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Queuing Overview 305
The highlighted command specifies that the high queue has been reduced to a capacity of 10
records, the medium and normal have not been altered, and the low queue has been increased
in capacity to 90 records. This enables faster processing of the high queue and more potential
holding space for the low queue.
Applying the Priority List to the Interface
Once the priority list is created, it must be associated with an interface. In the preceding
examples, this was evident. The priority list was activated on the interface once the priority-
group command was entered. Note that the priority list number was the same as the priority
group number. Although it is possible to apply the same priority list to multiple interfaces, it is
not possible to configure multiple priority groups on a single interface.
Verifying Priority Queuing
Verifying your queuing configuration is relatively simple. The most useful command is show
queueing. It shows the detail of the priority lists configured on the router and the appropriate
details of each list. Example 10-6 shows the command output for show queueing.
Example 10-5
Modifying Queue Limits
RouterA(config)#access-list 101 permit tcp any any eq telnet
RouterA(config)#priority-list 1 protocol ip high list 101
RouterA(config)#priority-list 1 interface Ethernet 0 high
RouterA(config)#priority-list 1 protocol ip medium
RouterA(config)#priority-list 1 protocol ipx medium
RouterA(config)#priority-list 1 protocol Appletalk normal
RouterA(config)#priority-list 1 default low
RouterA(config)#priority-list 1 queue-limit 10 40 60 90
RouterA(config)#interface serial 0
RouterA(config-if)#priority-group 1
Example 10-6
show queuing priority Command Displays Priority List Details
RouterA(config)#show queueing priority
Current priority queue configuration:
List Queue Args
1 low default
1 high protocol ip list 101
1 medium protocol ip
1 medium protocol ipx
1 normal protocol appletalk
1 high limit 10
1 low limit 90