HP StorageWorks 1606 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 554

Internal Ethernet devices, IP address and routing management

Page 554 highlights

B Internal Ethernet devices Internal Ethernet devices During the switch initialization process, a new internal Ethernet device is created. The devices created are inbd0 and inbd1. Ethernet device inbd0 is used to communicate through GE port 1 and inbd1 is used to communicate through GE port 0. These new Ethernet interfaces are internal only and are not accessible from outside the switch. They are used strictly for the means of communicating IP packets between the CP and the GE port processor. During initialization, the hardware addresses for inbd0 and inbd1 are initialized to create a hardware address that is unique for each Ethernet interface. After the Ethernet device is initialized it is enabled for use. At this point the Ethernet device can start sending and receiving Ethernet frames. FIGURE 81 Inband Management process The NAT IP table is loaded and automatically configured on startup.The source address NAT is configured on the inband management interfaces to use the address of the CP management interface (eth0). The switch automatically uses the IP address of the CP management interface for the source address NAT for the new inband management interfaces, so no additional configuration will be required. IP address and routing management The CP and GE port processor Ethernet interfaces must have IP addresses associated with them. By default, there will be no IP addresses associated with these new Ethernet interfaces. To manage the IP addresses for the CP and GE port processor Ethernet interfaces, use the portCfg inbandmgmt command on the CP. Specifying the portCfg inbandmgmt command with the routeadd or routedel options adds and deletes route entries to and from the CP and the GE port processor routing tables. IP addresses must be configured for both devices prior to configuring any routes. When configuring the routes for the CP, the GE port processor inband device address for that GE port is used instead of the 512 Fabric OS Administrator's Guide 53-1001336-01

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512
Fabric OS Administrator’s Guide
53-1001336-01
Internal Ethernet devices
B
Internal Ethernet devices
During the switch initialization process, a new internal Ethernet device is created. The devices
created are
inbd0
and
inbd1
. Ethernet device inbd0 is used to communicate through GE port 1 and
inbd1 is used to communicate through GE port 0. These new Ethernet interfaces are internal only
and are not accessible from outside the switch. They are used strictly for the means of
communicating IP packets between the CP and the GE port processor.
During initialization, the hardware addresses for inbd0 and inbd1 are initialized to create a
hardware address that is unique for each Ethernet interface. After the Ethernet device is initialized
it is enabled for use. At this point the Ethernet device can start sending and receiving Ethernet
frames.
FIGURE 81
Inband Management process
The NAT IP table is loaded and automatically configured on startup.The source address NAT is
configured on the inband management interfaces to use the address of the CP management
interface (eth0). The switch automatically uses the IP address of the CP management interface for
the source address NAT for the new inband management interfaces, so no additional configuration
will be required.
IP address and routing management
The CP and GE port processor Ethernet interfaces must have IP addresses associated with them.
By default, there will be no IP addresses associated with these new Ethernet interfaces. To manage
the IP addresses for the CP and GE port processor Ethernet interfaces, use the
portCfg
inbandmgmt
command on the CP.
Specifying the
portCfg inbandmgmt
command with the
routeadd
or
routedel
options adds and
deletes route entries to and from the CP and the GE port processor routing tables. IP addresses
must be configured for both devices prior to configuring any routes. When configuring the routes
for the CP, the GE port processor inband device address for that GE port is used instead of the