简介
通过使用WEB缓存通信协议(WCCP)，本文描述如何配置Reverse-Proxy Caching的Cisco缓存引擎。
硬件和软件版本
此配置使用下面软件和硬件版本开发并且被测试。
- 在实验室环境的Cisco Cache Engine 560清除配置运行思科高速缓存软件版本2.3和ACNS版本4.0的和ACNS 5.0。
- 运行Cisco IOS软件版本12.1(2)的Cisco 2600路由器。
使用在实验室环境的设备本文提供的信息创建。设备开始与原始。如果在真实网络工作，请确保您了解命令的潜在影响使用它以前。
网络图
配置
Cache Engine 560
(缓存软件软件版本2.3或ACNS软件版本4.0或5.0)
Current configuration:
!
!
user add admin uid 0
password 1 "eeSdy9dcy"
capability admin-access
!
!
!
hostname ce
!
interface ethernet 0
ip address 10.0.0.2 255.255.255.0
!--- Important: If you configure the Cache Engine
!--- with a private address, it must get translated
!--- to a public address.
ip broadcast-address 10.0.0.255
exit
!
interface ethernet 1
exit
!
ip default-gateway 10.0.0.1
ip name-server 171.70.168.183
ip domain-name cisco.com
ip route 0.0.0.0 0.0.0.0 10.0.0.1
cron file /local/etc/crontab
!
wccp router-list 1 10.0.0.1
wccp reverse-proxy router-list-num 1
wccp version 2
!
authentication login local enable
authentication configuration local enable
rule no-cache url-regex .*cgi-bin.*
rule no-cache url-regex .*aw-cgi.*
!
!
Cisco 2600 路由器
(Cisco IOS软件版本12.1[2])
Building configuration...
Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 2611-5
!
enable secret 5 $1$9VQ.$BTPbq8xlE2dsKwKPDDmpL/
!
!
ip subnet-zero
ip wccp 99
!
!
interface Ethernet0/0
description Interface to the Internet
ip address 172.17.63.194 255.255.255.192
no ip redirects
!
interface Serial0/0
no ip address
no ip mroute-cache
shutdown
!
interface Ethernet0/1
ip address 10.0.0.1 255.255.255.0
!
interface Ethernet1/0
ip address 10.1.0.1 255.255.255.0
ip wccp 99 redirect out
!
interface Ethernet1/1
no ip address
shutdown
full-duplex
!
interface Ethernet1/2
no ip address
shutdown
!
interface Ethernet1/3
no ip address
shutdown
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.17.63.193
!
!
line con 0
transport input none
line aux 0
line vty 0 4
login
!
end
debug 和 show 命令
在发出 debug 命令之前，请参阅有关 Debug 命令的重要信息。
Cache Engine Debug与Show调试指令：
- show wccp cache -显示WCCP CE信息
- show wccp flows -显示WCCP数据包流
- show wccp routers -显示WCCP路由器列表
- show wccp services -配置的Show wccp services
- show wccp slowstart -显示WCCP缓慢的开始
- show wccp status -显示WCCP运行状态
- show statistics http savings -显示HTTP节省统计数据
- 调试WCCP全WCCP打开所有调试
- debug wccp events - WCCP事件
- debug wccp packets - WCCP包相关信息
路由器Debug与Show调试指令：
- show ip wccp 99 detail -此命令显示Cache Engine和WCCP路由器统计数据服务组的。
- show ip wccp 99 view -服务组查阅信息
- debug ip wccp events - WCCP事件
- debug ip wccp packets - WCCP包相关信息
验证
验证反向代理高速缓冲存储用这些命令工作。
发出此命令检查WCCP缓存/内容引擎状态：
router#sh ip wccp 99 detail
WCCP Cache-Engine information:
IP Address: 10.0.0.2
Protocol Version: 2.0
State: Usable
!--- This cache is active.
Initial Hash Info: 00000000000000000000000000000000
00000000000000000000000000000000
Assigned Hash Info: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Hash Allotment: 256 (100.00%)
Packets Redirected: 93
Connect Time: 00:15:27
发出此命令检查在路由器的WCCP透明反向重定向：
router#sh ip wccp 99
Global WCCP information:
Router information:
Router Identifier: 172.17.63.194
Protocol Version: 2.0
Service Identifier: 99
Number of Cache Engines: 1
Number of routers: 1
Total Packets Redirected: 93
!--- The router is redirecting.
Redirect access-list: -none-
Total Packets Denied Redirect: 0
Total Packets Unassigned: 0
Group access-list: -none-
Total Messages Denied to Group: 0
Total Authentication failures: 0
发出此命令检查在缓存/内容引擎的HTTP统计信息：
cache#sh statistic http request
Statistics - Requests
Total % of Requests
---------------------------------------------------
Total Received Requests: 23 -
Forced Reloads: 2 8.7
Client Errors: 0 0.0
Server Errors: 0 0.0
URL Blocked (Reset): 0 0.0
URL Blocked: 0 0.0
Sent to Outgoing Proxy: 0 0.0
Failures from Outgoing Proxy: 0 0.0
Excluded from Outgoing Proxy: 0 0.0
ICP Client Hits: 0 0.0
ICP Server Hits: 0 0.0
If-Range Hits: 0 0.0
HTTP 0.9 Requests: 0 0.0
HTTP 1.0 Requests: 0 0.0
HTTP 1.1 Requests: 23 100.0
HTTP Unknown Requests: 0 0.0
Non HTTP Requests: 0 0.0
Non HTTP Responses: 0 0.0
Chunked HTTP Responses: 0 0.0
Http Miss Due To DNS: 0 0.0
Http Deletes Due To DNS: 0 0.0
Objects cached for min ttl: 4 17.4
发出此命令验证请求高速缓冲存储：
cache#sh stat http sav
Statistics - Savings
Requests Bytes
-----------------------------------------------------------
Total: 23 16481
Hits: 6 2205
Miss: 17 14276
Savings: 25.0 % 13.4 %
这些Cache Engine命令用于此配置。
- WCCP版本{1|2}
- wccp router-list number ip-address
- WCCP router-list-num编号
这些路由器命令用于此配置。
- ip WCCP {web-cache|服务编号}
- ip WCCP {web-cache|服务编号}重定向
- ip WCCP版本2
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