of distributed technology, and in particular, to an address allocation method and device. Background technique [0002] The distributed storage system is composed of a large number of hosts interconnected through the network, and provides storage services as a whole to the outside world. A distributed storage system generally includes multiple entry nodes and multiple storage nodes. The entry node is used to realize the access control of the client to the distributed storage system externally, and to realize the transmission of information and data between the client and the storage node internally. Each ingress node will typically have a service NIC for communicating with clients. The client communicates with the entry node through the Internet Protocol Version 4 (IPv4) address of the service network card to access the distributed storage system; once there is a problem with the service network card, the ...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/5007H04L2101/686
Inventor 徐森淼
Owner NEW H3C TECH CO LTD