C H A P T E R 6CLI Command Summary
| Config DNS Flash Commands | |
Command | Description |
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config dns flash | Moves to the flash command level. | |
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config dns flash | Displays flash configuration information. | |
info | For example: |
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| Flash Information: |
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| Flash State: Disabled | Aliasing: Disabled |
| Polling Interval: 10 | Number of Polls: 100 |
| Max Broadcast Delay: 500 Drop Misses: 3 | |
| Aliasing: With multiple 7190s, Flash responses can pass through | |
| a firewall because of the aliasing of source IPs. | |
| Polling Interval: How frequently Flash Peers are polled to | |
| determine the network latency |
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| Number of Polls: The number of Flash Peer polls to be used in | |
| calculating the average network latency between Flash Peers. The | |
| more polls, the slower the 7190 reacts to bursts of network | |
| congestion; but it is also slower to recover from long periods of | |
| congestion. |
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| Max Broadcast Delay: The maximum amount of time that a | |
| DNS response can be delayed to compensate for network latency | |
| between Flash Peers. If exceeded, may become out of sync with | |
| other peers. |
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| Drop Misses: The number of consecutive chances allowed for a | |
| response (to a poll message) before the peer 7190 is considered | |
| unavailable. |
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enable | Enables Flash load balancing. |
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disable | Disables Flash load balancing. |
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NOTE: If Flash is |
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disabled, but the load |
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balancing method selected |
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is still ‘flash’, this results in |
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an unweighted random (or ‘straight’ random) distribution.
Config DNS Flash Commands
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