流量策略和整型－－整型篇 
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 拓扑描述
R1: f1/0 10.1.1.1/24 R2: f0/0 10.1.2.2/24 R3: f0/0 10.1.2.3/24 f1/0 10.1.1.3/24 s2/0 10.1.3.3/24 R4: s2/0 10.1.3.4/24 全网启用RIPv2 初始配置
R1 conf t int f1/0 ip ad 10.1.1.1 255.255.255.0 no shut router rip ver 2 no au net 10.0.0.0 line vty 0 4 password cisco login end R2
conf t int f 0/0 ip ad 10.1.2.2 255.255.255.0 no shut router rip ver 2 no au net 10.0.0.0 end R3
conf t int f 0/0 ip ad 10.1.2.3 255.255.255.0 no shut int f1/0 ip ad 10.1.1.3 255.255.255.0 no shut int s2/0 ip ad 10.1.3.3 255.255.255.0 encap f no arp f no frame inver frame map ip 10.1.3.4 304 b no shut router rip ver 2 no au net 10.0.0.0 end R4
conf t int s2/0 ip ad 10.1.3.4 255.255.255.0 encap f no arp f no frame inver frame map ip 10.1.3.3 403 b no shut router rip ver 2 no au net 10.0.0.0 line vty 0 4 password cisco login end 1，使用Generic Traffic Shaping(GTS)对流量整型
在R3的F1/0上对R4去往R1的telnet流量整型，限速1MBPS 在R3的F0/0上对R4去往R2的所有流量整型，限速5MBPS 在R3的S2/0上对R1去往R4的UDP流量整型， 发送速率500KBPS，最低速率300KBPS R3 conf t access-list 100 permit tcp host 10.1.3.4 host 10.1.1.1 eq telnet int f1/0 traffic-shape group 100 1000000 int f0/0 traffic-shape rate 5000000 int s2/0 traffic-shape rate 500000 traffic-shape adaptive 300000
traffic-shape fecn-adapt
end 校验
先在R4上PING R2 R4#ping 10.1.2.2 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 16/92/248 ms 在R4上TELNET R1
R4#telnet 10.1.1.1 Trying 10.1.1.1 ... Open User Access Verification Password:
R1>quit
[Connection to 10.1.1.1 closed by foreign host]
在R1上trace R4 R1#trace 10.1.3.4 Type escape sequence to abort.
Tracing the route to 10.1.3.4 1 10.1.1.3 84 msec 32 msec 72 msec
2 10.1.3.4 56 msec * 100 msec 在R3上看结果 R3#sh traffic-shape statistics f1/0 Acc. Queue Packets Bytes Packets Bytes Shaping I/F List Depth Delayed Delayed Active Fa1/0 100 0 30 1667 0 0 no R3#sh traffic-shape statistics f0/0 Acc. Queue Packets Bytes Packets Bytes Shaping I/F List Depth Delayed Delayed Active Fa0/0 0 17 1673 0 0 no R3#sh traffic-shape f1/0 Interface Fa1/0
Access Target Byte Sustain Excess Interval Increment Adapt VC List Rate Limit bits/int bits/int (ms) (bytes) Active - 100 1000000 6250 25000 25000 25 3125 - R3#sh traffic-shape f0/0 Interface Fa0/0
Access Target Byte Sustain Excess Interval Increment Adapt VC List Rate Limit bits/int bits/int (ms) (bytes) Active - 5000000 31250 125000 125000 25 15625 - R3#sh traffic-shape statistics s2/0
Acc. Queue Packets Bytes Packets Bytes Shaping I/F List Depth Delayed Delayed Active Se2/0 101 0 3 96 0 0 no R3#sh traffic-shape s2/0 Interface Se2/0
Access Target Byte Sustain Excess Interval Increment Adapt VC List Rate Limit bits/int bits/int (ms) (bytes) Active - 101 500000 3000 12000 12000 24 1500 BECN 2, Class-based Shaping
在R3上定义两个类CBS1和CBS2，使得R1去往R4的telnet流量的带宽512K，在出口时整型为平均速率为600K。R2去往R4的流量时整型，使得其peak值为256K R3 conf t access-list 100 permit tcp host 10.1.1.1 host 10.1.3.4 eq telnet access-list 101 permit ip host 10.1.2.2 host 10.1.3.4 class-map CBS1 match access-group 100 class-map CBS2 match access-group 101 policy-map TOR4 class CBS1 shape average 600000 bandwidth 512 class CBS2 shape peak 256000 int s2/0 service-policy output TOR4 end 校验
在R1上TELNET R4 R1#trace 10.1.3.4 Type escape sequence to abort.
Tracing the route to 10.1.3.4 1 10.1.1.3 84 msec 32 msec 72 msec
2 10.1.3.4 56 msec * 100 msec R1#telnet 10.1.3.4 Trying 10.1.3.4 ... Open User Access Verification Password:
R4>quit [Connection to 10.1.3.4 closed by foreign host]
R1# 在R2上PING R4
R2#ping 10.1.3.4 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.3.4, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 8/66/148 ms 在R3上检查结果 R3#SH policy-map int s2/0 Serial2/0
Service-policy output: TOR4
Class-map: CBS1 (match-all)
23 packets, 1053 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: access-group 100 Traffic Shaping Target/Average Byte Sustain Excess Interval Increment Rate Limit bits/int bits/int (ms) (bytes) 600000/600000 3750 15000 15000 25 1875 Adapt Queue Packets Bytes Packets Bytes Shaping
Active Depth Delayed Delayed Active - 0 23 1053 0 0 no Queueing Output Queue: Conversation 265 Bandwidth 512 (kbps) Max Threshold 64 (packets) (pkts matched/bytes matched) 1/53 (depth/total drops/no-buffer drops) 0/0/0 Class-map: CBS2 (match-all)
20 packets, 2080 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: access-group 101 Traffic Shaping Target/Average Byte Sustain Excess Interval Increment Rate Limit bits/int bits/int (ms) (bytes) 512000/256000 1984 7936 7936 31 1984 Adapt Queue Packets Bytes Packets Bytes Shaping
Active Depth Delayed Delayed Active - 0 20 2080 0 0 no Class-map: class-default (match-any) 14 packets, 524 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: any 本文出自 “穿过地狱去看海” 博客，谢绝转载！ 本文出自 51CTO.COM技术博客 |
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