IP城域网汇聚层及接入层SRRP+EthOAM热备组网测试方案
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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
城域网与OLT配合采用VRRP测试方案
版本变更记录
日期 2013.3 版本 1.0 说明 创建修改文档 作者 林建明 -1-
城域网与OLT配合采用VRRP测试方案
目 录
1. 前言 ........................................................................................................................ 3 2. 测试网络的物理拓扑 ................................................................................................ 3 3. 测试准备 ................................................................................................................. 5
3.1 设备的选型 ..................................................................................................... 5 3.2 测试人员 ........................................................................................................ 6 4. 测试方法 ................................................................................................................. 6
4.1 “小V”专线业务热备测试 .............................................................................. 6
4.1.1 设备配置 ....................................................................................................................................... 6
4.1.2 测试结果 ......................................................................................................................................11 4.2 “大V”专线业务热备测试 ............................................................................ 18 4.2.1 设备配置 ..................................................................................................................................... 18 4.2.2 测试结果 ..................................................................................................................................... 26
5. 测试总结 ............................................................................................................... 55
-2-
1. 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。
“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,。
RadiusSR/BRAS1信信BRAS信信信信信信信信SR2信LACP信信信信信SRRPLACP信信信SWETH-TRUNKLACPOLT ONU信信1信信2
“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
城域网与OLT配合采用
VRRP测试方案
RadiusSR/BRAS1信信BRAS信信信信信信信信BRAS2信Eth-OAM信信信信信Eth-OAM信信信SW信信信SWSRRPEth-OAMOLTEth-OAM ONU信信1信信2
“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:
-4-
城域网与OLT配合采用
VRRP测试方案
RadiusSR/BRAS信信BRAS信信SRUpLACPEth-OAMLACPDownEth-OAM信信信SWEth-OAMETH-TRUNKLACPOLT ONU信信1信信2
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。(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-SR01 SW:先烈东、东风中 OLT:先烈东OLT(华为) 大V型:
链路类型 SW-SR SW-SR 本端设备 XLD-SW DFZ-SW 本端端口 ETH-TRUNK 6 GE10/0/5 ETH-TRUNK 4 -5-
对端设备 XY-BRAS01 XH-BRAS01 对端端口 G1/2/4 LAG4 G2/2/4 LAG23 城域网与OLT配合采用
VRRP测试方案
SW-OLT SW-OLT XLD-SW DFZ-SW GE12/0/2 ETH-TRUNK 4 (G10/0/4,G12/0/4) G12/0/7 D101-1-D3/D4 XLD-OLT XLD-OLT G11/0,12/0 待调通 小V型/非共享网关
链路类型 SW-SR 本端设备 XLD-SW 本端端口 对端设备 对端端口 ETH-TRUNK 6 XY-BRAS01 G1/2/4 LAG4 GE10/0/5 ETH-TRUNK 2 G1/2/14,G 10/2/9 GE10/0/0 XH-SR01 LAG5 GE12/0/2 ETH-TRUNK 4 XLD-OLT G11/0,12/0 (G10/0/4,G12/0/4) SW-SR XLD-SW SW-OLT XLD-SW
3.2 测试人员
广州移动 上海贝尔 SR/BRAS 林建明 刘育平 SW 林建明 刘育平 OLT 文溯 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:
-6-
城域网与OLT配合采用
VRRP测试方案
RadiusSR/BRAS1信信BRAS信信信信信信信信SR2信LACP信信信信信SRRPLACP信信信SWETH-TRUNKLACPOLT ONU
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 设备配置
信信1信信24.1.2.1 GDGZ-MS-IPMAN-XY-BRAS01-7750 下行链路起
LACP
configrue lag 4
description \ mode access encap-type qinq port 1/2/4
lacp active administrative-key 32769 hold-time down 50
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城域网与OLT配合采用
VRRP测试方案
no shutdown
exit
4.1.2.2 IES 10000888配置group-interface和启用SRRP
configure service
sdp 1033 mpls create
description \ far-end 120.196.27.33 ldp
keep-alive shutdown exit
no shutdown exit configure service ies 1000888 customer 1000 create
redundant-interface “SRRP-XYBRAS01/XHSR01\ description \ address 192.168.254.5/30 remote-ip 192.168.254.6 spoke-sdp 1033:10000888 create no shutdown exit exit
subscriber-interface \
address 183.239.184.194/27 gw-ip-address 183.239.184.193 group-interface \ srrp-enabled-routing
redundant-interface “SRRP-XYBRAS01/XHSR01\ sap lag-4:1706.0 create exit
sap lag-4:1706.100 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
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城域网与OLT配合采用
VRRP测试方案
exit exit exit
4.1.2.3 GDGZ-MS-IPMAN-XY-BRAS01-7750路由发布配置
configure router policy-options
policy-statement \ entry 5 from
prefix-list \
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 \ exit to
protocol bgp exit
action accept exit exit exit
4.1.2.4 GDGZ-MS-IPMAN-XH-SR01-7750下行链路起LACP
configrue lag 5
description \ mode access encap-type qinq port 1/2/14
port 10/2/9
lacp active administrative-key 32789
-9-
城域网与OLT配合采用
VRRP测试方案
hold-time down 50 no shutdown exit
4.1.2.5 IES 10000888配置group-interface和启用SRRP
configure service
sdp 1239 mpls create description
\
far-end 120.196.27.239 ldp
keep-alive shutdown exit
no shutdown exit
configure service ies 10000888 customer 1000 create
redundant-interface “SRRP-XYBRAS01/XHSR01\ description \
address 192.168.254.6/30 remote-ip 192.168.254.5 spoke-sdp 1239:10000888 create no shutdown exit exit
subscriber-interface \
address 183.239.184.195/27 gw-ip-address 183.239.184.193
group-interface \ 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 no shutdown exit exit
srrp 100088801 create keep-alive-interval 50
message-path lag-5:1706.0
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城域网与OLT配合采用
VRRP测试方案
priority 100 no shutdown exit exit
4.1.2.6 GDGZ-MS-IPMAN-XH-SR01-7750路由发布配置
configure router policy-options
policy-statement \ entry 5 from
prefix-list \
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 \ exit to
protocol bgp exit
action accept exit exit exit
4.1.3 测试结果 测试编号 测试项目 测试目的 4.1 小“v”型专线业务热备测试 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 -11-
城域网与OLT配合采用
VRRP测试方案
RadiusSR/BRAS1信信BRAS信信信信信信信信SR2信1LACP信信信信信SRRP2LACP测试环境 信信信SWETH-TRUNKLACPOLT ONU信信1信信2 1、在SW接终端分别ping网关和外网(百度) 测试步骤 2、中断链路1,观察业务情况。 3、恢复链路1,观察业务情况 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 第1次 第2次 第3次 主用侧路由: ping网关 切换 还原 3 0 3 0 2 1 ping百度 切换 还原 4 0 6 0 4 0 ping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 B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show router route-table 183.239.184.196 =========================================================== Route Table (Router: Base) -12-
城域网与OLT配合采用
VRRP测试方案
=========================================================== Dest Prefix[Flags] Type Proto Age Pref Next Hop[Interface Name] Metric ------------------------------------------------------------------------------- 183.239.184.196/32 Remote Sub Mgmt 21h18m09s 0 [XLD-SW01-SDHandPTN] 0 ------------------------------------------------------------------------------- No. of Routes: 1 Flags: 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 Prefix[Flags] Type Proto Age Pref Next Hop[Interface 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: 1 Flags: L = LFA nexthop available B = BGP backup route available n = Number of times nexthop is repeated 切换前srrp状态: -13-
城域网与OLT配合采用
VRRP测试方案
B:GDGZ-MS-IPMAN-BRAS01-XY-AL>config>service>ies# show srrp 100088801 =========================================================== SRRP Instance 100088801 ===========================================================Description : (Not Specified) Admin State : Up Oper State : master Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.239 Service ID : IES 10000888 Group If : XLD-SW01-SDHandPTN MAC Address : 0c:a4:02:b0:71:45 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.130/26 Gateway IP : 183.239.184.129 Address : 183.239.184.194/27 Gateway IP : 183.239.184.193 Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 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:e1 Config Priority : 120 In-use Priority : 120 Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 16:32:01 Fib Population Mode : all -14-
城域网与OLT配合采用
VRRP测试方案
VRRP Policy 1 : None VRRP Policy 2 : None B:GDGZ-MS-IPMAN-BRAS01-XY-AL>config>service>ies# 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 0 A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show srrp 100088803 =========================================================== SRRP Instance 100088803 =========================================================== Description : (Not Specified) Admin State : Up Oper State : backupShunt Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.243 Service ID : IES 10000888 Group If : XLD-OLT001 MAC Address : 8c:90:d3:71:00:68 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.131/26 Gateway IP : 183.239.184.129 Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 192.168.254.2/30 Red Spoke-sdp : 1239:10000888 Msg Path SAP : lag-23:1705.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e3 -15-
城域网与OLT配合采用
VRRP测试方案
Config Priority : 100 In-use Priority : 100 Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 19:40:08 Master Down Interval: 15.000 sec (Expires in 14.050 sec) Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None A: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 : (Not Specified) Admin State : Up Oper State : initialize Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.239 Service ID : IES 10000888 Group If : XLD-SW01-SDHandPTN MAC Address : 0c:a4:02:b0:71:45 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Down Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Down Address : 183.239.184.130/26 Gateway IP : 183.239.184.129 -16-
城域网与OLT配合采用
VRRP测试方案
Address : 183.239.184.194/27 Gateway IP : 183.239.184.193 Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 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:e1 Config Priority : 120 In-use Priority : 120 Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 16:32:01 Master Down Interval: 0.000 sec (Expires in 0.000 sec) Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None A: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 : master Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.33 Service ID : IES 10000888 Group If : XLD-SW01-SDHandPT* MAC Address : 00:21:05:40:30:2c -17-
城域网与OLT配合采用
VRRP测试方案
Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.195/27 Gateway IP : 183.239.184.193 Redundant If : SRRP-XYBRAS01/XHS* Red If Admin State : Up Red If Oper State: Up Address : 192.168.254.6/30 Red Spoke-sdp : 1239:10000888 Msg Path SAP : lag-5:1706.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e1 Config Priority : 100 In-use Priority : 100 Master Priority : 100 Keep-alive Interval : 50 deci-seconds Master Since : 04/16/2013 16:00:58 Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.196/32 ? 183.239.184.196/32 切换后发布用户路由 100 0
4.2 “大V”专线业务热备测试
4.2.1 设备配置
热备配置方式:
小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:
-18-
城域网与OLT配合采用
VRRP测试方案
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:
RadiusSR/BRAS1信信BRAS信信信信信信信信BRAS2信Eth-OAM信信信信信Eth-OAM信信信SW信信信SWSRRPEth-OAMOLTEth-OAM ONU
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。
信信1信信24.2.1.1 GDGZ-MS-IPMAN-XY-BRAS01-7750 全局配置
configure-> eth-cfm
domain 2 name \
association 5 format string name \” bridge-identifier 10000888 exit
-19-
城域网与OLT配合采用
VRRP测试方案
ccm-interval 1
remote-mepid 2 ---对端OLT的mepid exit exit
注:阿朗OLT一个MA可以对应多个MEP,因此两台SR的MA值可以配置成一致;华为OLT一个MA只允许对应一个MEP,因此两台SR的MA至必须区分开,此配置采用值后添加Master和Backup的首字母M、B加以区分。
4.2.1.2 GDGZ-MS-IPMAN-XY-BRAS01-7750全局配置
configure->service
oper-group \
4.2.1.3 IES 10000888配置group-interface的sap关联
ETH-CFM联动
configure service
sdp 1243 mpls create
description \ far-end 120.196.27.243 ldp
keep-alive shutdown exit
no shutdown exit configure service ies 1000888 customer 1000 create redundant-interface \ description \ address 192.168.254.1/30 remote-ip 192.168.254.2 spoke-sdp 1244:10000888 create no shutdown exit exit
subscriber-interface \
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城域网与OLT配合采用
VRRP测试方案
address 183.239.184.130/26 gw-ip-address 183.239.184.129 group-interface \ redundant-interface \ sap lag-4:1705.0 create oper-group \ eth-cfm
mep 1 domain 2 association 5 direction down –定义本地mepid
fault-propagation-enable use-if-tlv ccm-enable no shutdown exit exit exit
sap lag-4:1705.100 create anti-spoof ip
static-host ip 183.239.184.134 create no shutdown exit exit
srrp 100088803 create keep-alive-interval 50
message-path lag-4:1705.0 priority 120 no shutdown exit exit exit
4.2.1.4 GDGZ-MS-IPMAN-XY-BRAS01-7750路由发布配置
configure router policy-options
policy-statement \ entry 5 from
prefix-list \
state srrp-non-master-SRRP备用侧发布的路由 exit to
protocol bgp exit
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城域网与OLT配合采用
VRRP测试方案
action reject ---抑制该路由的发布 exit entry 10 from
protocol sub-mgmt
prefix-list \ exit to
protocol bgp exit
action accept exit exit exit
4.2.1.5 GDGZ-MS-IPMAN-XH-BRAS01-7750全局配置
configure-> eth-cfm
domain 2 name \
association 5 format string name \ bridge-identifier 10000888 exit
ccm-interval 1
remote-mepid 3 --对端OLT的mepid exit exit
注:阿朗OLT一个MA可以对应多个MEP,因此两台SR的MA值可以配置成一致;华为OLT一个MA只允许对应一个MEP,因此两台SR的MA至必须区分开,此配置采用值后添加Master和Backup的首字母M、B加以区分。
4.2.1.6 GDGZ-MS-IPMAN-XH-BRAS01-7750全局配置
configure->service
oper-group \
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城域网与OLT配合采用
VRRP测试方案
4.2.1.7 IES 10000888配置group-interface的sap关联
ETH-CFM联动
configure service
sdp 1239 mpls create description
\
far-end 120.196.27.239 ldp
keep-alive shutdown exit
no shutdown exit
configure service ies 10000888 customer 1000 create
redundant-interface \ description \
address 192.168.254.2/30 remote-ip 192.168.254.1 spoke-sdp 1239:10000888 create no shutdown exit exit
subscriber-interface \
address 183.239.184.131/26 gw-ip-address 183.239.184.129
group-interface \ redundant-interface \ sap lag-23:1705.0 create
oper-group \ eth-cfm
mep 1 domain 2 association 5 direction down ---本地MEPID
fault-propagation-enable use-if-tlv ccm-enable no shutdown exit exit exit
sap lag-23:1705.100 create
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城域网与OLT配合采用
VRRP测试方案
anti-spoof ip
static-host ip 183.239.184.134 create no shutdown exit exit
srrp 100088803 create keep-alive-interval 50
message-path lag-23:1705.0 priority 100 no shutdown exit exit
4.2.1.8 GDGZ-MS-IPMAN-XH-BRAS01-7750路由发布配置
configure router policy-options
policy-statement \ entry 5 from
prefix-list \
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 \ exit to
protocol bgp exit
action accept exit exit exit
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城域网与OLT配合采用
VRRP测试方案
4.2.1.9 XLD-OLT001(华为)
vlan 1705 smart port vlan 1705 0/19 0 port vlan 1705 0/20 0
cfm md 2 name-format string SRRP-HW level 3 #创建MD 索引号为2,string值为SRRP-HW,必须与SR配置的string值一致,级别为3。
cfm ma 2/1 name-format string XLD-OLT001-M cc-interval 1s #创建MA索引号为2/1,String值为BHGWGC-OLT001M,与对端ZHL-SR的值一致,CC报文发送周期为1秒
cfm ma 2/2 name-format string XLD-OLT001-B cc-interval 1s #创建MA索引号为2/2,String值为BHGWGC-OLT001B,与对端DRJL-SR的值一致,CC报文发送周期为1秒
cfm ma 2/1 vlan 1705 cfm ma 2/2 vlan 1705
cfm ma 2/1 meplist 1 #19/0端口mep id设为2,ID与对端保持一致 cfm ma 2/2 meplist 2 #20/0端口mep id设为3,ID与对端保持一致。 cfm ma 2/1 remote-mep-detect enable cfm ma 2/2 remote-mep-detect enable
cfm mep 2/1/1 direction down port 0/19/0 priority 7 #设置cfm报文向外转发
cfm mep 2/2/2 direction down port 0/20/0 priority 7 #设置cfm报文向外转发
cfm remote-mep-detect enable cfm enable
-25-
城域网与OLT配合采用
VRRP测试方案 4.2.2 测试结果 测试编号 测试项目 测试目的 4.1 大“v”型专线业务热备测试 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 RadiusSR/BRAS1信信BRAS信信信信信信信信BRAS2信1Eth-OAM信信信信信3Eth-OAM测试环境 信信信SW信信信SWSRRPEth-OAM24OLTEth-OAM ONU信信1信信2 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,观察业务情况 4. 中断链路2,观察业务情况。 5. 恢复链路2,观察业务情况 6. 中断链路3,观察业务情况。 7. 恢复链路3,观察业务情况 8. 中断链路4,观察业务情况。 9. 恢复链路4,观察业务情况 任意链路中断,都可以实现热备 预期结果 测试结果 ping网关 切换 还原 -26-
ping百度 切换 还原
城域网与OLT配合采用
VRRP测试方案
第1次 第2次 第3次 3 2 3 0 0 0 4 2 4 0 0 0 ping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 主用侧SR路由: B:GDGZ-MS-IPMAN-BRAS01-XY-AL>config>service>ies>sub-if>grp-if# show router route-table 183.239.184.134 =========================================================== Route Table (Router: Base) =========================================================== Dest Prefix[Flags] Type Proto Age Pref Next Hop[Interface Name] Metric ------------------------------------------------------------------------------- 183.239.184.134/32 Remote Sub Mgmt 06d00h23m 0 [XLD-OLT001] 0 备用侧SR路由: 备注 A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show router route-table 183.239.184.134 ========================================================= Route Table (Router: Base) ========================================================= Dest Prefix[Flags] Type Proto Age Pref Next Hop[Interface Name] Metric ------------------------------------------------------------------------------- 183.239.184.134/32 Remote Sub Mgmt 05d23h24m 0 [OAM-SRRP] ----redundancy 接口 0 切换前SRRP状态: B:GDGZ-MS-IPMAN-BRAS01-XY-AL>config>service>ies# show srrp 100088803 =========================================================== -27-
城域网与OLT配合采用
VRRP测试方案
SRRP Instance 100088803 =========================================================== Description : (Not Specified) Admin State : Up Oper State : master Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.239 Service ID : IES 10000888 Group If : XLD-OLT001 MAC Address : 0c:a4:02:b0:71:45 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.130/26 Gateway IP : 183.239.184.129 Address : 183.239.184.194/27 Gateway IP : 183.239.184.193 Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 192.168.254.1/30 Red Spoke-sdp : 1243:10000888 Msg Path SAP : lag-4:1705.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e3 Config Priority : 120 In-use Priority : 120 Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 19:41:40 Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None -28-
城域网与OLT配合采用
VRRP测试方案
B:GDGZ-MS-IPMAN-BRAS01-XY-AL>config>service>ies# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.134/32? 183.239.184.134/32 ---主用侧发布路由 100 0 A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show srrp 100088803 =========================================================== SRRP Instance 100088803 =========================================================== Description : (Not Specified) Admin State : Up Oper State : backupShunt—备用状态 Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.243 Service ID : IES 10000888 Group If : XLD-OLT001 MAC Address : 8c:90:d3:71:00:68 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.131/26 Gateway IP : 183.239.184.129 Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 192.168.254.2/30 Red Spoke-sdp : 1239:10000888 Msg Path SAP : lag-23:1705.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e3 -29-
城域网与OLT配合采用
VRRP测试方案
Config Priority : 100 In-use Priority : 100 Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/15/2013 19:40:08 Master Down Interval: 15.000 sec (Expires in 14.700 sec) Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.134/32 ----备用侧没有向外发布用户路由 切换后SRRP状态: A:GDGZ-MS-IPMAN-BRAS01-XH-AL>config>router>policy-options# show srrp 100088803 ===========================================================SRRP Instance 100088803 ===========================================================Description : (Not Specified) Admin State : Up Oper State : master Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.243 Service ID : IES 10000888 Group If : XLD-OLT001 MAC Address : 8c:90:d3:71:00:68 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.131/26 Gateway IP : 183.239.184.129 -30-
城域网与OLT配合采用
VRRP测试方案
Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 192.168.254.2/30 Red Spoke-sdp : 1239:10000888 Msg Path SAP : lag-23:1705.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e3 Config Priority : 100 In-use Priority : 100 Master Priority : 100 Keep-alive Interval : 50 deci-seconds Master Since : 04/10/2013 18:34:02 Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None A:GDGZ-MS-IPMAN-BRAS01-XH-AL# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.134 ? 183.239.184.134/32 --切换后由原备用发布路由 100 0 B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show srrp 100088803 ===========================================================SRRP Instance 100088803 ===========================================================Description : (Not Specified) Admin State : Up Oper State : initialize Oper Flags : subnetMismatch Preempt : yes One GARP per SAP : no Monitor Oper Group : None System IP : 120.196.27.239 Service ID : IES 10000888 -31-
城域网与OLT配合采用
VRRP测试方案
Group If : XLD-OLT001 MAC Address : 0c:a4:02:b0:71:45 Grp If Description : N/A Grp If Admin State : Up Grp If Oper State: Up Subscriber If : OAM-SRRP-Test Sub If Admin State : Up Sub If Oper State: Up Address : 183.239.184.130/26 Gateway IP : 183.239.184.129 Redundant If : OAM-SRRP Red If Admin State : Up Red If Oper State: Up Address : 192.168.254.1/30 Red Spoke-sdp : 1243:10000888 Msg Path SAP : lag-4:1705.0 Admin Gateway MAC : Oper Gateway MAC : 00:00:5e:00:01:e3 Config Priority : 120 In-use Priority : 120 Master Priority : 120 Keep-alive Interval : 50 deci-seconds Master Since : 04/10/2013 17:36:35 Master Down Interval: 0.000 sec (Expires in 0.000 sec) Fib Population Mode : all VRRP Policy 1 : None VRRP Policy 2 : None B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show router bgp neighbor 120.196.27.1 advertised-routes | match 183.239.184.134 ---变为备用后没有对外发布路由
A:GDGZ-MS-IPMAN-SR01-XY-AL# trace 183.239.184.134 traceroute to 183.239.184.134, 30 hops max, 40 byte packets 1 120.196.2.29 (120.196.2.29) 3.70 ms 3.88 ms 4.22 ms 2 120.197.23.2 (120.197.23.2) 5.16 ms 4.89 ms 5.08 ms
-32-
城域网与OLT配合采用
VRRP测试方案
3 192.168.254.1 (192.168.254.1) 7.84 ms 8.09 ms 6.59 ms 4 183.239.184.134 (183.239.184.134) 7.15 ms 6.58 ms 7.45 ms
4.3 非共享网关专线业务热备测试
4.3.1 设备配置
热备配置方式:
非共享网关采用主备SR之间启用eth-OAM协议,OAM协议通过SW透传的方式实现,主用SR只发不收OAM报文,备用SR只收不发OAM报文,当备用SR收到错误的eth-OAM报文,将会把OAM报文丢弃,同时把关联的sap设置为down。备用的对应逻辑端口是down的,主备配置相同的网关IP,备用侧绑定主用侧网关的MAC地址,如下图:
7750UpEth-OAM主用侧发送OAM报文LACPLACP7750DownEth-OAM备用侧只接收OAM报文由于remote-mepid未设置,因此sap点是down的
当主用侧链路中断时,由于LACP检测不到报文,使得主用SR的sap点down,备用SR将接收不到主用SR发出的eth-OAM报文,sap点状态变为UP,同时路由由备用侧发布,实现主备切换 路由发布配置:
由于备用SR的用户逻辑端口是down的,因此不存在主备用同时发布用户路由问题,如下图所示:
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城域网与OLT配合采用
VRRP测试方案
RadiusSR/BRAS信信BRAS信信SRUpLACPEth-OAMLACPDownEth-OAM信信信SWEth-OAMETH-TRUNKLACPOLT ONU信信1信信2
4.3.1.1 GDGZ-MS-IPMAN-XY-BRAS01-7750 下行链路起
LACP
configrue lag 4
description \ mode access encap-type qinq port 1/2/4
lacp active administrative-key 32769 hold-time down 50 no shutdown
exit
-34-
城域网与OLT配合采用
VRRP测试方案
4.3.1.2 GDGZ-MS-IPMAN-XY-BRAS01-7750 全局配置
configure-> eth-cfm
domain 4 name \
association 5 format string name \” bridge-identifier 30000888 exit
ccm-interval 1 ---不需要定义remote-mepid,该配置目的使得主备SR的eth-OAM配置不匹配,从而使得备用sap点状态down
exit exit
4.3.1.3 GDGZ-MS-IPMAN-XY-BRAS01-7750全局配置
configure->service
oper-group \
4.3.1.4 IES 10000888配置group-interface的sap关联
ETH-CFM联动
configure service vpls 30000888 customer 3000 create
description \ stp
shutdown exit
sap lag-4:1710.0 create ---选用一个vlan专门传送CFM信息 eth-cfm
mep 1 domain 4 association 5 direction down ccm-enable ----主用发eth-OAM报文 no shutdown exit exit oper-group \ exit
no shutdown exit
-35-
城域网与OLT配合采用
VRRP测试方案
configure service ies 1000888 customer 1000 create interface \ monitor-oper-group \ ----检测CFM通道的状态 address 183.239.184.225/27 sap lag-4:1707.100 create anti-spoof ip
static-host ip 183.239.184.226 create no shutdown exit exit exit exit
4.3.1.5 GDGZ-MS-IPMAN-XH-SR01-7750下行链路起LACP
configrue lag 5
description \ mode access encap-type qinq port 1/2/14
port 10/2/9
lacp active administrative-key 32789 hold-time down 50 no shutdown exit
4.3.1.6 GDGZ-MS-IPMAN-XH-SR01-7750 全局配置
configure-> eth-cfm
domain 4 name \
association 5 format string name \” bridge-identifier 30000888 exit
ccm-interval 1 ---不需要定义remote-mepid exit exit
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城域网与OLT配合采用
VRRP测试方案
4.3.1.7 GDGZ-MS-IPMAN-XH-SR01-7750全局配置
configure->service
oper-group \
4.3.1.8 IES 10000888配置group-interface的sap关联
ETH-CFM联动
configure service vpls 30000888 customer 3000 create
description \ stp
shutdown exit
sap lag-5:1710.0 create ---选用一个vlan专门传送CFM信息 eth-cfm
mep 1 domain 4 association 5 direction down fault-propagation-enable use-if-tlv ---备用不发送eth-OAM报文,只是传递错误信息给sap点
no shutdown exit exit oper-group \ exit
no shutdown exit exit
configure service ies 10000888 customer 1000 create
interface \
monitor-oper-group \检测CFM通道的状态 address 183.239.184.225/27 mac 0c:a4:02:b0:71:45 –备用侧绑定主用网关mac地址,保证切换后由于客户端的arp表未老化导致不通
sap lag-5:1707.100 create anti-spoof ip
static-host ip 183.239.184.226 create
-37-
城域网与OLT配合采用
VRRP测试方案
no shutdown exit
exit
exit
4.3.2 测试结果 测试编号 测试项目 测试目的 4.3 非共享网关专线业务热备测试 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 RadiusSR/BRAS信信BRAS信信SRUpLACPEth-OAMDownLACP12Eth-OAM测试环境 信信信SWEth-OAMETH-TRUNKLACPOLT ONU信信1信信2 1、在SW接终端分别ping网关和外网(百度) 测试步骤 2、中断链路1,观察业务情况。 3、恢复链路1,观察业务情况 预期结果 测试结果 主用链路1出现故障,业务可以正常切换到备用侧 第一次切换:丢2个包 还原不丢包 -38-
城域网与OLT配合采用
VRRP测试方案
第二次切换:丢2个包 还原不丢包 第三次切换:丢2个包 还原不丢包 第1次 第2次 第3次 ping网关 切换 还原 1 0 1 0 1 1 ping百度 切换 还原 4 3 8 1 4 6 切换前的状态: 主用SR的eth-CFM和sap状态: ========================================================= Eth-Cfm MEP Configuration Information ========================================================= Md-index : 4 Direction : Down Ma-index : 5 Admin : Enabled MepId : 1 CCM-Enable : Enabled IfIndex : 1342177284 PrimaryVid : 1710 Description : (Not Specified) FngState : fngReset ControlMep : False LowestDefectPri : macRemErrXcon HighestDefect : none Defect Flags : None ----主用SR的CFM状态正常 Mac Address : 0c:a4:02:b0:71:45 ControlMep : False CcmLtmPriority : 7 CcmTx : 4467 CcmSequenceErr : 0 Fault Propagation : disabled FacilityFault : n/a MA-CcmInterval : 1 MA-CcmHoldTime : 0ms Eth-1Dm Threshold : 3(sec) MD-Level : 3 Eth-Ais: : Disabled Eth-Tst: : Disabled 备注 -39-
城域网与OLT配合采用
VRRP测试方案
Redundancy: MC-LAG State : n/a CcmLastFailure Frame: None XconCcmFailure Frame: None B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show service sap-using sap lag-4:1710.0 ----检查CMF group的端口状态 =========================================================== Service Access Points Using Port lag-4:1710.0 =========================================================== PortId SvcId Ing. Ing. Egr. Egr. Adm Opr QoS Fltr QoS Fltr ------------------------------------------------------------------------------- lag-4:1710.0 30000888 1 none 1 none Up Up ---主用侧是UP ------------------------------------------------------------------------------- Number of SAPs : 1 ------------------------------------------------------------------------------- B:GDGZ-MS-IPMAN-BRAS01-XY-AL#show router interface \ =========================================================== Interface Table (Router: Base) =========================================================== Interface-Name Adm Opr(v4/v6) Mode Port/SapId IP-Address PfxState -40-
城域网与OLT配合采用
VRRP测试方案
------------------------------------------------------------------------------- GZ-Customer1 Up Up/Down IES lag-4:1707.0 183.239.184.225/27 n/a ------------------------------------------------------------------------------- Interfaces : 1 =========================================================== 备用SR的eth-CFM和sap状态: A:GDGZ-MS-IPMAN-SR01-XH-AL> show eth-cfm mep 1 domain 4 association 5 =========================================================== Eth-Cfm MEP Configuration Information =========================================================== Md-index : 4 Direction : Down Ma-index : 5 Admin : Enabled MepId : 1 CCM-Enable : Disabled IfIndex : 1342177285 PrimaryVid : 1710 Description : (Not Specified) FngState : fngDefectReported ControlMep : False LowestDefectPri : macRemErrXcon HighestDefect : defXconCCM Defect Flags : bDefXconCCM ----故意设置主备用的CFM参数不匹配,是的备用SR接收不符合规则的eth-OAM报文 Mac Address : 00:21:05:40:30:2c ControlMep : False CcmLtmPriority : 7 CcmTx : 0 CcmSequenceErr : 0 Fault Propagation : useIfStatusTLV FacilityFault : n/a MA-CcmInterval : 1 MA-CcmHoldTime : 0ms Eth-1Dm Threshold : 3(sec) MD-Level : 3 Eth-Ais: : Disabled Eth-Tst: : Disabled -41-
城域网与OLT配合采用
VRRP测试方案
Redundancy: MC-LAG State : n/a CcmLastFailure Frame: None XconCcmFailure Frame: Dest MacAddr: 01:80:C2:00:00:33 Source MacAddr: 0C:A4:02:B0:71:45 EtherType: 8021Q (0x8100) PCP/CFI/VID: 7/0/1710 (0xe6ae) EtherType: CFM (0x8902) MD-Level/Version: 3/0 (0x60) OpCode: CCM (0x01) Flags: 1sec (0x04) First TLV Offset: 70 Sequence Number: 5528 MepId: 1 MdNameFmt: string (0x04) MdNameLen: 8 MdName: XYBRAS01 MaNameFmt: string (0x02) MaNameLen: 8 MaName: XHBRAS01 TxFCf: 0 RxFCb: 0 TxFCb: 0 Reserved: 0 TLV: End (0x00) A:GDGZ-MS-IPMAN-SR01-XH-AL> show service sap-using sap lag-5:1710.0 =========================================================== Service Access Points Using Port lag-5:1710.0 =========================================================== PortId SvcId Ing. Ing. Egr. Egr. Adm Opr QoS Fltr QoS Fltr ------------------------------------------------------------------------------- lag-5:1710.0 30000888 1 none 1 none Up Down—由于接收到主用SR发过来的错误的eth-OAM报文,因此,sap点状态为down ------------------------------------------------------------------------------- -42-
城域网与OLT配合采用
VRRP测试方案
Number of SAPs : 1 A:GDGZ-MS-IPMAN-SR01-XH-AL>config>service>ies>if# show router interface \ ---备用侧的interface是down的 =========================================================== Interface Table (Router: Base) =========================================================== Interface-Name Adm Opr(v4/v6) Mode Port/SapId IP-Address PfxState ------------------------------------------------------------------------------- GZ-Customer1 Up Down/Down IES lag-5:1707.0 183.239.184.225/27 n/a ------------------------------------------------------------------------------- Interfaces : 1 =========================================================== 切换后的状态: 主用SR的eth-CFM和sap状态: B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show eth-cfm mep 1 domain 4 association 5 ========================================================= Eth-Cfm MEP Configuration Information ========================================================= Md-index : 4 Direction : Down Ma-index : 5 Admin : Enabled MepId : 1 CCM-Enable : Enabled IfIndex : 1342177284 PrimaryVid : 1710 Description : (Not Specified) FngState : fngReset ControlMep : False -43-
城域网与OLT配合采用
VRRP测试方案
LowestDefectPri : macRemErrXcon HighestDefect : none Defect Flags : None ---不管链路是否中断,由于备用不发OAM报文,因此永远是UP的 Mac Address : 0c:a4:02:b0:71:45 ControlMep : False CcmLtmPriority : 7 CcmTx : 6340 CcmSequenceErr : 0 Fault Propagation : disabled FacilityFault : n/a MA-CcmInterval : 1 MA-CcmHoldTime : 0ms Eth-1Dm Threshold : 3(sec) MD-Level : 3 Eth-Ais: : Disabled Eth-Tst: : Disabled Redundancy: MC-LAG State : n/a CcmLastFailure Frame: None XconCcmFailure Frame: None ========================================================= B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show service sap-using sap lag-4:1710.0 =========================================================== Service Access Points Using Port lag-4:1707.100 =========================================================== PortId SvcId Ing. Ing. Egr. Egr. Adm Opr QoS Fltr QoS Fltr ------------------------------------------------------------------------------- lag-4:1707.100 10000888 1 none 1 none Up Down—由于链路中断,主用状态变为Down -44-
城域网与OLT配合采用
VRRP测试方案
------------------------------------------------------------------------------- Number of SAPs : 1 B:GDGZ-MS-IPMAN-BRAS01-XY-AL# show router interface \ ---切换后interface接口down =========================================================== Interface Table (Router: Base) =========================================================== Interface-Name Adm Opr(v4/v6) Mode Port/SapId IP-Address PfxState ------------------------------------------------------------------------------- GZ-Customer1 Up Down/Down IES lag-4:1707.0 183.239.184.225/27 n/a ------------------------------------------------------------------------------- Interfaces : 1 =========================================================== 备用SR的eth-CFM和sap状态: A:GDGZ-MS-IPMAN-SR01-XH-AL# show eth-cfm mep 1 domain 4 association 5 =========================================================== Eth-Cfm MEP Configuration Information =========================================================== Md-index : 4 Direction : Down Ma-index : 5 Admin : Enabled MepId : 1 CCM-Enable : Disabled IfIndex : 1342177285 PrimaryVid : 1707 Description : (Not Specified) FngState : fngReset ControlMep : False -45-
城域网与OLT配合采用
VRRP测试方案
LowestDefectPri : macRemErrXcon HighestDefect : none Defect Flags : None -----CFM状态变为正常 Mac Address : 00:21:05:40:30:2c ControlMep : False CcmLtmPriority : 7 CcmTx : 0 CcmSequenceErr : 0 Fault Propagation : useIfStatusTLV FacilityFault : n/a MA-CcmInterval : 1 MA-CcmHoldTime : 0ms Eth-1Dm Threshold : 3(sec) MD-Level : 3 Eth-Ais: : Disabled Eth-Tst: : Disabled Redundancy: MC-LAG State : n/a CcmLastFailure Frame: None XconCcmFailure Frame: None =========================================================== A:GDGZ-MS-IPMAN-SR01-XH-AL> show service sap-using sap lag-5:1710.0 =========================================================== Service Access Points Using Port lag-5:1710.0 =========================================================== PortId SvcId Ing. Ing. Egr. Egr. Adm Opr QoS Fltr QoS Fltr ------------------------------------------------------------------------------- lag-5:1710.0 30000888 1 none 1 none Up Up—主用侧的链路中断后,备用侧接收不到主用发送过来的不符合规则eth-CFM报文,因为状态变为UP -46-
城域网与OLT配合采用
VRRP测试方案
------------------------------------------------------------------------------- Number of SAPs : 1 A:GDGZ-MS-IPMAN-SR01-XH-AL# show router interface \ ---切换为主用后interface端口状态为UP =========================================================== Interface Table (Router: Base) ===========================================================Interface-Name Adm Opr(v4/v6) Mode Port/SapId IP-Address PfxState ------------------------------------------------------------------------------- GZ-Customer1 Up Up/Down IES lag-5:1707.0 183.239.184.225/27 n/a ------------------------------------------------------------------------------- Interfaces : 1
4.4 城域网路由组织优化
4.4.1 设备配置
现网配置路由发布设置:
主备SR均设置发布用户明细路由,备用侧用户端口down,如下图:
-47-
城域网与OLT配合采用
VRRP测试方案
存在问题:
SR和CR都存在大量的32位用户路由,随着业务量的发展,路由表将急剧扩张。降低设备性能
路由优化方案 SR路由接收优化:
SR只接收CR发布的BGP默认路由,过滤其他明细路由(金万邦等用户需要接收移动明细路由,对应的SR可以接收CR的聚合路由) SR路由发布优化:
? 启用SRRP热备架构后,可以通过SRRP策略控制主备SR的路由发布 ? 现网一般以25位网段确定主备关系,主用SR发布25位exact路由,备用SR发布srrp-master路由,不发布25位路由 如下图:
-48-
城域网与OLT配合采用
VRRP测试方案
4.4.1.1 GDGZ-MS-IPMAN-XY-BRAS01-7750 路由发布策略
B:GDGZ-MS-IPMAN-BRAS01-XY-AL # configure router policy-options
prefix-list \
prefix 120.197.23.48/30 exact prefix 120.197.23.72/30 exact
prefix 183.239.184.128/26 exact prefix 183.239.184.224/27 exact exit
prefix-list \ prefix 0.0.0.0/0 exact exit
prefix-list \ prefix 183.239.180.128/26 longer----备份网段发布32位明细路由
exit
prefix-list \ prefix 0.0.0.0/0 exact exit
policy-statement \ entry 10 from
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