A crossed node and method for avoiding elastic packet crossed loop broadcast store
A technology of elastic grouping rings and intersecting nodes, which is applied in the field of network communication, can solve the problems that two intersecting nodes cannot forward cross-ring messages at the same time, and cannot apply multiple elastic grouping ring intersections, so as to avoid cross-ring broadcast storms, Easy-to-implement, easy-to-accept effects
Inactive Publication Date: 2008-01-16
HUAWEI TECH CO LTD
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[0007] However, although the broadcast storm problem is solved by blocking one of the two intersecting nodes of the intersecting ring, the intersecting ring becomes a tangent ring, so that the two intersecting nodes cannot simultaneously play the role of forwarding cross-ring messages. Moreover, the existing technology can only be used for the intersection of two elastic grouping rings, and cannot be applied to the scene where multiple elastic grouping rings intersect
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[0033] Throughout the specification, the preferred embodiment and examples shown should be considered as exemplifications of the invention and not as limitations.
[0034] An intersecting node for avoiding RPR intersecting ring broadcast storms, the intersecting node is a layer 2 network device or a layer 3 network device. As shown in FIG. 6, the intersection node includes a configuration layer, an input layer, a control layer and a forwarding layer. The control layer further includes a cross-ring broadcast control module, and the configuration layer delivers configuration to the cross-ring broadcast control module in the control layer to generate a cross-ring broadcast control table. The message enters the intersecting node from the input layer, and the control layer controls whether the message is broadcast across the ring according to the cross-ring broadcast control table. If allowed, it enters the forwarding layer, otherwise it is discarded.
[0035] The cross-ring broad...
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The invention discloses a cross node and a method of avoiding resilient packet transannular broadcast storm, which is applicable to at least two resilient packet RPR cross rings intersecting on at least two cross nodes. The cross nodes receive the broadcast message of the first resilient packet ring and replicate the broadcast message. The cross nodes judges whether the broadcast message transannular insertion is permitted to the second resilient packet ring cross-ring for broadcasting, according to the mark information carried by the broadcast message after replication. If permitted, transannular insert into the second resilient packet ring for broadcast. Or else, discard all broadcast message and the intersection of the control condition of the permitted transannular broadcast of all relevant cross nodes is void. The invention guarantees all relevant nodes can transmit transannular business, avoid transannular broadcast storm and is applicable to the cross application occasion of a plurality of resilient packet rings, with the advantages of easy implementation, good compatibility with existing network, low cost and easy acceptance by general customers.
Description
technical field [0001] The invention relates to the technical field of network communication, in particular to an intersecting node and a method for avoiding RPR intersecting ring broadcast storms. Background technique [0002] With the development of MAN technology, a technical standard of Resilient Packet Ring (RPR) has been proposed. As shown in Figure 1, RPR is a reverse dual-ring topology. The outer ring is the Outer Ring, and the inner ring is the Inner Ring. Both the outer ring and the inner ring transmit data packets and control packets. This standard is independent of the physical layer, which can be Ethernet or SDH. RPR technology integrates the ease of use of Ethernet and the reliability of WDM equipment. As a new metropolitan area network standard, it is gradually favored by operators due to its advantages in interface bandwidth, carrier-level failover capability, efficient bandwidth utilization, and physical layer independence. Deploy RPR at the location. ...
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IPC IPC(8): H04L12/56H04L29/06
CPCH04L12/4637H04L12/4625H04L45/16H04L12/42
Inventor 张钟凯
Owner HUAWEI TECH CO LTD