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Method and device for processing protocol message

A protocol packet and processing method technology, applied in the field of protocol packet processing methods and devices, can solve problems such as failure to establish TRILL neighbors, interruption of TRILL data traffic, and discarding of TRILL protocol packets, and achieve the effect of avoiding failure to establish neighbors

Active Publication Date: 2013-09-04
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the sum of the link bandwidth of L1 and the link bandwidth of L2 is greater than the link bandwidth of L3, link congestion may occur on the E1 / 3 port of the network device
When the link congestion occurs on the E1 / 3 port of the network device, because the network device does not support the TRILL protocol, when the network device transparently transmits the TRILL protocol packet, it will transparently transmit the TRILL protocol packet together with the data packet. TRILL protocol packets may be discarded due to port congestion, resulting in interruption of TRILL data traffic, failure to establish TRILL neighbors, and confusion of unicast routing entries.
For example, when TRILL hello packets used to maintain TRILL neighbor information cannot be preferentially scheduled on the E1 / 3 port of the network device, packet loss occurs in TRILL hello packets, which in turn causes TRILL neighbor establishment failure.

Method used

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  • Method and device for processing protocol message
  • Method and device for processing protocol message
  • Method and device for processing protocol message

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Embodiment Construction

[0038] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a protocol packet processing method, the application scenarios of the method include but not limited to figure 1As shown in the TRILL network, as long as there is link congestion on the network equipment, the technical solution provided by the embodiment of the present invention can be used; for example, under the Internet packet switching network, since the current available link resources are less than the normal forwarding required link Link congestion scenarios caused by resources; link congestion scenarios caused by abnormal packets exhausting a large amount of link resources when the current network is attacked by a large number of abnormal packets. Such as figure 2 As shown, the method includes the following steps:

[0039] In step 201, the network device detects that the outbound port of the network device is congested.

[0040] When a network device receives a ...

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Abstract

The invention discloses a method and device for processing a protocol message. The method comprises the following steps that when a network device detects that link congestion exists in an outgoing port of the network device, the protocol message is extracted from a data buffer region by utilizing protocol type features, the extracted protocol message is reported to a CPU for processing, and the features of the extracted protocol message are recorded in a feature library; after the network device receives the protocol message, feature information in the protocol message is used for inquiring the feature library; if a record corresponding to the feature information exists in the feature library, the protocol message is reported to the CPU for processing; if the record corresponding to the feature information does not exist in the feature library, the protocol message is stored in the data buffer region. According to the method and device for processing the protocol message, the phenomenon that packet loss exists in a TRILL hello message can be avoided.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a protocol message processing method and equipment. Background technique [0002] In a TRILL (TRansparent Interconnection of Lots of Links) network, a network topology such as figure 1 As shown, it includes RB (Routing Bridge, routing bridge) ingress (entry) 1, RB ingress2, RB egress (exit) and network devices that do not support the TRILL protocol; among them, RB ingress1 is RB2 in the figure, and RB ingress2 is in the figure RB1 in the figure, RB3 in the RB egress, and DUT1 in the network device; in addition, the E1 / 1 ports of RB1, RB2, and RB3 are all enabled with the TRILL protocol, and the network device needs to transparently transmit TRILL protocol packets. [0003] When the sum of the link bandwidth of L1 and the link bandwidth of L2 is greater than the link bandwidth of L3, link congestion may occur on the E1 / 3 port of the network device. When the link co...

Claims

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Application Information

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IPC IPC(8): H04L12/823H04L29/06H04L47/32
Inventor 徐光建王伟
Owner NEW H3C TECH CO LTD
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