HP 4400 HP StorageWorks Fabric OS 6.4.1 Release Notes (5697-0760, November 201 - Page 29

FCoE/CEE (2408 FCoE Converged Network Switch and DC SAN Director Switch 10/24 FCoE Blade)

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• The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the switches on both sides of a link. • Latency measurements supported on FCIP tunnels (tested limit under Fabric OS 6.3.1): • 1 GbE with 200 ms round-trip time and 1% loss • 10 GbE with 100 ms round-trip time and 0.1% loss • The 1606 Extension SAN Switch supports optical and copper media types on GE0 and GE1 interfaces. Copper media is the default on GE0/GE1 ports and does not support autosense functions. • Inserting a 4 Gb SFP in GE ports of an HP StorageWorks 1606 Extension SAN Switch or DC SAN Director Multiprotocol Extension Blade can occasionally return the following message: • Can't read serial data in sfpshow output. Remove and reinsert the SFP to resolve this issue. HP recommends that you perform sfpshow immediately after inserting the SFP and ensure it is seated properly before connecting the cables. • When running Fabric OS 6.4.x, if any of the following features are enabled in the FCIP configuration, a downgrade operation earlier than Fabric OS 6.4.0 is blocked until the features are removed from the FCIP config: • IPv6 • IPSec on the DC SAN Director Multiprotocol Extension blade • DSCP Markings • Advanced Compression options 2 and 3 on the DC SAN Director Multiprotocol Extension blade VEX ports • When configuring an FCIP Tunnel to use VLAN tagging on an HP StorageWorks 400 Multiprotocol Router or an HP StorageWorks B-series Multiprotocol Router Blade, a static ARP entry must be configured on the GE interface for the local gateway. Also a static ARP entry must be added in the local gateway for the multiprotocol router/router blade GE port. • FICON networks with FCIP tunnels do not support DPS (aptpolicy 3) configurations. This applies to both emulating and non-emulating FCIP tunnels. FCoE/CEE (2408 FCoE Converged Network Switch and DC SAN Director Switch 10/24 FCoE Blade) • The 2408 FCoE Converged Network Switch balances the FCoE bandwidth across all six port groups (each port group contains four ports). For you to get optimum performance for FCoE traffic, HP recommends that you distribute server CNA connections across these six port groups. • Hot-plugging a CP with a firmware level earlier than Fabric OS 6.3.0 into a DC SAN Backbone Director or DC04 SAN Director with an active DC SAN Director Switch 10/24 FCoE Blade results in the new standby CP not being HA synchronized. To avoid this scenario, upgrade the code on the standby CP directly to match the version on the active CP. • HP recommends that Converged Mode be enabled on all interfaces connected to CNAs. • When operating in Converged Mode, tagged traffic on the native VLAN of the switch interface is processed normally. The host should be configured not to send VLAN tagged traffic on the switch's native VLAN - tagged frames coming with a VLAN tag equal to the configured native VLAN are dropped. • The CNA may lose connectivity to the 2408 FCoE Converged Network Switch/DC SAN Director Switch 10/24 FCoE Blade if the CNA interface is toggled repeatedly over time. This issue is related to the CNA; rebooting the CNA restores connectivity. • Although the 2408 FCoE Converged Network Switch/DC SAN Director Switch 10/24 FCoE Blade support the configuration of multiple CEE maps, HP recommends that you use only one CEE HP StorageWorks Fabric OS 6.4.1 Release Notes 29

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•
The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the switches
on both sides of a link.
•
Latency measurements supported on FCIP tunnels (tested limit under Fabric OS 6.3.1):
•
1 GbE with 200 ms round-trip time and 1% loss
•
10 GbE with 100 ms round-trip time and 0.1% loss
•
The 1606 Extension SAN Switch supports optical and copper media types on GE0 and GE1 in-
terfaces. Copper media is the default on GE0/GE1 ports and does not support autosense functions.
•
Inserting a 4 Gb SFP in GE ports of an HP StorageWorks 1606 Extension SAN Switch or DC
SAN Director Multiprotocol Extension Blade can occasionally return the following message:
•
Can't read serial data
in
sfpshow
output.
Remove and reinsert the SFP to resolve this issue. HP recommends that you perform
sfpshow
immediately after inserting the SFP and ensure it is seated properly before connecting the
cables.
•
When running Fabric OS 6.4.x, if any of the following features are enabled in the FCIP configur-
ation, a downgrade operation earlier than Fabric OS 6.4.0 is blocked until the features are removed
from the FCIP config:
•
IPv6
•
IPSec on the DC SAN Director Multiprotocol Extension blade
•
DSCP Markings
•
Advanced Compression options 2 and 3 on the DC SAN Director Multiprotocol Extension
blade VEX ports
•
When configuring an FCIP Tunnel to use VLAN tagging on an HP StorageWorks 400 Multiprotocol
Router or an HP StorageWorks B-series Multiprotocol Router Blade, a static ARP entry must be
configured on the GE interface for the local gateway. Also a static ARP entry must be added in
the local gateway for the multiprotocol router/router blade GE port.
•
FICON networks with FCIP tunnels do not support DPS (aptpolicy 3) configurations. This applies
to both emulating and non-emulating FCIP tunnels.
FCoE/CEE (2408 FCoE Converged Network Switch and DC SAN Director
Switch 10/24 FCoE Blade)
•
The 2408 FCoE Converged Network Switch balances the FCoE bandwidth across all six port
groups (each port group contains four ports). For you to get optimum performance for FCoE traffic,
HP recommends that you distribute server CNA connections across these six port groups.
•
Hot-plugging a CP with a firmware level earlier than Fabric OS 6.3.0 into a DC SAN Backbone
Director or DC04 SAN Director with an active DC SAN Director Switch 10/24 FCoE Blade results
in the new standby CP not being HA synchronized. To avoid this scenario, upgrade the code on
the standby CP directly to match the version on the active CP.
•
HP recommends that Converged Mode be enabled on all interfaces connected to CNAs.
•
When operating in Converged Mode, tagged traffic on the native VLAN of the switch interface
is processed normally. The host should be configured not to send VLAN tagged traffic on the
switch
’
s native VLAN - tagged frames coming with a VLAN tag equal to the configured native
VLAN are dropped.
•
The CNA may lose connectivity to the 2408 FCoE Converged Network Switch/DC SAN Director
Switch 10/24 FCoE Blade if the CNA interface is toggled repeatedly over time. This issue is related
to the CNA; rebooting the CNA restores connectivity.
•
Although the 2408 FCoE Converged Network Switch/DC SAN Director Switch 10/24 FCoE
Blade support the configuration of multiple CEE maps, HP recommends that you use only one CEE
HP StorageWorks Fabric OS 6.4.1 Release Notes
29