Network Topology
Not involving
Problem Description
Below configuration is not working:
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qos carl 1 source-ip-address range 203.xxx.xxx.5 to 203.xxx.xxx.6 per-address shared-bandwidth
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interface GigabitEthernet0/1.20
ip address 203.xxx.xxx.5 255.255.255.252
qos car inbound carl 1 cir 1280 cbs 640000 ebs 0 green pass red discard yellow pass
qos car outbound carl 1 cir 1280 cbs 640000 ebs 0 green pass red discard yellow pass
vlan-type dot1q vid 20
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Process Analysis
According to the display qos car interface print, only the speed limit in the inbound direction takes effect, but the speed limit in the outbound direction does not take effect:
Interface: GigabitEthernet0/1.20
Direction: inbound
Rule: If-match carl 1
CIR 1280 (kbps), CBS 640000 (Bytes), EBS 0 (Bytes)
Green action : pass
Yellow action : pass
Red action : discard
Green packets : 3566703 (Packets), 328211932 (Bytes)
Yellow packets: 0 (Packets), 0 (Bytes)
Red packets : 6091 (Packets), 8197828 (Bytes)
Direction: outbound
Rule: If-match carl 1
CIR 1280 (kbps), CBS 640000 (Bytes), EBS 0 (Bytes)
Green action : pass
Yellow action : pass
Red action : discard
Green packets : 0 (Packets), 0 (Bytes)
Yellow packets: 0 (Packets), 0 (Bytes)
Red packets : 0 (Packets), 0 (Bytes)
Solution
Then we checked the configuration and found that the speed limit in the inbound direction and the outbound direction are effective for the source address segment. The reason is that the direction of the source-destination address is reversed. You need to pay attention to the direction of incoming and outgoing packets to configure the source-destination IP address object group.
Modify the configuration according to the script below to solve it.
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qos carl 1 source-ip-address range 203.xxx.xxx.5 to 203.xxx.xxx.6 per-address shared-bandwidth
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qos carl 2 destination-ip-address range 203.xxx.xxx.5 to 203.xxx.xxx.6 per-address shared-bandwidth
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interface GigabitEthernet0/1.20
ip address 203.xxx.xx.5 255.255.255.252
qos car inbound carl 1 cir 1280 cbs 640000 ebs 0 green pass red discard yellow pass
qos car outbound carl 2 cir 1280 cbs 640000 ebs 0 green pass red discard yellow pass
vlan-type dot1q vid 20
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