50Chapter 2: EIU messaging protocols

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.nnnis 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

297-8991-910 Standard 03.01 August 1999

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Cabletron Systems DMS-100 manual File transfer protocol