Cisco Unified MeetingPlace, Release 7.0 -- About Ethernet Settings

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We recommend the following Ethernet port settings:

Audio Blade Ethernet Switch Port Result

Auto-negotiate

Auto-negotiate

1000/Full


Video Blade Ethernet Switch Port Result

Auto-negotiate

Auto-negotiate

1000/Full


Application Server Ethernet Switch Port Result

Auto-negotiate

Auto-negotiate

Gigabit or 100/Full

Gigabit

Gigabit

Gigabit

100/Full

100/Full

100/Full



We do not recommend the following:

  • One device set to auto-negotiate and the other device set in a fixed configuration.
  • 10Mb Ethernet.
  • Half duplex Ethernet at any speed.
  • Using 10/100Mbps for MCU and EMP, nor any hard set values (MCU & EMP tested and certified only on Auto/Auto setting connected to 1Gb switchports)


Caution! Setting one device to auto-negotiate and the other device to a fixed configuration will often result in negotiation failure, where one side thinks it has a full duplex link and the other side thinks it has a half duplex link. This will result in intermittent non-specific failures which get progressively worse as the load on the system increases and can result in a complete service outage.

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