Cisco Unified MeetingPlace, Release 7.1 -- 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.