Avaya Virtual Services Platform 7200 Series - Chapter 4: Preinstallation Checklist; Preinstallation Checklist

operate and the port link will come up. The switch logs the device as an unsupported or
unknown device.
• The VSP 7200 Series operates in strict mode for SFP+ and QSFP+ transceivers, which
means that the switch will not bring the port up operationally when using non-Avaya SFP+
or QSFP+ transceivers.
• The VSP 7200 Series operates in forgiving mode for SFP+ and QSFP+ direct attached
cables, which means that the switch will bring up the port operationally when using Non-
Avaya direct attached cables. Avaya does not provide support for operational issues
related to these DACs, but they will operate and the port link will come up.
For more information about compatible transceivers, see Installing Transceivers and Optical
Components on Avaya Virtual Services Platform 7200 Series and 8000 Series, NN47227-301.
VSP 7200 operational notes
• The VSP 7254XSQ has a PHYless design, which is typical for Data Center Top of Rack
switches. The benefits of a PHYless design are lower power consumption and lower latency.
However, due to the PHYless design, the following transceivers are not supported:
- AA1403017-E6: 1-port 10GBASE-LRM SFP+
- AA1403016-E6: 1-port 10GBase-ZR/ZW SFP+
The AA1403165 10GBASE-ZR CWDM DDI SFP+ transceiver can be substituted for
AA1403016-E6 10GBASE-ZR/ZW SFP+.
• Software partitions the switch into 2 logical slots: Slot 1 and Slot 2.
- Slot 1: 10 Gbps Ports: 1 - 48
- Slot 2: 40 Gbps Ports: 1 - 6
• Channelization is supported on the 40 Gbps QSFP+ ports.
• Macsec support:
- MACsec is only supported on the VSP 7254XTQ 10 Gbps ports
- MACsec is not supported on VSP 7254XSQ 10 Gbps ports.
- MACsec is not supported on VSP 7254XTQ and VSP 7254XSQ 40 Gbps ports whether
channelization is enabled or not.
• 1000BASE-T SFP (AA1419043-E6) will only operate at 1 Gbps speeds when used on a VSP
7254XSQ.
• When you use 1 Gigabit Ethernet SFP transceivers on VSP 7254XSQ, the software disables
auto-negotiation on the port:
- If you use 1 Gbps fiber SFP transceivers, the remote end must also have auto-negotiation
disabled.
- If you use 1 Gbps copper SFP transceivers, the remote end must have auto-negotiation
enabled. If not, the link will not be established.
• When a port on VSP 7254XSQ is disabled/enabled or a cable replaced or the switch rebooted,
the remote link may flap twice.
Hardware models
October 2015 Installing the Avaya VSP 7200 Series 14
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