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NE20E-S2 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access
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Licensing Requirements and Limitations for MAC--S2E

Licensing Requirements and Limitations for MAC--S2E

Licensing Requirements

This feature is a basic feature and is not under license control.

Restrictions and Guidelines

Restrictions

Guidelines

Impact

  • An EMAC address corresponding to an IMAC address is learned only after the IMAC address is learned. The first packet triggers the IMAC address learning, and the second packet triggers the EMAC address learning. So there must be at least two packets to trigger the EMAC address learning. This process ensures that the IMAC address learning limit takes effect immediately. However, if the traffic volume is small and the IMAC address learning limit is configured on an interface, the number of learned EMAC addresses displayed in the display mac-address command output may be different from the number of IMAC addresses limited. In this case, you need to wait for an aging period to expire before the two numbers become the consistent.
  • Alarm pairing:When MAC address limit is deleted or a board is reset, the existing alarm for MAC address limit does not support alarm pairing. After the board is inserted or deleted, or the MAC address limit is deleted, the alarm is not cleared.
  • When the mac-limit maximum 12 command is run on V8R9C10 versions, MAC addresses are not deleted. MAC address limit takes effect only after the reset mac-address is run. When the command is run, residual MAC addresses are aged after an aging period.

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Updated: 2019-01-02

Document ID: EDOC1100055378

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