Upgrade And Downgrade Considerations For Fc-Fc Routing; How Replacing Port Blades Affects Ex_Port Configuration; Interoperability With Legacy Fcr Switches; Backbone-To-Edge Routing Across Base Switch Using Fc Router In Legacy Mode - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

IFL
E
(Default logical switch)
C
F
EX
Figure 70

Backbone-to-edge routing across base switch using FC router in legacy mode

Upgrade and downgrade considerations for FC-FC routing

When you upgrade to Fabric OS 6.2.0 or later, EX_Ports remain functional and you can continue to
perform all FC router operations on the switch.
HP recommends that you save your FC-FC routing configuration (using the configUpload command)
before performing any downgrades.
Fabric OS 6.0.x and earlier releases do not support EX_Ports on 8-Gb/s ports. Downgrades are not
allowed on platforms with 8-Gb/s EX_Ports.
For further instructions on downgrading, see Chapter 8,
page 213.

How replacing port blades affects EX_Port configuration

If you replace a B-Series Multi-Protocol Router Blade with an 8-Gb/s port blade, the EX_Port configuration
remains the same for the first 16 ports on the 8-Gb/s port blade. For all other ports on the blade, the
EX_Port configuration is cleared. No ports are persistently disabled.
If you replace an 8-Gb/s port blade with a B-Series Multi-Protocol Router Blade, the EX_Port configuration
remains the same for all ports on the B-Series Multi-Protocol Router Blade. All ports are persistently
disabled.
If you replace an 8-Gb/s port blade with another 8-Gb/s port blade, the EX_Port configuration remains
the same.

Interoperability with legacy FCR switches

A legacy FCR switch is a switch running Fabric OS 5.1.x or earlier or XPath OS.
The following interoperability considerations apply when administering legacy FCR switches in the same
backbone fabric as switches supporting Fabric OS 5.2.0 or later:
• When a legacy switch is connected to the backbone fabric, a RASLog message is issued indicating that
the capability of the backbone fabric is lower because legacy FCR switches support lower capability
limits.
• If an XPath OS switch joins the backbone fabric, a RASLog message is issued indicating that the
backbone-to-edge fabric is not supported with the XPath OS switch.
For further information on these RASLog messages, see the FCR chapter in the Fabric OS Message
Reference.
Physical chassis 1
ISL
E
Logical switch 1
Fabric ID 128
Logical switch 2
Fabric ID 1
Allows XISL use
ISL
E
Logical switch 3
Fabric ID 15
E
IFL
EX
Logical switch 4
(Base switch)
E
Fabric ID 8
XISL
Physical chassis 2
F
E
Logical switch 5
(Default logical switch)
Fabric ID 128
Logical switch 6
Fabric ID 1
Allows XISL use
E
Logical switch 7
Fabric ID 15
Logical switch 8
(Base switch)
E E
Fabric ID 8
ISL
"Installing and maintaining
Fabric OS 6.2 administrator guide 403
B
Edge fabric
FID 20
E
IFL
EX
A
E
FC router
Fabric ID 4
firmware" on