Example for Configuring Interface-based Rate Limiting
Networking Requirements
As shown in Figure 4-14, the Switch connects to the router through GE0/0/3. Enterprise departments 1 and 2 are connected to GE0/0/1 and GE0/0/2 of the Switch and access the Internet through the Switch and router.
Services do not need to be differentiated, but bandwidth for each department needs to be limited. For department 1, incoming traffic must be allocated guaranteed bandwidth of 8 Mbit/s. For department 2, incoming traffic must be allocated guaranteed bandwidth of 5 Mbit/s.
Configuration Roadmap
- Configure interfaces of the Switch to enable users to access the Internet.
- Configure rate limiting for all incoming traffic on GE0/0/1 and GE0/0/2 of the Switch.
Procedure
- Create VLANs and configure interfaces on the Switch.
# Create VLAN 100 and VLAN 200.
<HUAWEI> system-view [HUAWEI] sysname Switch [Switch] vlan batch 100 200
# Configure GE0/0/1, GE0/0/2, and GE0/0/3 as trunk interfaces, and configure GE0/0/1 to allow VLAN 100, GE0/0/2 to allow VLAN 200, and GE0/0/3 to allow VLAN 100 and VLAN 200.
[Switch] interface gigabitethernet 0/0/1 [Switch-GigabitEthernet0/0/1] port link-type trunk [Switch-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 [Switch-GigabitEthernet0/0/1] quit [Switch] interface gigabitethernet 0/0/2 [Switch-GigabitEthernet0/0/2] port link-type trunk [Switch-GigabitEthernet0/0/2] port trunk allow-pass vlan 200 [Switch-GigabitEthernet0/0/2] quit [Switch] interface gigabitethernet 0/0/3 [Switch-GigabitEthernet0/0/3] port link-type trunk [Switch-GigabitEthernet0/0/3] port trunk allow-pass vlan 100 200 [Switch-GigabitEthernet0/0/3] quit
- Configure interface-based rate limiting.
# Set the CIR for incoming traffic on GE0/0/1 to 8192 kbit/s.
[Switch] interface gigabitethernet 0/0/1 [Switch-GigabitEthernet0/0/1] qos lr inbound cir 8192 [Switch-GigabitEthernet0/0/1] quit
# Set the CIR for incoming traffic on GE0/0/2 to 5120 kbit/s.
[Switch] interface gigabitethernet 0/0/2 [Switch-GigabitEthernet0/0/2] qos lr inbound cir 5120 [Switch-GigabitEthernet0/0/2] quit
- Verify the configuration.
# View the interface-based rate limiting configuration.
[Switch] display qos lr inbound interface gigabitethernet 0/0/1 GigabitEthernet0/0/1 lr inbound: cir: 8192 Kbps, cbs: 1024000 Byte
[Switch] display qos lr inbound interface gigabitethernet 0/0/2 GigabitEthernet0/0/2 lr inbound: cir: 5120 Kbps, cbs: 640000 Byte
Configuration Files
Switch configuration file
# sysname Switch # vlan batch 100 200 # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 100 qos lr inbound cir 8192 cbs 1024000 # interface GigabitEthernet0/0/2 port link-type trunk port trunk allow-pass vlan 200 qos lr inbound cir 5120 cbs 640000 # interface GigabitEthernet0/0/3 port link-type trunk port trunk allow-pass vlan 100 200 # return
