Case Configuration Topology:
2 configuration requirements Case
1, the configuration according to the IP topology,
2, between five routers running OSPF protocol, and released directly connected segment loopback interface;
3, in R3, destined 1.1.1.1 4.4. 4.4 data flow control is done, as the setting CIR 8000, bE 1000 and BC;
4, in R3, 2.2.2.2 5.5.5.5 data destined to do traffic shaping, setting CIR to 8000, bE 1000 and BC;
Case Configuration Roadmap
1. According topology configuration IP address
R1:
interface Loopback0
ip address 1.1.1.1 255.255.255.0
ip ospf network point-to-point
interface Serial1/1
ip address 13.1.1.1 255.255.255.0
serial restart-delay 0
R2:
interface Loopback0
ip address 2.2.2.2 255.255.255.0
ip ospf network point-to-point
interface Serial1/2
ip address 23.1.1.1 255.255.255.0
R3：
interface Loopback0
ip address 3.3.3.3 255.255.255.0
interface Serial1/1
ip address 13.1.1.2 255.255.255.0
interface Serial1/2
ip address 23.1.1.2 255.255.255.0
interface Serial1/4
ip address 34.1.1.2 255.255.255.0
interface Serial1/5
ip address 35.1.1.2 255.255.255.0
R4：
interface Loopback0
ip address 4.4.4.4 255.255.255.0
ip ospf network point-to-point
interface Serial1/4
ip address 34.1.1.1 255.255.255.0
R5：
interface Loopback0
ip address 5.5.5.5 255.255.255.0
ip ospf network point-to-point
interface Serial1/5
ip address 35.1.1.1 255.255.255.0
2. Configure OSPF
R1：
router ospf 100
router-id 91.1.1.1
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 0
network 13.1.1.0 0.0.0.255 area 0
R2：
router ospf 100
router-id 92.2.2.2
log-adjacency-changes
network 2.2.2.0 0.0.0.255 area 0
network 23.1.1.0 0.0.0.255 area 0
R3：
router ospf 100
router-id 93.3.3.3
log-adjacency-changes
network 13.1.1.0 0.0.0.255 area 0
network 23.1.1.0 0.0.0.255 area 0
network 34.1.1.0 0.0.0.255 area 0
network 35.1.1.0 0.0.0.255 area 0
R4：
router ospf 100
router-id 94.4.4.4
log-adjacency-changes
network 4.4.4.0 0.0.0.255 area 0
network 34.1.1.0 0.0.0.255 area 0
R5：
router ospf 100
router-id 95.5.5.5
log-adjacency-changes
network 5.5.5.0 0.0.0.255 area 0
network 35.1.1.0 0.0.0.255 area 0
3. Configure traffic control in R3
access-list 100 permit ip host 1.1.1.1 host 4.4.4.4
class-map match-all 1-4 /创建类图/
match access-group 100
policy-map 1-4 /创建策略图/
class 1-4 /调用类图/
police cir 8000 bc 1000 be 1000 conform-action transmit exceed-action drop /流量管制，速率为8000 bit，BC为1000，Be为1000，正常流量传输，超出流量丢弃/
4. configure traffic shaping R3
access-list 101 permit ip host 2.2.2.2 host 5.5.5.5
class-map match-all 2-5
match access-group 101
policy-map 2-5
class 2-5
shape average 8000 1000 1000
/做流量整形，承诺速率为8000bit，BC为1000，Be为1000,超出的流量缓存/
Case configuration
1, the configuration is complete, 1.1.1.1 to ping 4.4.4.4, packet size byte are 1000, 500byte, 300byte:
2, the configuration is complete, with the R2 2.2.2.2ping 5.5.5.5, packet size byte to 1000:
3, the configuration is complete, view the policy set in shaping the R3:
R3#show policy-map interface serial 1/2
Serial1/2
Service-policy output: 2-5
Class-map: 2-5 (match-all)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: access-group 101
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
shape (average) cir 8000, bc 1000, be 1000
target shape rate 8000
Class-map: class-default (match-any)
56 packets, 13588 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 56/13648
4. After the configuration, with the R2 2.2.2.2ping 5.5.5.5, the packet size of 2001 byte:
Summary and other
1, traffic control and traffic shaping token bucket calculations whether the traffic congestion;
2, the token bucket parameter has committed information rate CIR, adding the number of tokens the BC, the second bucket rate the BE;
. 3, control will flow beyond the token bucket discards;
4, will exceed the traffic shaping token bucket cached, knows the available bandwidth when enough to continue transmission;
5, shaping buffer space is limited, when the packet size exceeds the limit, the data may be discarded;
