CN103379151B - A kind of flux exchange, Apparatus and system - Google Patents

Abstract

The embodiment of the present invention provides a traffic conversion method, device and system, which relate to the field of communication, and can reduce the forwarding traffic of an FC switch in a standard mode and improve system performance. The NPV mode FC switch receives the node identification information of the new registration node and the matching node sent by the standard mode FC switch, and generates a local forwarding table according to the node identification information, so that the NPV mode FC switch is between the new registration node and the matching node When performing traffic exchange, the exchanged traffic is directly forwarded according to the local forwarding table. The embodiment of the present invention is applied to traffic forwarding in FC SAN.

Description

A flow exchange method, device and system

technical field

The present invention relates to the communication field, in particular to a traffic exchange method, device and system.

Background technique

Fiber Channel (Fibre Channel, referred to as: FC) Storage Area Network (Storage Area Network, referred to as: SAN) is mainly composed of nodes with Host Bus Adapter (Host Bus Adapter, referred to as: HBA) card that is the host or storage and Fiber Channel network (FC Fabric ), the FC Fabric includes several standard-mode FC switches, and each standard-mode FC switch has a domain ID (domain ID). After the node is successfully registered on the FC Fabric, the FC Fabric will assign a node port ID (Node Port ID, N_Pord ID for short) to the node. The N_Port ID consists of 24 bits, of which only the upper 8 bits are The domain ID of the standard FC switch is used to distinguish the standard mode FC switch to which the node belongs. Therefore, the number of standard mode FC switches in an FC SAN network should theoretically not exceed 256, and due to routing technology and control plane data synchronization For other reasons, the number of FC switches in the standard mode generally does not exceed 50, which limits the scale of the FC SAN network. The prior art introduces a node port virtualization NPV (NodePort Virtualization, NPV for short) mode FC switch to expand the scale of the FC SAN network. The NPV mode FC switch is located between the node and the standard mode FC switch, which is equivalent to a proxy server without a domain ID, and is used for transparent transmission of traffic between the node and the standard mode FC switch.

All nodes in the FC SAN network exchange traffic with each other in accordance with the Zone (Zone) security mutual access mechanism, that is, only nodes in the same Zone can exchange traffic. Every time a Zone is defined, the administrator will synchronously deliver the Zone information to all standard-mode FC switches in the FC Fabric, and the Zone information includes node identification information of all nodes in the Zone. Since the FC switch in NPV mode does not have a domain ID, and the administrator sends zone information with the domain ID as the destination address, the FC switch in NPV mode cannot receive the zone information delivered synchronously.

When traffic is exchanged between two hosts under the same NPV mode FC switch, the traffic needs to be sent to the NPV mode FC switch first, and then sent to the standard mode FC switch to which it belongs, and the standard mode FC switch After confirming that the two hosts belong to the same zone, the received traffic is sent to the host for traffic exchange through the NPV mode FC switch. In this way, all traffic is sent to the standard-mode FC switch and then forwarded by the standard-mode FC switch. As a result, a large amount of traffic is concentrated on the standard-mode FC switch, causing network congestion and reducing network system performance.

Contents of the invention

Embodiments of the present invention provide a traffic forwarding method, device and system, which can reduce the forwarding traffic of an FC switch in a standard mode and improve system performance.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A method of traffic exchange comprising:

The node port virtualization NPV mode Fiber Channel FC switch receives the node identification information of the newly registered node and the matching node sent by the standard mode FC switch; register node;

The NPV mode FC switch generates a local forwarding table according to the node identification information of the newly registered node and the matching node, and the local forwarding table includes the node identification information of the newly registered node and the matching node for traffic exchange in pairs ;

The FC switch in NPV mode directly forwards the exchanged traffic according to the local forwarding table when the newly registered node exchanges traffic with the matching node.

A traffic forwarding method, comprising:

The standard mode Fiber Channel FC switch queries the node identification information of the matching node that has the same registered port as the newly registered node and belongs to the same Zone;

The standard mode FC switch sends the node identification information of the newly registered node and the matching node to the node port virtualization NPV mode FC switch through the registration port, so that the NPV mode FC switch generates a local forwarding table, Thus, the NPV mode FC switch directly forwards the exchanged traffic according to the local forwarding table when the newly registered node and the matching node perform traffic exchange; the local forwarding table includes two-by-two traffic exchange Node identification information of the newly registered node and the matching node.

An NPV mode FC switch, comprising:

The receiver is used to receive the node identification information of the new registration node and the matching node sent by the standard mode FC switch; the matching node is a node that is identical to the registration port of the new registration node and belongs to the same Zone;

A generating unit, configured to generate a local forwarding table according to the node identification information of the newly registered node and the matching node, where the local forwarding table includes the node identification information of the newly registered node and the matching node for traffic exchange in pairs;

A processor, configured to directly forward the exchanged traffic according to the local forwarding table when the newly registered node exchanges traffic with the matching node.

A standard mode FC switch, including:

The query unit is used to query the node identification information of the matching node that has the same registration port as the newly registered node and belongs to the same Zone;

The sender sends the node identification information of the new registration node and the matching node to the NPV mode FC switch through the registration port; so that the NPV mode FC switch generates a local forwarding table, so that the NPV mode FC When the new registration node and the matching node perform traffic exchange, the switch directly forwards the exchanged traffic according to the local forwarding table; the local forwarding table includes the new registration node and the Node ID information for the matching node.

A flow switching system includes the FC switch in NPV mode and the FC switch in standard mode.

The traffic exchange method, device and system provided by the above technical solution can allow the nodes in the same zone under the same NPV mode FC switch to directly exchange traffic through the NPV mode FC switch, instead of passing through the standard mode FC switch. switching, thereby reducing the forwarding traffic of the standard-mode FC switch and improving system performance.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flow chart of a traffic exchange method provided in Embodiment 1;

FIG. 2 is a schematic flow chart of another traffic exchange method provided in Embodiment 1;

FIG. 3 is a schematic flow chart of a traffic exchange method provided in Embodiment 2;

Fig. 4 is the structural block diagram of a kind of NPV mode FC switchboard that embodiment 2 provides;

Fig. 5 is the structural block diagram of another kind of NPV mode FC switchboard that embodiment 2 provides;

Fig. 6 is the structural block diagram of a kind of standard mode FC switch provided by embodiment 2;

Fig. 7 is the structural block diagram of another kind of standard mode FC switch provided by embodiment 2;

FIG. 8 is a traffic switching system provided by Embodiment 2.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1:

The embodiment of the present invention provides a traffic exchange method, which is used on the side of the FC switch in NPV mode. As shown in FIG. 1, the method includes the following steps:

101. The FC switch in the NPV mode receives the node identification information of the newly registered node and the matching node sent by the FC switch in the standard mode.

The FC SAN is mainly composed of nodes with HBA cards, that is, hosts or storage devices, and FC Fabric, which includes several standard-mode FC switches and NPV-mode FC switches. When there is a new node to access the FC SAN network, the NPV mode FC switch that is connected through the optical fiber will send a registration request to the standard mode FC switch in the FC Fabric; the standard mode FC switch and the NPV mode FC The switch also has an optical fiber directional connection at the corresponding port, and the standard mode FC switch is the standard mode FC switch to which the new access node belongs. After receiving the registration request of the new access node, the standard-mode FC switch to which the new access node belongs sends an N_Port ID to the new access node, indicating that the registration of the new access node is successful. Wherein, the first 8 bits of the N_Port ID are the address identification of the standard mode FC switch attributable, and the last 16 bits are the address identification assigned by the standard mode FC switch at the attribution to the new registration node, that is, the above-mentioned new access node, Indicates the address of the newly registered node.

The matching node is a registered node that has the same registration port as that of the newly registered node and belongs to the same Zone. The registration port described here is a port used by a standard FC switch to receive a registration request sent by a node. After the standard-mode FC switch allocates the N_Port ID to the new registration node, the standard-mode FC switch can query the matching node of the new registration node. The registration ports of the matching node and the new registration node are the same, and since each NPV mode switch is connected to a port of the standard FC switch through an optical fiber one-to-one, it can be confirmed that the matching node and the new registration node are in Under the same FC switch in NPV mode, register with the FC switch in standard mode through the same FC switch in NPV mode. If the matching node and the new registration node belong to the same Zone, it can be confirmed that the matching node and the new registration node can directly exchange traffic in pairs. It can be known from the above that the matching node is a node that can directly exchange traffic under the same NPV mode FC switch as the newly registered node. The standard mode FC switch can query the node identification information of the matching node. Then, the standard mode FC switch will send the node identification information of the newly registered node and the node identification information of the matching node to the NPV mode FC switch through the above-mentioned registration port and the optical fiber connecting the port, and the NPV The mode FC switch receives the node identification information of the newly registered node and the matching node sent by the standard mode FC switch.

102. The FC switch in NPV mode generates a local forwarding table according to the node identification information.

The NPV mode FC switch can generate a local forwarding table according to the received node identification information of the newly registered node and the matching node, and the local forwarding table includes the node identification information of the newly registered node and the node identification information of the matching node .

103. The FC switch in NPV mode directly forwards the exchanged traffic according to the local forwarding table when the newly registered node exchanges traffic with the matching node.

When the newly registered node needs to exchange traffic with a certain matching node, the newly registered node and the certain matching node may send the traffic to be exchanged to the NPV mode FC switch, and the NPV mode FC switch Querying the local forwarding table finds that the node identification information of the newly registered node and the node identification information of the certain matching node are in the same local forwarding table, so it is determined that the newly registered node matches the certain matching node Nodes can exchange traffic, and the FC switch in NPV mode can directly forward the traffic to the target node corresponding to the traffic. Directly forwarding the traffic to the target node mentioned here refers to directly forwarding the traffic to the target node without going through the standard mode FC switch. In this way, the traffic that needs to be forwarded does not need to be sent to the standard mode FC switch, and then forwarded by the standard mode FC switch, which can reduce the forwarding traffic of the standard mode FC switch and improve system performance.

The traffic exchange method provided by the embodiment of the present invention is also used on the side of the standard mode FC switch, as shown in Figure 2, the method includes the following steps:

201. The FC switch in standard mode queries node identification information of a matching node that has the same registered port as that of the newly registered node and belongs to the same Zone.

The FC SAN is mainly composed of nodes with HBA cards, that is, hosts or storage devices, and FC Fabric, which includes several standard-mode FC switches and NPV-mode FC switches. When there is a new node to access the FC SAN network, the NPV mode FC switch that is connected through the optical fiber will send a registration request to the standard mode FC switch in the FC Fabric; the standard mode FC switch and the NPV mode FC The switch also has an optical fiber directional connection at the corresponding port, and the standard mode FC switch is the standard mode FC switch to which the new access node belongs. After receiving the registration request of the new access node, the standard-mode FC switch to which the new access node belongs sends an N_Port ID to the new access node, indicating that the registration of the new access node is successful. Wherein, the first 8 bits of the N_Port ID are the address identification of the standard mode FC switch attributable, and the last 16 bits are the address identification assigned by the standard mode FC switch at the attribution to the new registration node, that is, the above-mentioned new access node, Indicates the address of the newly registered node.

The standard mode FC switch to which the new registration node belongs can query a matching node that has the same registration port as the new registration node and belongs to the same Zone. The registration port described here is the port used by the standard FC switch to receive the registration request sent by the node. Since each NPV mode switch is connected to a port of a standard FC switch through an optical fiber one-to-one, if the registered ports are the same, it can be confirmed that the matching node and the newly registered node are under the same NPV mode FC switch, yes registered with the standard mode FC switch through the same NPV mode FC switch. If the matching node and the new registration node belong to the same Zone, the matching node and the new registration node can directly exchange traffic two by two. It can be known from the above that the matching node and the newly registered node are nodes that can directly exchange traffic between two. The standard mode FC switch can query the node identification information of the matching node.

202. The standard mode FC switch sends the node identification information of the newly registered node and the matching node to the NPV mode FC switch through the registration port; so that the NPV mode FC switch generates a local forwarding table, so that the NPV mode When the newly registered node exchanges traffic with the matching node, the FC switch directly forwards the exchanged traffic according to the local forwarding table.

The local forwarding table includes node identification information of the newly registered node and the matching node capable of exchanging traffic two by two.

After the standard mode FC switch inquires the node identification information of the matching node, it will pass the node identification information of the newly registered node and the node identification information of the matching node through the above-mentioned registration port and the optical fiber connected to the port Send to the NPV mode FC switch. The FC switch in NPV mode can generate a local forwarding table accordingly, and the local forwarding table includes node identification information of the newly registered node and the matching node. Therefore, when the newly registered node needs to exchange traffic with a certain matching node, the newly registered node and the certain matching node can send the traffic to be exchanged to the NPV mode FC switch, so The NPV mode FC switch queries the local forwarding table and finds that the newly registered node and the certain matching node can perform traffic exchange, then the NPV mode FC switch can directly forward the traffic to the target node corresponding to the traffic, The directly forwarding the traffic refers to directly forwarding the traffic to the target node without passing through the standard mode FC switch. In this way, the traffic to be forwarded does not need to be sent to the standard-mode FC switch, and then forwarded by the standard-mode FC switch, which can reduce forwarding traffic on the standard-mode FC switch and improve system performance.

The traffic exchange method provided by the embodiment of the present invention can allow the NPV mode FC switch to directly forward the exchanged traffic according to the local forwarding table when the newly registered node and the matching node perform traffic exchange, without having to go through the standard mode FC switches forward traffic, reducing the forwarding traffic of standard-mode FC switches and improving system performance.

Example 2:

The embodiment of the present invention provides a flow switching method, which is an extension of the first embodiment above. As shown in Figure 3, the method comprises the following steps:

301. The standard mode FC switch receives and stores Zone information; the Zone information includes node identification information of all nodes in the same Zone.

In the FC SAN network, the administrator will pre-define the nodes with traffic exchange requirements as a zone, and all nodes in the zone can perform traffic exchange, and then the administrator will send the newly defined zone as zone information synchronously For all standard mode FC switches in the FC SAN network. The Zone information includes node identification information of all nodes in the same Zone, which means that nodes represented by all node identification information in the Zone information can exchange traffic with each other. The node identification information is commonly used as a World Wide Port Name (WWPN for short) or N_Port ID of a port. The standard mode FC switch stores the Zone information after receiving the Zone information.

302. The FC switch in NPV mode sends a query request to the FC switch in standard mode after listening to the information that the new registration node is successfully registered.

When a new node is to be connected to the FC SAN network, the NPV mode FC switch connected through the optical fiber will send a registration request to the standard mode FC switch in the FC Fabric; After the request, the N_Port ID information will be sent to the new registration node through the NPV mode FC switch, indicating that the registration of the new registration node is successful. After the NPV mode FC switch monitors the N_Port ID information, it may consider that it has heard the information that the new registration node is successfully registered; at this time, the NPV mode FC switch sends a query request to the standard mode FC switch.

303. The standard mode FC switch receives the query request and queries node identification information of a matching node that has the same registered port as the newly registered node and belongs to the same Zone according to the query request.

The standard mode FC switch that the new registration node belongs to can query the node identification information of the matching node that is the same as the registration port of the new registration node and belongs to the same Zone according to the received query request, and the registration port described here is a standard FC switch The port used to receive registration requests sent by nodes. Since each NPV mode switch is connected to a port of a standard FC switch through an optical fiber one-to-one, so the same registered port can confirm that the matching node and the new registered node are under the same NPV mode FC switch, through The same FC switch in NPV mode successfully applies for registration with the FC switch in standard mode. If the matching node and the new registration node belong to the same Zone, the matching node and the new registration node can directly exchange traffic two by two.

Optionally, the standard mode FC switch will send N_Port ID information to the new registration node after receiving the registration request from the new registration node, which indicates that the registration of the new registration node is successful. At this time, the standard mode FC switch will actively query the node identification information of the matching node that has the same registered port as the newly registered node and belongs to the same Zone.

304. The FC switch in standard mode sends the node identification information of the newly registered node and the matching node to the FC switch in NPV mode through a registration port.

After the standard mode FC switch inquires the node identification information of the matching node, it will pass the node identification information of the newly registered node and the node identification information of the matching node through the above-mentioned registration port and the optical fiber connected to the port Send to the NPV mode FC switch.

305. The NPV mode FC switch receives the node identification information and generates a local forwarding table according to the node identification information; so that the NPV mode FC switch performs traffic exchange with the matching node according to the The local forwarding table directly forwards the exchanged traffic.

The NPV mode FC switch can generate a local forwarding table according to the received node identification information of the newly registered node and the matching node, and the local forwarding table includes the information of the newly registered node and the matching node that can exchange traffic two by two. Node identification information. . When the newly registered node needs to exchange traffic with a certain matching node, the newly registered node and the certain matching node can send the traffic to be exchanged to the FC switch in NPV mode, and the NPV mode The FC switch discovers that the node identification information of the newly registered node and the node identification information of a certain matching node are in the same local forwarding table according to the local forwarding table query, so it determines that the newly registered node and the A matching node can directly perform traffic exchange, then the NPV mode FC switch can directly forward the traffic to the target node corresponding to the traffic, and the direct traffic forwarding refers to directly forwarding the traffic to target node. In this way, the traffic to be forwarded does not need to be sent to the standard-mode FC switch, and then forwarded by the standard-mode FC switch, which can reduce forwarding traffic on the standard-mode FC switch and improve system performance.

The embodiment of the present invention also provides an NPV mode FC switch for implementing the method shown in FIG. 1 . As shown in FIG. 4 , the FC switch in NPV mode includes a receiver 401 , a generating unit 402 , and a processor 403 .

The receiver 401 is configured to receive the node identification information of the newly registered node and the matching node sent by the FC switch in standard mode.

The matching node is a node that has the same registration port as the newly registered node and belongs to the same Zone. The standard-mode FC switch to which the newly registered node belongs may query a registered node having the same registration port as the newly registered node, and find out that the registered node and the newly registered node belong to the same Zone. The fact that the registration ports are the same may confirm that the matching node and the new registration node are under the same FC switch in NPV mode, and successfully registered with the FC switch in standard mode through the same NPV mode FC switch. If the matching node and the newly registered node belong to the same Zone, the registered node and the newly registered node can directly perform traffic exchange in pairs. The standard mode FC switch can query the node identification information of the matching node. Then, the standard mode FC switch will send the node identification of the newly registered node and the node identification information of the matching node to the NPV mode FC switch through the above-mentioned registration port and the optical fiber connected to the port, and the NPV The receiver 401 of the mode FC switch receives the node identification information of the newly registered node and the matching node sent by the standard mode FC switch.

The generating unit 402 is configured to generate a local forwarding table according to the node identification information, where the local forwarding table includes node identification information of the newly registered node and the matching node for traffic exchange in pairs.

The processor 403 is configured to directly forward the exchanged traffic according to the local forwarding table when the newly registered node exchanges traffic with the matching node.

The generating unit 402 of the NPV mode FC switch may generate a local forwarding table according to the node identification information, and the local forwarding table includes node identification information of the newly registered node and the matching node. When the newly registered node and a certain matching node need to exchange traffic, the newly registered node and the certain matching node may send the traffic to be exchanged to the processor 403 of the NPV mode FC switch, The processor 403 queries the local forwarding table and finds that the node identification information of the newly registered node and the node identification information of the certain matching node are in the same local forwarding table, so it is determined that the newly registered node and If the certain matching node can perform traffic exchange, the processor 403 can directly forward the traffic to a target node corresponding to the traffic. Directly forwarding the traffic to the target node mentioned here refers to directly forwarding the traffic to the target node without going through the standard mode FC switch. In this way, the traffic that needs to be forwarded does not need to be sent to the standard mode FC switch, and then forwarded by the standard mode FC switch, which can reduce the forwarding traffic of the standard mode FC switch and improve system performance.

Further, as shown in FIG. 5 , the FC switch in NPV mode further includes a listener 404 .

The listener 403 is configured to send a query request to the standard mode FC switch after listening to the information that the new registration node is registered successfully, so that the standard mode FC switch can query and newly register according to the query request. The node identification information of the matching nodes whose registered ports are the same and which belong to the same Zone.

When there is a new node to access the FC SAN network, the NPV mode FC switch that is connected through the fiber directionally sends a registration request to the standard mode FC switch in the FC Fabric; the standard mode FC switch receives the new registration node After the registration request, the FC switch in NPV mode will send N_Port ID information to the new registration node, indicating that the registration of the new registration node is successful. The listener 404 may listen to the N_Port ID information, that is, the information that the new registration node is successfully registered; at this time, the listener sends a query request to the standard-mode FC switch. Therefore, the standard mode FC switch queries the node identification information of the newly registered node and the matching node, and sends the node identification information to the NPV mode FC switch, so that the NPV mode FC switch The receiver 401 receives the node identification information of the newly registered node and the matching node sent by the standard mode FC switch.

The embodiment of the present invention also provides a standard mode FC switch. As shown in FIG. 6 , the standard mode FC switch includes a query unit 601 and a transmitter 602 .

The query unit 601 is configured to query node identification information of a matching node that has the same registration port as that of the newly registered node and belongs to the same Zone.

The FC SAN is mainly composed of nodes with HBA cards, that is, hosts or storage devices, and FC Fabric, which includes several standard-mode FC switches and NPV-mode FC switches. When there is a new node to access the FC SAN network, the NPV mode FC switch that is connected through the optical fiber will send a registration request to the standard mode FC switch in the FC Fabric; the standard mode FC switch and the NPV mode FC The switch also has an optical fiber directional connection at the corresponding port, and the standard mode FC switch is the standard mode FC switch to which the new access node belongs. After receiving the registration request of the new access node, the standard-mode FC switch to which the new access node belongs sends an N_Port ID to the new access node, indicating that the registration of the new access node is successful. Wherein, the first 8 bits of the N_Port ID are the address identification of the standard mode FC switch attributable, and the last 16 bits are the address identification assigned by the standard mode FC switch at the attribution to the new registration node, that is, the above-mentioned new access node, Indicates the address of the newly registered node.

The query unit 601 may be specifically configured to query node identification information of a matching node that has the same registration port as the new registration node and belongs to the same Zone after confirming that the registration of the new registration node is successful.

The query unit 601 of the standard mode FC switch to which the new registered node belongs can query the node identification information of a matching node that is the same as the registered port of the newly registered node and belongs to the same Zone, and the registered port described here is sent by the receiving node of the standard FC switch. The port used for registration requests. Since each NPV mode switch is connected to a port of a standard FC switch through an optical fiber one-to-one, so the same registered port can confirm that the matching node and the new registered node are under the same NPV mode FC switch, through The same FC switch in NPV mode successfully registers with the FC switch in standard mode. If the matching node and the new registration node belong to the same Zone, the matching node and the new registration node can directly exchange traffic two by two. After the standard mode FC switch confirms that the registration of the new registration node is successful, that is, the standard mode FC switch sends N_Port ID information to the new registration node, the query unit 601 can actively query the same registration port as the new registration node. Node ID information of matching nodes belonging to the same Zone.

The sender 602 sends the node identification information of the newly registered node and the matching node to the NPV mode FC switch through the registration port; so that the NPV mode FC switch generates a local forwarding table, so that the NPV mode FC switch When the new registration node and the matching node perform traffic exchange, directly forward the exchanged traffic according to the local forwarding table; the local forwarding table includes the new registration node and the Node ID information for the matching node.

After the standard mode FC switch inquires the node identification information of the matching node in the query unit 601, the transmitter 602 will pass the node identification information of the newly registered node and the node identification information of the matching node through the registration port and the connection The optical fiber of this port is sent to the FC switch in NPV mode. The FC switch in NPV mode may generate a local forwarding table according to these node identification information, and the local forwarding table includes node identification information of the newly registered node and the matching node. When the newly registered node needs to exchange traffic with a certain matching node, the newly registered node and the certain matching node can send the traffic to be exchanged to the FC switch in NPV mode, and the NPV mode The FC switch discovers that the node identification information of the newly registered node and the node identification information of a certain matching node are in the same local forwarding table according to the local forwarding table query, so it determines that the newly registered node and the A certain matching node can directly perform traffic exchange, and the NPV mode FC switch can directly forward the traffic to be exchanged to the target node corresponding to the traffic. The directly forwarding the traffic refers to directly forwarding the traffic to the target node without passing through the standard mode FC switch. In this way, the traffic to be forwarded does not need to be sent to the standard-mode FC switch, and then forwarded by the standard-mode FC switch, which can reduce forwarding traffic on the standard-mode FC switch and improve system performance.

Optionally, as shown in FIG. 7 , the query unit 601 specifically includes: a receiving subunit 6011 and a query subunit 6012 .

The receiving subunit 6011 is configured to receive the query request sent by the NPV mode FC switch after listening to the information that the new registration node is successfully registered.

The NPV mode FC switch will send a query request to the standard mode FC switch when listening to the information that the new registration node is successfully registered, that is, the standard mode FC switch sends N_Port ID information to the new registration node, and the standard mode FC switch sends a query request. The receiver 6011 receives the query request.

The query subunit 6012 is configured to query a matching node that has the same registration port as the newly registered node and belongs to the same Zone according to the query request.

The query subunit 6012 of the standard mode FC switch can query the node identification information of the matching node that is the same as the registration port of the newly registered node and belongs to the same Zone according to the received query request, and the registration port described here is a standard FC switch The port used to receive registration requests sent by nodes. Since each NPV mode switch is connected to a port of a standard FC switch through an optical fiber one-to-one, so the same registered port can confirm that the matching node and the new registered node are under the same NPV mode FC switch, through The same FC switch in NPV mode successfully applies for registration with the FC switch in standard mode. If the matching node and the newly registered node belong to the same Zone, the registered node and the newly registered node can directly exchange traffic two by two, and the query subunit 6012 can query the node of the matching node Identification information. Then the sender 602 of the standard mode FC switch can send the node identification information of the matching node and the node identification information of the newly registered node to the NPV mode FC switch.

The embodiment of the present invention also provides a flow switching system. As shown in FIG. 8 , the system includes: an FC switch 81 in NPV mode and an FC switch 82 in standard mode. The FC switch in NPV mode may be the FC switch in NPV mode as shown in FIG. 4 or FIG. 5 ; the FC switch in standard mode may be the FC switch in standard mode as shown in FIG. 6 or 7 .

The standard mode FC switch 82 is used to actively inquire about the node identification information of a matching node that is the same as the registration port of the new registration node and belongs to the same Zone after confirming that the registration of the new registration node is successful, and then pass the registration port through the registration port. Send the node identification information of the newly registered node and the matching node to the FC switch 81 in NPV mode. The NPV mode FC switch 81 receives the node identification information, and generates a local forwarding table according to the node identification information; so that the NPV mode FC switch performs traffic exchange according to the new registration node and the matching node. The local forwarding table directly forwards the exchanged traffic.

Of course, optionally, the NPV mode FC switch 81 can also send a query request to the standard mode FC switch after listening to the information that the new registration node has successfully registered; the standard mode FC switch can query according to the query request The node identification information of the matching node that is the same as the registration port of the newly registered node and belongs to the same Zone, and then sends the node identification information of the newly registered node and the matching node to the NPV mode FC switch through the registration port. The NPV mode FC switch 81 receives the node identification information, and generates a local forwarding table according to the node identification information; so that the NPV mode FC switch performs traffic exchange according to the new registration node and the matching node. The local forwarding table directly forwards the exchanged traffic.

The traffic conversion method, device and system provided by the embodiments of the present invention allow the NPV mode FC switch to directly forward the exchanged traffic according to the local forwarding table when the newly registered node and the matching node perform traffic exchange, without further Traffic forwarding is performed through standard mode FC switches, thereby reducing the forwarding traffic of standard mode FC switches and improving system performance.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (15)

1. a flow forwarding method, it is characterised in that including:

Node port virtualization NPV pattern Fibre Channel switch receives mode standard FC and hands over Change planes send new registration node and the node identification information of matched node；Described node identification information Including the address mark that described mode standard FC switch is corresponding node distribution, described address identifies For representing the address of corresponding node；Described matched node is and the registration end of described new registration node Mouthful identical and belong to the registered nodes of same subregion Zone；

Described NPV model F C switch is according to described new registration node and the node mark of matched node Knowledge information generates local forward table, and described local forward table includes carrying out two-by-two the described of flow exchange New registration node and the node identification information of described matched node；

Described NPV model F C switch flows at described new registration node and described matched node Directly the flow of exchange is forwarded according to described local forward table during amount exchange.

Method the most according to claim 1, it is characterised in that receiving mode standard FC Before the new registration node of switch transmission and the node identification information of matched node, described method is also Including:

Described NPV model F C switch is listening to the described successful information of new registration Node registry After, send inquiry request to described mode standard FC switch, so that described mode standard FC Switch is identical with the registered port of described new registration node according to the inquiry of described inquiry request and belongs to The node identification information of the described matched node of same Zone.

Method the most according to claim 1 and 2, it is characterised in that described node identification is believed Breath includes: only name WWPN in the whole world of port or node port identification N_Port ID.

4. a flow forwarding method, it is characterised in that including:

Mode standard Fibre Channel switch query identical with the registered port of new registration node and Belong to the node identification information of the matched node of same subregion Zone；Described node identification information includes Described mode standard FC switch is the address mark of corresponding node distribution, and described address mark is used for Represent the address of corresponding node；

Described mode standard FC switch by described registered port by described new registration node and institute The node identification information stating matched node is sent to node port virtualization NPV model F C switch, So that described NPV model F C switch generates local forward table, so that described NPV pattern FC switch is carried out when flow exchanges according to described at described new registration node and described matched node The flow of exchange is directly forwarded by ground forward table；Described local forward table includes entering two-by-two The described new registration node of row flow exchange and the node identification information of described matched node.

Method the most according to claim 4, it is characterised in that described inquiry saves with new registration The registered port of point is identical and belongs to the matched node of same Zone and specifically includes:

Described mode standard FC switch receives described NPV model F C switch listening to The inquiry request sent after stating the successful information of new registration Node registry；

Described mode standard FC switch is according to the note of the inquiry of described inquiry request with new registration node Volume port is identical and belongs to the matched node of same Zone.

Method the most according to claim 4, it is characterised in that described inquiry saves with new registration The registered port of point is identical and belongs to the matched node of same Zone and specifically includes:

Confirm described new registration Node registry success after, described mode standard FC switch query with The registered port of new registration node identical and belong to same Zone matched node node identification letter Breath.

7. according to the method described in any one of claim 4～6, it is characterised in that also include:

Described mode standard FC switch receives and stores Zone information；Described Zone information includes The node identification information of all nodes being in same Zone.

Method the most according to claim 7, it is characterised in that described node identification information bag Include: WWPN or N_Port ID.

9. a NPV model F C switch, it is characterised in that including:

Receptor, for receiving new registration node and the matched node that mode standard FC switch sends Node identification information；Described node identification information includes that described mode standard FC switch is for correspondence The address mark of node distribution, described address mark is for representing the address of corresponding node；Described Join node to be identical with the registered port of new registration node and belong to the node of same Zone；

Signal generating unit, raw for the node identification information according to described new registration node and matched node Local forward table, described local forward table is become to include the described new registration joint carrying out flow exchange two-by-two Point and the node identification information of described matched node；

Processor, for the root when described new registration node and described matched node carry out flow exchange Directly the flow of exchange is forwarded according to described local forward table.

NPV model F C switch the most according to claim 9, it is characterised in that also Including:

Audiomonitor, for after listening to the described successful information of new registration Node registry, to described Mode standard FC switch sends inquiry request, so that the looking into of described mode standard FC switch Ask unit inquire about identical with the registered port of new registration node according to described inquiry request and belong to same The described node identification information of the described matched node of Zone.

11. 1 kinds of mode standard FC switches, it is characterised in that including:

Query unit, for inquiring about identical with the registered port of new registration node and belonging to same Zone The node identification information of matched node；Described node identification information includes that described mode standard FC is handed over Changing planes the address mark for corresponding node distribution, described address mark is for representing the ground of corresponding node Location；

Transmitter, by described registered port by described new registration node and the joint of described matched node Point identification information is sent to NPV model F C switch；So that the exchange of described NPV model F C Machine generates local forward table, so that described NPV model F C switch is at described new registration node When carrying out flow exchange with described matched node according to described local forward table direct flow to exchange Forward；Described new registration node that described local forward table includes carrying out flow exchange two-by-two and The node identification information of described matched node.

12. mode standard FC switches according to claim 11, it is characterised in that institute State query unit to specifically include:

Receive subelement, be used for receiving described NPV model F C switch and listening to described new note The inquiry request sent after the volume successful information of Node registry；

Inquiry subelement, for the registered port according to the inquiry of described inquiry request with new registration node Identical and belong to the matched node of same Zone.

13. mode standard FC switches according to claim 11, it is characterised in that institute State query unit specifically for, after confirming the success of described new registration Node registry, inquiring about and new registration The registered port of node is identical and belongs to the node identification information of matched node of same Zone.

14. mode standard FC switches according to claim 12, it is characterised in that institute State reception subelement to be additionally operable to receive and store Zone information；Described Zone information includes being in together The node identification information of all nodes in one Zone.

15. 1 kinds of flow exchange systems, it is characterised in that include NPV model F C switch and Mode standard FC switch；

Described NPV model F C switch is NPV model F C described in claim 9 or 10 Switch；

Described mode standard FC switch is the exchange of claim 11～14 any one mode standard FC Machine.