Filter
Top Products
50 Chapter 2: EIU messaging protocols
297-8991-910 Standard 03.01 August 1999
has an Ethernet card). Such nodes have to be on the same subnet as the CM
to be configured through the BOOTP server on the CM, except if the
maximum hops count accepted by the server is increased.
File transfer protocol
File transfer protocol has been implemented on all the SuperNode-based nodes
including CM.
FTP implementation contains client as well as server software. The client
software lets the user application connect to a remote FTP server. The server
can be on any node within the SuperNode switch or a node external to the
SuperNode switch. The communication with the external node is through the
EIU. At least one EIU must be in-service in order to connect to an external
node. The SuperNode FTP server software listens to the incoming requests for
connection from a client FTP.
An FTP client has been implemented for launching manual FTP client sessions
from any SuperNode-based node to any node external or internal to the
SuperNode switch. The manual FTP can be invoked by issuing the following
command:
> ftp ‘<nnn.nnn.nnn.nnn>’ [x]
where
nnn.nnn.nnn.nnn is the IP address of the FTP server
x x is an optional port number
Observe that the IP address is enclosed within single quotes. For manual FTP,
a path name in lower case must be enclosed within single quotes. If the path
name is not enclosed within quotes and starts with a slash character(/), the path
name must be prefixed by a colon character (:). These restrictions are specific
to SuperNode CI.
There are three separate file systems supported by FTP:
• SFDEV (on all nodes)
• SLM volumes on CM
Also, access to the IOC is available. SLM volumes and SFDEV are record-
oriented file systems, whereas FTFS volumes are byte-stream oriented.
Therefore, take extra care to identify the record lengths while transferring files
to a record-oriented file system.
For example, LOAD68K files require 256-byte fixed-length records. UnIPLed
images are stored as 512-byte fixed-length records. IPLed images need 1020-
byte fixed-length records. The record length can be set either automatically or
manually. If the file extension is in a prescribed form, the system automatically