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1、IP城域网汇聚层及接入层SRRP+EthOAM热备组网测试方案广州移动2013年3月版本变更记录日期版本说明作者2013.31.0创建修改文档林建明目 录1. 前言32. 测试网络的物理拓扑33. 测试准备43.1 设备的选型43.2 测试人员54. 测试方法54.1 “小V”专线业务热备测试54.1.1 设备配置54.1.2 测试结果54.2 “大V”专线业务热备测试64.2.1 设备配置64.2.2 测试结果65. 测试总结81. 前言 2. 测试网络的物理拓扑测试采用网络拓扑与现网的设备是密切相关的。既考虑到网络的现状，也要考虑未来的网络结构的演进和变化，本次测试设计到两个类型的拓扑图。
2、“小v”型结构如下图， OLT到SW的上联链路进行捆绑（快速LACP），7750和SW直接使用EFM功能防止单通，SR之间的采用SRRP实现专线业务的热备，。“小v”型网络拓扑结构 “大v”型结构如下图，OLT直接上联到两台SW。SW和SR互连，开启EFM功能，SR之间的采用SRRP实现专线业务的热备“大v”型网络拓扑结构非共享网关结构如下图，结构采用小V型，但是每个用户拥有独立的网段，使用不同的网关IP：非共享网关网络拓扑结构3. 测试准备3.1 设备的选型本次测试SR/BRAS选择上海贝尔的 7750，使用9.0 R7的软件版本。交换机采用华为9312产品，OLT分别采用华为和阿朗的设备。
3、（阿朗OLT不具备测试条件，配置方法可以参考佛山公司的测试结果）SR/BRAS：XY-BRAS01，XH-BRAS01，XH-SR01SW：先烈东、东风中OLT：先烈东OLT（华为）大V型：链路类型本端设备本端端口对端设备对端端口SW-SRXLD-SWETH-TRUNK 6GE10/0/5XY-BRAS01G1/2/4 LAG4SW-SRDFZ-SWETH-TRUNK 4GE12/0/2XH-BRAS01G2/2/4 LAG23SW-OLTXLD-SWETH-TRUNK 4(G10/0/4,G12/0/4)XLD-OLTG11/0，12/0SW-OLTDFZ-SWG12/0/7 D101-1-
4、D3/D4XLD-OLT待调通小V型/非共享网关链路类型本端设备本端端口对端设备对端端口SW-SRXLD-SWETH-TRUNK 6GE10/0/5XY-BRAS01G1/2/4 LAG4SW-SRXLD-SWETH-TRUNK 2GE10/0/0GE12/0/2XH-SR01G1/2/14，G 10/2/9 LAG5SW-OLTXLD-SWETH-TRUNK 4(G10/0/4,G12/0/4)XLD-OLTG11/0，12/03.2 测试人员SR/BRASSWOLT广州移动林建明林建明文溯上海贝尔刘育平刘育平4. 测试方法4.1 “小V”专线业务热备测试4.1.1 设备配置热备配置方式：小
5、V型组网采用SRRP+LACP的方式，SR和SW之间启用LACP检测传输链路状态，2台SR之前启用SRRP同步信息路由发布配置：由于SRRP协议的主备用端口都是UP，主备SR同时发布路由，因此对于用户下行流量，会同时下发到主备用SR，流量到达备用的SR后，通过redundant-interface送回到主用SR，如下图所示：这样会导致备用侧的上下行重复流量，无形中导致可用带宽变小，因此，必须抑制备用侧发布路由，由于7750 启用SRRP后，会产生srrp-master和srrp-non-master两种类型的路由，备用侧只要抑制srrp-non-master类型的路由就可以了。4.1.2 设备
6、配置 4.1.2.1 GDGZ-MS-IPMAN-XY-BRAS01-7750 下行链路起LACP configrue lag 4 description To-GDGZ-MA-IPMAN-XLD-SW01-S9312-lag-6 mode access encap-type qinq port 1/2/4 lacp active administrative-key 32769 hold-time down 50 no shutdown exit4.1.2.2 IES 10000888配置group-interface和启用SRRP configure servicesdp 1033 mpl
7、s create description TO-GDGZ-MS-IPMAN-XH-SR01-7750-LOOPBACK0 far-end 120.196.27.33 ldp keep-alive shutdown exit no shutdown exitconfigure service ies 1000888 customer 1000 create redundant-interface “SRRP-XYBRAS01/XHSR01 create description SRRP-Testaddress 192.168.254.5/30 remote-ip 192.168.254.6 sp
8、oke-sdp 1033:10000888 create no shutdown exit exit subscriber-interface OAM-SRRP-Test create address 183.239.184.194/27 gw-ip-address 183.239.184.193 group-interface XLD-SW01-SDHandPTN createsrrp-enabled-routing redundant-interface “SRRP-XYBRAS01/XHSR01sap lag-4:1706.0 createexit sap lag-4:1706.100
9、create anti-spoof ip static-host ip 183.239.184.196 create no shutdown exit exit srrp 100088801 create keep-alive-interval 50 message-path lag-4:1706.0 priority 120 no shutdown exit exit exit4.1.2.3 GDGZ-MS-IPMAN-XY-BRAS01-7750路由发布配置configure router policy-options policy-statement Export_Submgmt_Rou
10、te entry 5 from prefix-list Direct_Route state srrp-non-master-SRRP备用侧发布的路由 exit to protocol bgp exit action reject -抑制该路由的发布 exit entry 10 from protocol sub-mgmt prefix-list Direct_Route exit to protocol bgp exit action accept exit exit exit4.1.2.4 GDGZ-MS-IPMAN-XH-SR01-7750下行链路起LACP configrue lag
11、5 description To-GDGZ-MA-IPMAN-DFZ-SW01-S9312-ETH-4 mode access encap-type qinq port 1/2/14port 10/2/9 lacp active administrative-key 32789 hold-time down 50 no shutdownexit4.1.2.5 IES 10000888配置group-interface和启用SRRPconfigure service sdp 1239 mpls create description TO-GDGZ-MS-IPMAN-XY-BRAS01-7750-
12、LOOPBACK0 far-end 120.196.27.239 ldp keep-alive shutdown exit no shutdown exitconfigure service ies 10000888 customer 1000 create redundant-interface “SRRP-XYBRAS01/XHSR01 create description OAM-SRRP-Test address 192.168.254.6/30 remote-ip 192.168.254.5 spoke-sdp 1239:10000888 create no shutdown exi
13、t exit subscriber-interface OAM-SRRP-Test create address 183.239.184.195/27 gw-ip-address 183.239.184.193 group-interface XLD-SW01-SDHandPTN-BF create redundant-interface “SRRP-XYBRAS01/XHSR01 sap lag-5:1706.0 create exit sap lag-5:1706.100 create anti-spoof ip static-host ip 183.239.184.196 create
14、no shutdown exit exit srrp 100088801 create keep-alive-interval 50 message-path lag-5:1706.0 priority 100 no shutdown exit exit4.1.2.6 GDGZ-MS-IPMAN-XH-SR01-7750路由发布配置configure router policy-options policy-statement Export_Submgmt_Route entry 5 from prefix-list Direct_Route state srrp-non-master-SRR
15、P备用侧发布的路由 exit to protocol bgp exit action reject -抑制该路由的发布 exit entry 10 from protocol sub-mgmt prefix-list Direct_Route exit to protocol bgp exit action accept exit exit exit4.1.3 测试结果测试编号4.1测试项目小“v”型专线业务热备测试测试目的验证专线业务备份功能，在链路中断时，业务得到保护的情况测试环境测试步骤1、在SW接终端分别ping网关和外网（百度）2、中断链路1，观察业务情况。3、恢复链路1，观察业务情
16、况预期结果主用链路1出现故障，业务可以正常切换到备用侧测试结果ping网关ping百度切换还原切换还原第1次3040第2次3060第3次2140ping外网由于涉及到主备SR用户路由的发布切换，因为中断时间会稍长备注主用侧路由：B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show router route-table 183.239.184.196 =Route Table (Router: Base)=Dest PrefixFlags Type Proto Age Pref Next HopInterface Name Metric -183.239.184.196/32 R
17、emote Sub Mgmt 21h18m09s 0 XLD-SW01-SDHandPTN 0-No. of Routes: 1Flags: L = LFA nexthop available B = BGP backup route available n = Number of times nexthop is repeated备用侧路由：A:GDGZ-MS-IPMAN-SR01-XH-AL# show router route-table 183.239.184.196 =Route Table (Router: Base)=Dest PrefixFlags Type Proto Age
18、 Pref Next HopInterface Name Metric -183.239.184.196/32 Remote Sub Mgmt 01d17h21m 0 SRRP-XYBRAS01/XHSR01 -备用SR的用户路由指向redundant-interface 0-No. of Routes: 1Flags: L = LFA nexthop available B = BGP backup route available n = Number of times nexthop is repeated切换前srrp状态：B:GDGZ-MS-IPMAN-BRAS01-XY-ALconf
19、igserviceies# show srrp 100088801 =SRRP Instance 100088801=Description : (Not Specified)Admin State : Up Oper State : masterOper Flags : subnetMismatch Preempt : yes One GARP per SAP : noMonitor Oper Group : None System IP : 120.196.27.239 Service ID : IES 10000888 Group If : XLD-SW01-SDHandPTN MAC
20、Address : 0c:a4:02:b0:71:45Grp If Description : N/AGrp If Admin State : Up Grp If Oper State: UpSubscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: UpAddress : 183.239.184.130/26 Gateway IP : 183.239.184.129Address : 183.239.184.194/27 Gateway IP : 183.239.184.193Redundant If :
21、OAM-SRRP Red If Admin State : Up Red If Oper State: UpAddress : 192.168.254.1/30 Red Spoke-sdp : 1243:10000888 Msg Path SAP : lag-4:1706.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e1Config Priority : 120 In-use Priority : 120Master Priority : 120 Keep-alive Interval : 50 deci-seconds Ma
22、ster Since : 04/15/2013 16:32:01Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : NoneB:GDGZ-MS-IPMAN-BRAS01-XY-ALconfigserviceies# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.196/32 ? 183.239.184.196/32 主用发布用户路由 100 0A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show sr
23、rp 100088803 =SRRP Instance 100088803=Description : (Not Specified)Admin State : Up Oper State : backupShuntOper Flags : subnetMismatch Preempt : yes One GARP per SAP : noMonitor Oper Group : None System IP : 120.196.27.243 Service ID : IES 10000888 Group If : XLD-OLT001 MAC Address : 8c:90:d3:71:00
24、:68Grp If Description : N/AGrp If Admin State : Up Grp If Oper State: UpSubscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: UpAddress : 183.239.184.131/26 Gateway IP : 183.239.184.129Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: UpAddress : 192.168.254.2/30
25、Red Spoke-sdp : 1239:10000888 Msg Path SAP : lag-23:1705.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e3Config Priority : 100 In-use Priority : 100Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 19:40:08Master Down Interval: 15.000 sec (Expires in 14.
26、050 sec)Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : NoneA:GDGZ-MS-IPMAN-BRAS01-XH-AL# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.196/32-没有向外发布用户路由切换后SRRP状态：B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show srrp 100088801 =SRRP Instance 100088801=Description : (No
27、t Specified)Admin State : Up Oper State : initializeOper Flags : subnetMismatch Preempt : yes One GARP per SAP : noMonitor Oper Group : None System IP : 120.196.27.239 Service ID : IES 10000888 Group If : XLD-SW01-SDHandPTN MAC Address : 0c:a4:02:b0:71:45Grp If Description : N/AGrp If Admin State :
28、Up Grp If Oper State: DownSubscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: DownAddress : 183.239.184.130/26 Gateway IP : 183.239.184.129Address : 183.239.184.194/27 Gateway IP : 183.239.184.193Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: UpAddress : 192.
29、168.254.1/30 Red Spoke-sdp : 1243:10000888 Msg Path SAP : lag-4:1706.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e1Config Priority : 120 In-use Priority : 120Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 16:32:01Master Down Interval: 0.000 sec (Exp
30、ires in 0.000 sec)Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : NoneA:GDGZ-MS-IPMAN-BRAS01-XY-AL# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.196/32-没有向外发布用户路由A:GDGZ-MS-IPMAN-SR01-XH-AL# show srrp 100088801 =SRRP Instance 100088801=Description : (Not Specified)Admin State : Up Oper State : masterOper Flags : subnetMismatc