Fcoe Vlans; Viewing Fip Snooping Information - Lenovo Flex System Fabric CN4093 Application Manual

FCoE VLANs

Viewing FIP Snooping Information

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Optimized traffic flow is enabled for a single switch FCF as well as a stack. In a
stack, one or more members may have optimized flow entries installed based on
the configuration. You can view the installed optimized ACLs on the respective
switches.
Note: Optimized ACL entries cannot be installed on ports 53-64, even when the
ports are in FCoE mode.
The following commands provide optimized traffic flow information:
 To check current state:
CN4093# show fcoe optimized­forwarding status
To view list of optimized ACLs:

CN4093# show fcoe optimized­acls vlan <VLAN ID>
Before the switch applies FIP Snooping, all internal switch ports connected to
ENodes and all external ports connected to external FCFs should be members of at
least one common VLAN (for example, VLAN 1). This allows the ENode CNA and
the external FCF to exchange initial FIP VLAN request and notification packets.
Once FIP Snooping is applied, FCoE packets are exchanged using one configured
FCoE VLAN for each attached FCF.
Each ENode port must have VLAN tagging enabled, and must belong to the same
VLAN as the external FCF to which it will connect. In topologies where a single
external FCF is connected to the switch, all ENode and FCF ports belong to the
same VLAN (typically VLAN 1002). When multiple FCFs are connected to the
switch, each FCF must be assigned a unique VLAN, and each ENode must be
assigned to the VLAN for only one particular FCF.
The administrator must ensure that the VLAN configured for each FCF and its
ENodes is supported by the participating FCF and ENode CNAs.
Note: The FCoE MAC Address Prefix (FC-Map) value is used to identify traffic on a
FCoE VLAN. The valid FC-Map values are from 0xefcf00 to 0x0efcff and are
configured automatically for each FCoE vlan. If you need to manually configure the
FC-MAP, use values in the range 0xefcf00 to 0x0efcf4. The other FC-Map values
are reserved.
ACLs automatically generated under FIP snooping are independent of regular,
manually configure ACLs, and are not listed with regular ACLs in switch
information and statistics output. Instead, FCoE ACLs are shown using the
following CLI commands:
CN4093# show fcoe fips information
CN4093# show fcoe fips port <ports> information(Show FIP info for a selected port)
(Show all FIP‐related information)
Chapter 18: FCoE and CEE
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