Dell Brocade 5100 Fabric OS v7.0.2 Release Notes v1.0 - Page 29

FCR and Integrated Routing, Forward Error Correction FEC, FICON, FL_Port Loop Support

Page 29 highlights

• The Brocade 8000 and FCOE10-24 can handle 169 small FCoE frames in bursts. If you are using the Brocade 8000 or FCOE10-24, and you delete a large number of v-ports with HCM, some of the v-ports may not appear to be deleted. To correct this, disable and re-enable FCoE with the following CLI commands: switch:admin>fcoe -disable slot/port switch:admin>fcoe --enable slot/port • When a FCOE10-24 blade is powered off during configuration replay, the interface specific configuration won't get applied. Later when FCOE10-24 blade is powered on, all physical interfaces will come up with default configurations. User can execute "copy startup-config running-config" command to apply the new configuration after powering on the FCOE10-24 blade. • When IGMP Snooping is disabled on a VLAN, all configured IGMP groups are removed from that VLAN. User has to reconfigure the IGMP groups after enabling the IGMP snooping on that VLAN. FCR and Integrated Routing • With routing and dual backbone fabrics, the backbone fabric ID must be changed to keep the IDs unique. • When using FC Routing in a backbone to edge configuration with an Mi10K in the edge fabric, users may experience slow throughput for hosts attached to the Mi10K. Users may encounter this following a bounced IFL connection between the backbone and edge fabric. This slowdown can be resolved by disabling/enabling the Mi10K ports for the hosts that are impacted. • Mi10K Directors operating with firmware prior to M-EOSn v9.9.5 may experience repeated system faults when attached as an FCR edge switch to a Brocade 7800 EX Port. To avoid this, ensure that the Mi10K is operating with M-EOSn v9.9.5 or later when in an edge fabric that will be attached to a Brocade 7800 FCR Backbone. • VEX edge to VEX edge device sharing will not be supported. • To allow Hot Code Load on Brocade 5100 when using Integrated Routing, the edge switch connected to the 5100 must be running Fabric OS v6.1 or later code. Forward Error Correction (FEC) • Though FEC capability is generally supported on Condor3 (16G capable FC) ports when operating at either 10G or 16G speed, it is not supported when using active DWDM links. Hence FEC must be disabled on Condor3 ports when using active DWDM links by using portCfgFec command. Failure to disable FEC on active DWDM links may result in link failure during port bring up. FICON • For FICON qualified releases, please refer to the Appendix: Additional Considerations for FICON Environments section for details and notes on deployment in FICON environments. (This appendix is only included for releases that have completed FICON qualification). FL_Port (Loop) Support • FL_Port is not supported on FC16-32, FC16-48, FC8-32E, FC8-48E, Brocade 6510, and Brocade 6505. • The FC8-48 and FC8-64 blade support attachment of loop devices. • Virtual Fabrics must be enabled on the chassis and loop devices may only be attached to ports on a 48-port or 64-port blade assigned to a non-Default Logical Switch operating with the default 10bit addressing mode (they may not be in the default Logical Switch). • A maximum of 144 ports may be used for connectivity to loop devices in a single Logical Switch within a chassis in 10-bit dynamic area mode on DCX-4S. Fabric OS v7.0.2 Release Notes v1.0 Page 29 of 99

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Fabric OS v7.0.2 Release Notes v1.0
Page 29 of 99
The Brocade 8000 and FCOE10-24 can handle 169 small FCoE frames in bursts. If you are using the
Brocade 8000 or FCOE10-24, and you delete a large number of v-ports with HCM, some of the v-ports
may not appear to be deleted. To correct this, disable and re-enable FCoE with the following CLI
commands:
switch:admin>fcoe
fcoe
fcoe
fcoe –disable slot/port
disable slot/port
disable slot/port
disable slot/port
switch:admin>fcoe
fcoe
fcoe
fcoe --
--
--
--enable
enable
enable
enable slot/port
slot/port
slot/port
slot/port
When a FCOE10-24 blade is powered off
during configuration replay, the interface specific
configuration won’t get applied.
Later when FCOE10-24 blade is powered on, all physical interfaces
will come up with default configurations.
User can execute “copy startup-config running-config”
command to apply the new configuration after powering on the FCOE10-24 blade.
When IGMP Snooping is disabled on a VLAN, all configured IGMP groups are removed from that VLAN.
User has to reconfigure the IGMP groups
after enabling the IGMP snooping on that VLAN.
FCR and Integrated Routing
With routing and dual backbone fabrics, the backbone fabric ID must be changed to keep the IDs
unique.
When using FC Routing in a backbone to edge configuration with an Mi10K in the edge fabric, users
may experience slow throughput for hosts attached to the Mi10K.
Users may encounter this following
a bounced IFL connection between the backbone and edge fabric.
This slowdown can be resolved by
disabling/enabling the Mi10K ports for the hosts that are impacted.
Mi10K Directors operating with firmware prior to M-EOSn v9.9.5 may experience repeated system
faults when attached as an FCR edge switch to a Brocade 7800 EX Port.
To avoid this, ensure that the
Mi10K is operating with M-EOSn v9.9.5 or later when in an edge fabric that will be attached to a
Brocade 7800 FCR Backbone.
VEX edge to VEX edge device sharing will not be supported.
To allow Hot Code Load on Brocade 5100 when using Integrated Routing, the edge switch connected
to the 5100 must be running Fabric OS v6.1 or later code.
Forward Error Correction (FEC)
Though FEC capability is generally supported on Condor3 (16G capable FC) ports when operating at
either 10G or 16G speed, it is not supported when using active DWDM links.
Hence FEC must be
disabled on Condor3 ports when using active DWDM links by using portCfgFec command. Failure to
disable FEC on active DWDM links may result in link failure during port bring up.
FICON
For FICON qualified releases, please refer to the
Appendix: Additional Considerations for FICON
Environments
section for details and notes on deployment in FICON environments.
(This appendix is
only included for releases that have completed FICON qualification).
FL_Port (Loop) Support
FL_Port is not supported on FC16-32, FC16-48,
FC8-32E, FC8-48E, Brocade 6510, and
Brocade
6505.
The FC8-48 and FC8-64 blade support attachment of loop devices.
Virtual Fabrics must be enabled on the chassis and loop devices may only be attached to ports on
a 48-port or 64-port blade assigned to a non-Default Logical Switch operating with the default 10-
bit addressing mode (they may not be in the default Logical Switch).
A maximum of 144 ports may be used for connectivity to loop devices in a single Logical Switch within
a chassis in 10-bit dynamic area mode on DCX-4S.