HP 1606 HP StorageWorks Fabric OS 6.3.1c Release Notes (5697-0509 September 2 - Page 29

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

Page 29 highlights

• On the DC SAN Director Multiprotocol Extension Blade, GigE ports 0-9 or 10-GbE port 1 (xge1) correspond to VE_Ports 12-21, and 10-GbE port 0 (xge0) corresponds to VE_Ports 2231. • The CLI syntax for the 1606 Extension SAN Switch/DC SAN Director Multiprotocol Extension Blade varies from the 7500/FR4-18i. See the Brocade Fabric OS Command Reference document for Fabric OS 6.3 for details. • Both ends of a tunnel must be identically configured for the Compression, FastWrite, and Tape Pipeline options. If a mismatch exists, the tunnel will not be established and the TCP virtual connections will be removed. • Under traffic isolation (TI) zone configurations with failover enabled, non-TI zone traffic will use the dedicated path if no other E or VE paths through the fabric exist, or if the nondedicated paths are not the shortest paths. (A higher bandwidth tunnel with multiple circuits will become the shortest path compared to a single tunnel.) • A VE/VEX tunnel and E/EX FC port cannot connect to the same domain at the same time. • The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the switches on both sides of a link. • The 1606 Extension SAN Switch and DC SAN Director Multiprotocol Extension Blade cannot receive a ping from an external device (for example, a Windows PC). • 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 50 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 one of the following messages: • No_Light or Unknown for GE ports in switchshow output. Remove and reinsert the optic cable to correct this indication. • Can't read serial data in sfpshow output. Reissue the sfpshow command to resolve this issue. 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). To get optimum performance for FCoE traffic HP recommends that the user 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 will result 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. • 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. HP StorageWorks Fabric OS 6.3.1c Release Notes 29

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On the DC SAN Director Multiprotocol Extension Blade, GigE ports 0-9 or 10-GbE port 1
(xge1) correspond to VE_Ports 12-21, and 10-GbE port 0 (xge0) corresponds to VE_Ports 22-
31.
The CLI syntax for the 1606 Extension SAN Switch/DC SAN Director Multiprotocol Extension
Blade varies from the 7500/FR4-18i. See the
Brocade Fabric OS Command Reference
document
for Fabric OS 6.3 for details.
Both ends of a tunnel must be identically configured for the Compression, FastWrite, and Tape
Pipeline options. If a mismatch exists, the tunnel will not be established and the TCP virtual connec-
tions will be removed.
Under traffic isolation (TI) zone configurations with failover enabled, non-TI zone traffic will use
the dedicated path if no other E or VE paths through the fabric exist, or if the nondedicated paths
are not the shortest paths. (A higher bandwidth tunnel with multiple circuits will become the shortest
path compared to a single tunnel.)
A VE/VEX tunnel and E/EX FC port cannot connect to the same domain at the same time.
The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the switches
on both sides of a link.
The 1606 Extension SAN Switch and DC SAN Director Multiprotocol Extension Blade cannot receive
a ping from an external device (for example, a Windows PC).
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 50 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 one of the following messages:
No_Light
or
Unknown
for GE ports in
switchshow
output.
Remove and reinsert the optic cable to correct this indication.
Can't read serial data
in
sfpshow
output.
Reissue the
sfpshow
command to resolve this issue.
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). To get optimum performance for FCoE traffic HP
recommends that the user 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 will
result 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.
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.
HP StorageWorks Fabric OS 6.3.1c Release Notes
29