Lenovo ThinkSystem NE2552E, Application Manual

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NE2552E Application Guide for ENOS 8.4
Port Aggregation
Lenovo ENOS 8.4 supports port aggregation for FCoE connections. Link
Aggregation (LAGs) can be used for separate FCoE traffic, or for Ethernet and
FCoE traffic. The ports can be grouped as static LAGs or dynamic LACP LAGs.
Normal aggregation operations such as creating or enabling a LAG, and adding or
removing member ports can be performed. When a port is added to a LAG, FCFs
previously detected on the port will be deleted. The deleted FCF may be relearned
later. However, this may cause flickering in the network traffic. It is recommended
that any LAG changes are made prior to live FCoE traffic.
Priority ‐ based Flow Control (PFC) and Data Center Bridging (DCBX) are
configured on a per ‐ port basis. Each port in a LAG must have the same ETS, PFC
and DCBX configuration. When a port ceases to be a LAG member, its
configuration does not change.
Note:
If the ports chosen to be part of a certain LAG do not have the same PFC,
ETS or DCBX configurations, the switch will display an error.
Global FIP Snooping Settings
By default, the FIP snooping feature is turned off for the NE2552E. The following
commands are used to turn the feature on or off:
Note:
FIP snooping requires CEE to be turned on (see “Turning CEE On or Off” on
page 246 ).
When FIP snooping is on, port participation may be configured on a port ‐ by ‐ port
basis.
When FIP snooping is off, all FCoE ‐ related ACLs generated by the feature are
removed from all switch ports.
FIP snooping configuration must be the same on all member ports in a LAG. If the
configuration of a member port is changed, an error message, similar to the
following, will be displayed.
The configuration changes must be manually applied to all LAG member ports.
For an example, see “FIP Snooping Configuration” on page 255 .
NE2552E(config)# [ no ] fcoe fips enable
“FAIL: Trunk x FIP Snooping port y and port z need to have the same fips
config.“