Configuring Symmetric Key - Brocade Communications Systems RFS6000 System Reference Manual

5
Listen to NTP
Broadcasts
Broadcast Delay
Auto Key
5. Click Apply to save changes to the screen. Navigating away from the screen without clicking the
6. Click the Revert button to undo the changes to the screen and revert to the last saved

Configuring Symmetric Key

Symmetric keys are algorithms for cryptography that use trivially related cryptographic keys for both
decryption and encryption. The encryption key is related to the decryption key, as they may be
identical or there is a simple mechanism to go between keys. The keys represent a shared secret
between the switch and its time resource.
To review existing Symmetric Key configurations, and (if necessary) add a new one:
1. Select Services > Secure NTP from the main menu tree.
2. Select the Symmetric Keys tab.
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Select this checkbox to allow the switch to listed over the network for SNTP
broadcast traffic. Once enabled, the switch and the SNTP broadcast server must be
on the same network.
Enter the estimated round-trip delay (between 1 and 999999 seconds) for SNTP
broadcasts between the SNTP broadcast server and the switch. Define the interval
based on the priority of receiving accurate system time frequently. Typically, no more
than one packet per minute is necessary to synchronize the switch to within a
millisecond of the SNTP broadcast server.
Use use an
a key is disabled, enabled only on the host or enabled only on the client.
Apply button results in all the changes to the screen being discarded.
configuration.
Auto Key
drop-down menu to specify whether the
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