HP 1606 HP B-series Fabric OS 6.4.1b Release Notes (5697-0886, March 2011-incl - Page 25

Brocade Fabric OS FCIP Administrator's Guide for v6.4.0, Brocade, Brocade Fabric OS Command Reference

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ms (1 second), otherwise the recommended value is the default of 10 seconds. For impairment networks with 100 ms latency and 0.5% packet loss, Keep Alive Timeout should be configured as 30 seconds. If the local and remote circuit configurations' Keep Alive Timeout values do not match, the tunnel uses the lower of the two configured values. • Software compression (available on the 1606 Extension SAN Switch) modes 2 and 3 are supported only in Open Systems environments. • Software compression (modes 2 and 3) generally gives a better compression ratio, but not the throughput or bandwidth across all six GE ports. HP recommends software compression for low-throughput links and supports throughput up to 2 Gb/s across all 6 GE ports. For more details, see the Brocade Fabric OS FCIP Administrator's Guide for v6.4.0. • To perform the following operations you must delete the FCIP configuration on the affected ports first: ◦ Switching modes between 1G/10G/Dual ◦ Moving VE/GE port between logical switches • The DC SAN Director Multiprotocol Extension Blade supports three operating modes: ◦ Mode 1: 10 1-GbE ports mode (default) ◦ Mode 2: 10 1-GbE ports and 1 10-GbE port ◦ Mode 3: 2 10-GbE ports Modes 2 and 3 require the slot-based 10-GbE FCIP license. For more details, see the Brocade Fabric OS FCIP Administrator's Guide for v6.4.0. • ARL (Adaptive Rate Limiting) is not supported on 10Gb tunnels. • In-band Management is not supported on the 1606 Extension SAN Switch. • IPSec is not supported on XGE0 of the DC SAN Director Multiprotocol Extension Blade with Fabric OS 6.4.x. IPSec is supported on XGE1 and GE0 through GE9. IPSec is supported on FCIP tunnels that use only IPV4 connections. • Fabric OS 6.4 supports only up to four 1Gb circuits per VE/FCIP tunnel for the 1Gb interfaces. A VE/FCIP tunnel created over 10Gb interfaces will be limited to 10 circuits created using IPIFs on the same 10-GbE port (and no more than 1 Gb per circuit). • As a recommended best practice, the VE tunnel should not be oversubscribed (for example, 8Gb FC traffic over 500 Mb/s tunnel). General guidelines are 2:1 subscription without compression and 4:1 with compression. • Nondisruptive firmware activation on Fabric OS 6.4.x will disrupt I/O traffic on FCIP links. • Differences between the 1606 Extension SAN Switch/DC SAN Director Multiprotocol Extension Blade platforms and previous-generation HP StorageWorks 400 Multiprotocol Router/HP StorageWorks B-series Multiprotocol Router Blade (Brocade 7500, FR4-18i) platforms include: ◦ On the 1606 Extension SAN Switch, the GigE port does not directly correlate to a VE_Port. ◦ 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 HP StorageWorks 400 Multiprotocol Router/HP StorageWorks B-series Multiprotocol Router Blade (Brocade 7500, FR4-18i). See the Brocade Fabric OS Command Reference document for Fabric OS 6.4 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 is not established and the TCP virtual Important notes and recommendations 25

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ms (1 second), otherwise the recommended value is the default of 10 seconds. For impairment
networks with 100 ms latency and 0.5% packet loss, Keep Alive Timeout should be configured
as 30 seconds. If the local and remote circuit configurations' Keep Alive Timeout values do
not match, the tunnel uses the lower of the two configured values.
•
Software compression (available on the 1606 Extension SAN Switch) modes 2 and 3 are
supported only in Open Systems environments.
•
Software compression (modes 2 and 3) generally gives a better compression ratio, but not
the throughput or bandwidth across all six GE ports. HP recommends software compression
for low-throughput links and supports throughput up to 2 Gb/s across all 6 GE ports. For more
details, see the
Brocade Fabric OS FCIP Administrator's Guide for v6.4.0
.
•
To perform the following operations you must delete the FCIP configuration on the affected
ports first:
◦
Switching modes between 1G/10G/Dual
◦
Moving VE/GE port between logical switches
•
The DC SAN Director Multiprotocol Extension Blade supports three operating modes:
Mode 1: 10 1-GbE ports mode (default)
◦
◦
Mode 2: 10 1-GbE ports and 1 10-GbE port
◦
Mode 3: 2 10-GbE ports
Modes 2 and 3 require the slot-based 10-GbE FCIP license. For more details, see the
Brocade
Fabric OS FCIP Administrator's Guide for v6.4.0
.
•
ARL (Adaptive Rate Limiting) is not supported on 10Gb tunnels.
•
In-band Management is not supported on the 1606 Extension SAN Switch.
•
IPSec is not supported on XGE0 of the DC SAN Director Multiprotocol Extension Blade with
Fabric OS 6.4.x. IPSec is supported on XGE1 and GE0 through GE9. IPSec is supported on
FCIP tunnels that use only IPV4 connections.
•
Fabric OS 6.4 supports only up to four 1Gb circuits per VE/FCIP tunnel for the 1Gb interfaces.
A VE/FCIP tunnel created over 10Gb interfaces will be limited to 10 circuits created using
IPIFs on the same 10-GbE port (and no more than 1 Gb per circuit).
•
As a recommended best practice, the VE tunnel should not be oversubscribed (for example,
8Gb FC traffic over 500 Mb/s tunnel). General guidelines are 2:1 subscription without
compression and 4:1 with compression.
•
Nondisruptive firmware activation on Fabric OS 6.4.x will disrupt I/O traffic on FCIP links.
•
Differences between the 1606 Extension SAN Switch/DC SAN Director Multiprotocol Extension
Blade platforms and previous-generation HP StorageWorks 400 Multiprotocol Router/HP
StorageWorks B-series Multiprotocol Router Blade (Brocade 7500, FR4-18i) platforms include:
◦
On the 1606 Extension SAN Switch, the GigE port does not directly correlate to a VE_Port.
◦
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 HP StorageWorks 400 Multiprotocol Router/HP
StorageWorks B-series Multiprotocol Router Blade (Brocade 7500, FR4-18i). See the
Brocade Fabric OS Command Reference
document for Fabric OS 6.4 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 is not established and the TCP virtual
Important notes and recommendations
25