Users Guide

• To copy a le on the USB device, enter usbash:// followed by the lename.

In the Dell Networking OS release 9.8(0.0), HTTP services support the VRF-aware functionality. If you want the HTTP server to use a VRF

table that is attached to an interface, congure that HTTP server to use a specic routing table. You can use the ip http vrf command

to inform the HTTP server to use a specic routing table. After you congure this setting, the VRF table is used to look up the destination

address.

NOTE: To enable HTTP to be VRF-aware, as a prerequisite you must rst dene the

VRF.

You can specify either the management VRF or a nondefault VRF to congure the VRF awareness setting.

When you specify the management VRF, the copy operation that is used to transfer les to and from an HTTP server utilizes the VRF table

corresponding to the Management VRF to look up the destination. When you specify a nondefault VRF, the VRF table corresponding to

that nondefault VRF is used to look up the HTTP server.

However, these changes are backward-compatible and do not aect existing behavior; meaning, you can still use the ip http source-

interface command to communicate with a particular interface even if no VRF is congured on that interface

NOTE: If the HTTP service is not VRF-aware, then it uses the global routing table to perform the look-up.

To enable an HTTP client to look up the VRF table corresponding to either management VRF or any nondefault VRF, use the ip http

vrf command in CONFIGURATION mode.

• Congure an HTTP client with a VRF that is used to connect to the HTTP server.

CONFIGURATION MODE

Dell(conf)#ip http vrf {management | <vrf-name>}

Verify Software Images Before Installation

To validate the software image on the ash drive, you can use the MD5 message-digest algorithm or SHA256 Secure Hash Algorithm, after

the image is transferred to the system but before the image is installed. The validation calculates a hash value of the downloaded image le

on system’s ash drive, and, optionally, compares it to a Dell Networking published hash for that le.

The MD5 or SHA256 hash provides a method of validating that you have downloaded the original software. Calculating the hash on the

local image le and comparing the result to the hash published for that le on iSupport provides a high level of condence that the local

copy is exactly the same as the published software image. This validation procedure, and the verify {md5 | sha256} command to

support it, prevents the installation of corrupted or modied images.

The verify {md5 | sha256} command calculates and displays the hash of any le on the specied local ash drive. You can

compare the displayed hash against the appropriate hash published on iSupport. Optionally, you can include the published hash in the

verify {md5 | sha256} command, which displays whether it matches the calculated hash of the indicated le.

To validate a software image:

1 Download Dell Networking OS software image le from the iSupport page to the local (FTP or TFTP) server. The published hash for

that le displays next to the software image le on the iSupport page.

2 Go on to the Dell Networking system and copy the software image to the ash drive, using the copy command.

3 Run the verify {md5 | sha256} [ flash://]img-file [hash-value] command. For example, verify sha256

flash://FTOS-SE-9.5.0.0.bin

4 Compare the generated hash value to the expected hash value published on the iSupport page.

Getting Started