switchport mode trunk no ip address duplex full speed 100 channel-group 1 mode auto channel-protocol pagp interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk no ip address duplex full speed 100 channel-group 1 mode auto channel-protocol pagp interface FastEthernet0/3 switchport trunk encapsulation dot1q switchport mode trunk no ip address duplex full speed 100 channel-group 1 mode auto channel-protocol pagp interface FastEthernet0/4 switchport trunk encapsulation dot1q switchport mode trunk no ip address duplex full speed 100 channel-group 1 mode auto channel-protocol pagp interface FastEthernet0/5 no switchport ip address 172.16.3.2 255.255.255.0 interface FastEthernet0/6 no ip address interface FastEthernet0/7 no ip address interface FastEthernet0/8 switchport access vlan 2 switchport trunk encapsulation dot1q switchport mode trunk no ip address interface FastEthernet0/9 no ip address interface FastEthernet0/10 no ip address interface FastEthernet0/11 no ip address interface FastEthernet0/12 no ip address interface FastEthernet0/13 switchport access vlan 2 no ip address interface FastEthernet0/14 switchport access vlan 2 no ip address interface FastEthernet0/15 switchport access vlan 2 no ip address interface FastEthernet0/16 switchport access vlan 2 no ip address interface FastEthernet0/17 no ip address interface FastEthernet0/18 no ip address interface FastEthernet0/19 no ip address interface FastEthernet0/20 no ip address interface FastEthernet0/21 no ip address interface FastEthernet0/22 no ip address interface FastEthernet0/23 no ip address interface FastEthernet0/24 no ip address interface GigabitEthernet0/1 no ip address interface GigabitEthernet0/2 no ip address interface Vlan1 ip address 192.168.3.5 255.255.255.0 interface Vlan2 ip address 172.16.2.1 255.255.255.0 define interface-range cuong FastEthernet0/1 - 4 router ospf 1 log-adjacency-changes network 172.16.2.0 0.0.0.255 area 0 network 172.16.3.0 0.0.0.255 area 0 ip classless ip http server line con 0 logging synchronous line vty 0 4 password cisco no login line vty 5 15 login monitor session 1 source interface Fa0/1 monitor session 1 destination interface Fa0/4 end Access#show run Building configuration Current configuration : 1684 bytes version 12.1 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption hostname Access enable password cisco ip subnet-zero no ip domain-lookup spanning-tree mode pvst no spanning-tree optimize bpdu transmission spanning-tree extend system-id interface Port-channel1 switchport mode trunk flowcontrol send off interface Port-channel2 interface FastEthernet0/1 switchport mode trunk channel-group 1 mode on interface FastEthernet0/2 switchport mode trunk channel-group 1 mode on interface FastEthernet0/3 switchport mode trunk channel-group 1 mode on interface FastEthernet0/4 switchport mode trunk channel-group 1 mode on interface FastEthernet0/5 switchport access vlan 2 switchport mode access mls qos cos 5 mls qos cos override interface FastEthernet0/6 mls qos cos override interface FastEthernet0/7 mls qos cos 3 interface FastEthernet0/8 interface FastEthernet0/9 interface FastEthernet0/10 interface FastEthernet0/11 interface FastEthernet0/12 interface FastEthernet0/13 interface FastEthernet0/14 interface FastEthernet0/15 interface FastEthernet0/16 interface FastEthernet0/17 interface FastEthernet0/18 interface FastEthernet0/19 interface FastEthernet0/20 interface FastEthernet0/21 interface FastEthernet0/22 interface FastEthernet0/23 interface FastEthernet0/24 switchport mode trunk interface Vlan1 ip address 192.168.3.10 255.255.255.0 no ip route-cache define interface-range cuong FastEthernet0/24 ip http server line con 0 logging synchronous line vty 0 4 no login line vty 5 15 login End Kiểm tra CoS trên Access Switch ccess#show mls qos interface fastEthernet 0/5 FastEthernet0/5 trust state: not trusted trust mode: not trusted COS override: ena default COS: 5 pass-through: none trust device: none Access#show mls qos interface fastEthernet 0/7 FastEthernet0/7 trust state: not trusted trust mode: not trusted COS override: dis default COS: 3 pass-through: none trust device: none Kiểm tra CAR: Ta sử dụng lệnh ping extend từ R1 đến R2 cho ta kết quả sau sử dụng kích thước gói bình thường R1#ping Protocol [ip]: Target IP address: 172.16.2.2 Repeat count [5]: 100 Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 100, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: . . Success rate is 98 percent (98/100), round-trip min/avg/max = 60/62/89 ms Sử dụng kích thước gói 1500 R1#ping Protocol [ip]: Target IP address: 172.16.2.2 Repeat count [5]: 100 Datagram size [100]: 1500 Timeout in seconds [2]: Extended commands [n]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 100, 1500-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Success rate is 71 percent (71/100), round-trip min/avg/max = 761/765/786 ms Ki ểm tra CBWFQ Core#show access-lists Extended MAC access list cuong permit host 000d.87fa.716b any Core#show access-lists Extended MAC access list cuong permit host 000d.87fa.716b any Core#show class Core#show class-map Class Map match-any class-default (id 0) Match any Class Map match-all cuong (id 2) Match access-group name cuong Core#show policy-map Policy Map cuong class cuong set ip dscp 40 class class-default trust cos . password cisco ip subnet-zero no ip domain-lookup spanning-tree mode pvst no spanning-tree optimize bpdu transmission spanning-tree extend system-id interface Port-channel1 switchport mode. http server line con 0 logging synchronous line vty 0 4 password cisco no login line vty 5 15 login monitor session 1 source interface Fa0/1 monitor session 1 destination interface Fa0/4. address interface Vlan1 ip address 192.168.3.5 255.255.255.0 interface Vlan2 ip address 172.16.2.1 255.255.255.0 define interface-range cuong FastEthernet0/1 - 4 router ospf 1 log-adjacency-changes