Entry aggregation method in SPBM (shortest path bridging MAC mode) network and equipment

A network and device technology, applied in the field of table entry aggregation, which can solve the problems of low search efficiency and long time to find table entries, etc.

Active Publication Date: 2014-07-23
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The present application provides a table item aggregation method and device in an SPBM network to solve the pr

Method used

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  • Entry aggregation method in SPBM (shortest path bridging MAC mode) network and equipment
  • Entry aggregation method in SPBM (shortest path bridging MAC mode) network and equipment
  • Entry aggregation method in SPBM (shortest path bridging MAC mode) network and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The entry aggregation method in the SPBM network of the embodiment of the present application includes the following parts:

[0065] 1. The process of the client applying for an IP address from the address allocation server

[0066] Such as image 3 As shown, in the process of the client applying for an IP address from the address allocation server, the operations performed by the address allocation server include the following steps:

[0067] Step S101, receiving a DHCP DISCOVER (discovery) message sent by the client through the access layer switch;

[0068] Step S102, assigning an IP (Internet Protocol, Internet Protocol) address to the client, and assigning a proxy MAC address to the client according to a predetermined assignment rule;

[0069] Among them, the predetermined allocation rules may be: the proxy MAC addresses allocated to the clients in the same user network belong to the same MAC address segment, and other content allocation rules may be preset accord...

Embodiment 2

[0128] by Figure 4 The illustrated SPBM network is taken as an example to describe the processing flow of the method in the first embodiment above. exist Figure 4 In the SPBM network shown, BEB1 is connected to user network 1, BEB2 is connected to user network 2, BEB3 is connected to user networks 3 and 4, and BEB4 is connected to user networks 5 and 6. Each of the user networks 1-6 includes: an access layer switch, a client connected thereto, and an address allocation server (none of which are shown).

[0129] Taking client 1 in user network 1, the address assignment server is a DHCP server as an example, describe in detail the process of the client applying for an IP address from the address assignment server. This process includes the following four stages:

[0130] (1) Discovery phase, that is, the phase where the client looks for the DHCP server.

[0131] Client 1 sends a DHCP DISCOVER message in broadcast mode, and the source MAC address in the message is 2345-8340-...

Embodiment 3

[0162] For the method in the first embodiment above, the embodiment of the present application provides a BEB device, an access layer switch, and an address allocation server.

[0163] Such as Figure 5 As shown, the BEB equipment in the SPBM network includes the following modules:

[0164] The receiving module 101 is used to receive the Ethernet message sent by the access layer switch; it is also used to receive the aggregated MAC forwarding entry synchronized by other BEB devices in the SPBM network;

[0165] The search module 102 is used to search for a matching entry in the MAC forwarding table according to the source MAC address of the Ethernet message after the receiving module 101 receives the Ethernet message of a client sent by the access layer switch, wherein, The source MAC address of the Ethernet message is the proxy MAC address assigned by the address assignment server to the client; it is also used for forwarding table entries based on the aggregated MAC when th...

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Abstract

The invention discloses an entry aggregation method in a SPBM (shortest path bridging MAC mode) network and equipment. The SPBM network comprises BEB (backbone edge bridge) equipment and a user network connected with the BEB equipment. The user network comprises an access layer switch, and a client and an address allocation server connected with the access layer switch. The method is applied to the BEB equipment and comprises steps: after an Ethernet packet of a client sent by the access layer switch is received, a matching entry is queried in a MAC (media access control) forwarding table according to the source MAC address of the Ethernet packet, wherein the source MAC address of the Ethernet packet is a proxy MAC address allocated for the client by the address allocation server; if the matching entry is not queried, the MAC forwarding entry containing the source MAC address is added in the MAC forwarding table; and when the MAC forwarding entry is synchronous in other BEB equipment in the SPBM network, a plurality of MAC forwarding entries belonging to the same MAC address section in the MAC forwarding table are aggregated into an aggregated MAC forwarding entry, and the aggregated MAC forwarding entry is synchronous in other BEB equipment.

Description

technical field [0001] The present application relates to the technical field of network communication, in particular to a method and device for aggregation of entries in an SPBM network. Background technique [0002] SPB (Shortest Path Bridging, the shortest path bridge) is an Ethernet standard defined by IEEE802.1aq, which is a further extension of MSTP (Multiple Spanning Tree Protocol, Multiple Spanning Tree Protocol), aiming to build a large flat non-blocking Layer 2 network . SPB uses SPB-IS-IS (Intermediate System to Intermediate System, intermediate system to intermediate system) to share the link state in the network, and each node in the network calculates the shortest path between each node in parallel, avoiding the use of STP (Spanning Tree Protocol (Spanning Tree Protocol) protocol brings instability and inefficient utilization of some links. [0003] IEEE802.1aq defines two SPB modes: VLAN mode (SPBV (Shortest Path Bridging VLAN Mode, the shortest path bridge ...

Claims

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Application Information

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IPC IPC(8): H04L12/741H04L29/12H04L45/74H04L45/02
CPCH04L61/5014H04L61/5038H04L61/59H04L2101/622H04L45/745H04L45/02
Inventor 王伟
Owner NEW H3C TECH CO LTD
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