Admin Guide

All devices in a network that are SONMP-enabled send hello packets to their immediate neighbors,
that is, to interconnecting Layer 2 devices. A hello packet advertises the existence of the sending
device and provides basic information about the device, such as the IP address and MAC address.
The hello packets allow each device to construct a topology table of its immediate neighbors. A
network management station periodically polls devices in its network for these topology tables, and
then uses the data to formulate a topology map.
If you disable SONMP, the system stops transmitting and acknowledging SONMP hello packets. In
addition, the system removes all entries in the topology table except its own entry. If you enable
SONMP, the system transmits a hello packet every 12 seconds. The default status is enabled.
Channelization
Channelization allows you to configure 40 Gbps QSFP+ ports to operate as four 10 Gigabit Ethernet
ports. You can use QSFP+ to four SFP+ breakout cables or QSFP+ transceivers with fiber breakout
cables to connect the 10 Gigabit Ethernet ports to other servers, storage, and switches.
By default, the ports are not channelized, which means that the 40 Gbps QSFP+ ports operate as
40 Gigabit Ethernet ports. You can enable or disable channelization on a port.
If you enable or disable channelization on a port, the port QoS configuration resets to default values.
For information about configuring QoS values, see Configuring QoS and ACL-Based Traffic Filtering
on Avaya Virtual Services Platform 7200 Series and 8000 Series, NN47227-502.
The following list identifies channelization support:
• VSP 8200
- Supports channelization on all four 40G ports.
• VSP 8400
Note:
Channelized port operation is not affected when the same card type is hot swapped when
one or more 40G ports on that card are channelized. Swapping a different card results in
the configuration for that slot being lost, so any channelized ports will need to be
reconfigured.
• VSP 7200 Series
- Supports channelization on all six 40G ports.
When a 40 Gigabit port is channelized, only use break out cables (DAC or Fiber) in it. Otherwise,
the link behavior can be unpredictable because it can result in mismatched link status between link
partners, which can further lead to network issues.
Also avoid the use of break out cables in non-channelized 40 Gigabit ports because this can result
in mismatched link status between link partners, which can lead to network issues.
Note that when you use channelized ports in an SMLT configuration, you will not see the
channelized ports displayed properly when you show MLT information for the remote port member if
a release earlier than 4.2.0.0 is running on the remote switch. Support for channelization was added
in VOSS Release 4.2.0.0.
Chassis operations fundamentals
January 2017 Administering Avaya VSP 7200 Series and 8000 Series 71
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