HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.2 administrator guide (5697-0 - Page 551

E Inband Management Inband Management overview Inband Management on the HP StorageWorks 400 Multi-Protocol Router allows a management station to communicate to the CP through the GE ports for tasks such as downloading firmware, SNMP polling, SNMP traps, troubleshooting, and configuration. To facilitate this communication, the HP StorageWorks 400 Multi-Protocol Router uses IP forwarding and IP routing to forward IP traffic through the switch to the management station. NOTE: You can have an FCIP tunnel set up and running on one GE port, while the other is being used for Inband Management. Or use both GE ports for Inband Management. Inband Management is implemented on the HP StorageWorks 400 Multi-Protocol Router only and is not available on the B-Series Multi-Protocol Router Blades. It requires having management access to the switch through the management port for initial configuration. There must be at least one IP interface configured, on the GE port you will use, for Inband Management. To implement Inband Management on the HP StorageWorks 400 Multi-Protocol Router, you must have an understanding of implementing IP routes and subnets. The GE port that you configure acts as a router with IP forwarding implemented to allow communication to the CP through the GE port processors and then out the GE ports. Therefore it is necessary to implement numerous IP routes throughout the network to allow the communication to take place. NOTE: IPsec is not supported over Inband Management interfaces. Once the switch is set up with the appropriate IP addresses and routes, the IP driver will compare the destination address to any existing interfaces when it receives an IP packet. If it does not have an interface that matches, it will perform a route lookup for the destination address. If it returns with a valid gateway, the packet will be forwarded to that gateway address. NOTE: Only IPv4 forwarding is supported. 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 box. They are used strictly for the means of communicating IP packets between the CP and the GE port processor. During initialization, the hardware address 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. Fabric OS 6.2 administrator guide 547