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Announcement on abnormal forwarding problems caused by errors in checking entries of products S6860& S6861&S6900F series switches

2020-08-17 Published
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孟普 五段
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Problem Description

[Product Model]

H3C S6860 Series Switches

H3C S6861 Series Switches

H3C S6900F: S6900-54HQF-F


[Version involved]

H3C S6860 Series Switches: Before F2707 (excluding F2707, including 26XX Series versions).

H3C S6861 Series Switches: Before R2702 (including R2702).

H3C S6900F Series Switches: Before F2707 (excluding F2707, including 26XX Series versions).


[Problem Description]

When the related product loads the involved version and runs for a long time, there is a probability of parity errors in the message entries of memory management unit (MMU) or the three-layer forwarding entries.

Due to bugs in software, it is possible that repairing these table entries would result in device forwarding abnormalities or an automatic restart when memory is exhausted.


Cause Analysis

[Cause Analysis]

When parity errors in chip message memory management unit (MMU) table entries or three-layer forwarding table entries occur, the software versions involved above are defective in repairing, which may cause device CPU dead cycles and memory leaks.


Circumvention measures/solutions

 [Avoidance/Solution]

  1. For devices running the following software versions on the current network, deploy the corresponding patches as soon as possible.

The specific patches and release plans are as follows:

Major Version Number

Problem solving patch number

R2612P02 Version

R2612P02H29 (inclusive, expected to be released in mid-August) and later patches to resolve

R2612P06 Version

R2612P06H01 (inclusive, expected to be released in mid-August) and later patches to resolve

R2702 Version

R2702H13 (inclusive) and later patches to resolve

F2703 Version

F2703H03(inclusive) and later patches to resolve

  1. For devices running other software versions on the network, upgrade to the software version that has solved the problem as soon as possible and deploy the corresponding patch to solve the problem.

Currently, the recommended target upgrade version for each series of devices is as follows:

Product Series

Target Version and Patch

S6860 Series Switches

F2707 (inclusive) and later versions

S6861 Series Switches

R2702 loading H13 patch

S6900F Series Switches

F2707 (inclusive) and later versions

 

 


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