Route Update Queue Length (CR00010196) | 44 |
Route Update Queue Length (CR00010196)
When hardware learning delay is enabled (the default), the switch learns new routes in software, then places them into a queue for adding them to its hardware routing table. Defaults have been set for the maximum number of entries in the queue, and depend on the amount of memory installed on the switch, as shown in the following table:
Memory Size (Mbytes) | Default length (number of entries) | Maximum possible length (number of entries) |
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up to 128 | 200000 | 200000 |
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1000000 | 1500000 | |
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more than 256 | 3000000 | 4000000 |
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You can alter the length of the queue, by using the following new command to specify the maximum number of entries in the queue:
set switch hwrouteupdate=1..maximum
The maximum depends on the amount of memory on the switch, as shown in the table above.
Output of the show switch command has been expanded to display information about the queue settings (Figure 3, Figure 4, Table 1).
Figure 3: Output of the show switch command when hardware learning delay is disabled
Switch Configuration
Switch Address | |
Learning | ON |
Ageing Timer | ON |
IP route: |
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Learn delay | OFF |
queue limit | 1000000 |
queue maximum | 1500000 |
queue default | 1000000 |
Updating hardware(status) | 0 (Pending) |
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