华为ISIS协议实验手册.pdf-资料库

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... AR150-S&AR160-S&AR200-S&AR1200-S&AR2200-S&AR3200-S 产品文档产品版本：V200R005C20 文档版本：03 日期：2014-07-25 反馈文档的问题或需求，请联系我们。版权所有 © 华为技术有限公司 2014。保留一切权利。配置举例目录 7.7.8.7配置举例 7.7.8.7.1配置IS-IS基本功能示例 7.7.8.7.2配置IS-IS的路由聚合示例 7.7.8.7.3配置IS-IS的DIS选择示例 7.7.8.7.4配置IS-IS和BGP交互示例 7.7.8.7.5配置IS-IS快速收敛示例 7.7.8.7.6配置IS-IS Auto FRR(IP保护IP)示例 7.7.8.7.7配置IS-IS Auto FRR(TE保护IP)示例 7.7.8.7.8配置IS-IS与静态BFD联动示例 7.7.8.7.9配置IS-IS与动态BFD联动示例 7.7.8.7 配置举例介绍IS-IS配置举例。配置示例中包括组网需求、配置思路、配置步骤等。配置IS-IS基本功能示例配置IS-IS的路由聚合示例配置IS-IS的DIS选择示例配置IS-IS和BGP交互示例配置IS-IS快速收敛示例配置IS-IS Auto FRR(IP保护IP)示例配置IS-IS Auto FRR(TE保护IP)示例配置IS-IS与静态BFD联动示例配置IS-IS与动态BFD联动示例父主题： IS-IS（IPv4）配置第1页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... 7.7.8.7.1 配置IS-IS基本功能示例组网需求如图1所示，现网中有4台路由器。用户希望在这4台路由器实现网络互联，并且因为RouterA和RouterB性能相对较低，所以还要使这两台路由器处理相对较少的数据信息。图1 配置IS-IS基本功能组网图配置思路采用如下的思路配置ISIS的基本功能： 1. 在各路由器上配置IS-IS基本功能，实现网络互联。其中，配置RouterA和RouterB为Level-1路由器，可以使这两台路由器维护相对少量的数据信息。操作步骤 1. 配置各路由器接口的IP地址 #配置RouterA。 [RouterA] interface gigabitethernet 1/0/0 [RouterA-GigabitEthernet1/0/0] ip address 10.1.1.2 24 [RouterA-GigabitEthernet1/0/0] quit RouterB、RouterC和RouterD的配置与RouterA一致（略） 2. 配置IS-IS基本功能 #配置RouterA。 [RouterA] isis 1 [RouterA-isis-1] is-level level-1 [RouterA-isis-1] network-entity 10.0000.0000.0001.00 [RouterA-isis-1] quit [RouterA] interface gigabitethernet 1/0/0 [RouterA-GigabitEthernet1/0/0] isis enable 1 [RouterA-GigabitEthernet1/0/0] quit #配置RouterB。 [RouterB] isis 1 [RouterB-isis-1] is-level level-1 [RouterB-isis-1] network-entity 10.0000.0000.0002.00 [RouterB-isis-1] quit [RouterB] interface gigabitethernet 1/0/0 [RouterB-GigabitEthernet1/0/0] isis enable 1 [RouterB-GigabitEthernet1/0/0] quit #配置RouterC。 [RouterC] isis 1 [RouterC-isis-1] network-entity 10.0000.0000.0003.00 第2页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... [RouterC-isis-1] quit [RouterC] interface gigabitethernet 1/0/0 [RouterC-GigabitEthernet1/0/0] isis enable 1 [RouterC-GigabitEthernet1/0/0] quit [RouterC] interface gigabitethernet 2/0/0 [RouterC-GigabitEthernet2/0/0] isis enable 1 [RouterC-GigabitEthernet2/0/0] quit [RouterC] interface gigabitethernet 3/0/0 [RouterC-GigabitEthernet3/0/0] isis enable 1 [RouterC-GigabitEthernet3/0/0] quit #配置RouterD。 [RouterD] isis 1 [RouterD-isis-1] is-level level-2 [RouterD-isis-1] network-entity 20.0000.0000.0004.00 [RouterD-isis-1] quit [RouterD] interface gigabitethernet 2/0/0 [RouterD-GigabitEthernet2/0/0] isis enable 1 [RouterD-GigabitEthernet2/0/0] quit [RouterD] interface gigabitethernet 1/0/0 [RouterD-GigabitEthernet1/0/0] isis enable 1 [RouterD-GigabitEthernet1/0/0] quit 3. 验证配置结果 #显示各Router的IS-ISLSDB信息，查看LSDB是否同步。 [RouterA] display isis lsdb Database information for ISIS(1) -------------------------------- Level-1 Link State Database LSPID Seq Num Checksum Holdtime Length ATT/P/OL ------------------------------------------------------------------------- 0000.0000.0001.00-00* 0x00000006 0xbf7d 649 68 0/0/0 0000.0000.0001.01-00* 0x00000002 0xcfbb 1157 55 0/0/0 0000.0000.0002.00-00 0x00000003 0xef4d 545 68 0/0/0 0000.0000.0003.00-00 0x00000008 0x3340 582 111 1/0/0 Total LSP(s): 4 *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload [RouterB] display isis lsdb Database information for ISIS(1) -------------------------------- Level-1 Link State Database LSPID Seq Num Checksum Holdtime Length ATT/P/OL ------------------------------------------------------------------------- 0000.0000.0001.00-00 0x00000006 0xbf7d 642 68 0/0/0 0000.0000.0002.00-00* 0x00000003 0xef4d 538 68 0/0/0 0000.0000.0002.01-00* 0x00000003 0xef4b 538 68 0/0/0 0000.0000.0003.00-00 0x00000008 0x3340 574 111 1/0/0 Total LSP(s): 4 *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload [RouterC] display isis lsdb Database information for ISIS(1) -------------------------------- 第3页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... Level-1 Link State Database LSPID Seq Num Checksum Holdtime Length ATT/P/OL ------------------------------------------------------------------------- 0000.0000.0001.00-00 0x00000006 0xbf7d 638 68 0/0/0 0000.0000.0001.01-00 0x00000002 0xcfbb 871 55 0/0/0 0000.0000.0002.00-00 0x00000003 0xef4d 533 68 0/0/0 0000.0000.0003.00-00* 0x00000008 0x3340 569 111 1/0/0 Total LSP(s): 4 *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload Level-2 Link State Database LSPID Seq Num Checksum Holdtime Length ATT/P/OL ------------------------------------------------------------------------- 0000.0000.0003.00-00* 0x00000008 0x55bb 650 100 0/0/0 0000.0000.0004.00-00 0x00000005 0x6510 629 84 0/0/0 0000.0000.0004.01-00 0x00000001 0xee95 803 55 0/0/0 Total LSP(s): 3 *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload [RouterD] display isis lsdb Database information for ISIS(1) -------------------------------- Level-2 Link State Database LSPID Seq Num Checksum Holdtime Length ATT/P/OL ------------------------------------------------------------------------- 0000.0000.0003.00-00 0x00000008 0x55bb 644 100 0/0/0 0000.0000.0004.00-00* 0x00000005 0x6510 624 84 0/0/0 0000.0000.0004.01-00* 0x00000001 0xee95 700 55 0/0/0 Total LSP(s): 3 *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload #显示各路由器的IS-IS路由信息。Level-1路由器的路由表中应该有一条缺省路由，且下一跳为Level-1-2路由器，Level-2路由器应该有所有Level-1和Level-2的路由。 [RouterA] display isis route Route information for ISIS(1) ----------------------------- ISIS(1) Level-1 Forwarding Table -------------------------------- IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags ------------------------------------------------------------------------- 10.1.1.0/24 10 NULL GE1/0/0 Direct D/-/L/- 10.1.2.0/24 20 NULL GE1/0/0 10.1.1.1 A/-/-/- 192.168.0.0/24 20 NULL GE1/0/0 10.1.1.1 A/-/-/- 0.0.0.0/0 10 NULL GE1/0/0 10.1.1.1 A/-/-/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set [RouterB] display isis route 第4页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... Route information for ISIS(1) ----------------------------- ISIS(1) Level-1 Forwarding Table -------------------------------- IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags ------------------------------------------------------------------------- 10.1.2.0/24 10 NULL GE1/0/0 Direct D/-/L/- 10.1.1.0/24 20 NULL GE1/0/0 10.1.2.1 A/-/-/- 192.168.0.0/24 20 NULL GE1/0/0 10.1.2.1 A/-/-/- 0.0.0.0/0 10 NULL GE1/0/0 10.1.2.1 A/-/-/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set [RouterC] display isis route Route information for ISIS(1) ----------------------------- ISIS(1) Level-1 Forwarding Table -------------------------------- IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags ------------------------------------------------------------------------- 10.1.1.0/24 10 NULL GE1/0/0 Direct D/-/L/- 10.1.2.0/24 10 NULL GE2/0/0 Direct D/-/L/- 192.168.0.0/24 10 NULL GE3/0/0 Direct D/-/L/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set ISIS(1) Level-2 Forwarding Table -------------------------------- IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags ------------------------------------------------------------------------- 10.1.1.0/24 10 NULL GE1/0/0 Direct D/-/L/- 10.1.2.0/24 10 NULL GE2/0/0 Direct D/-/L/- 192.168.0.0/24 10 NULL GE3/0/0 Direct D/-/L/- 172.16.0.0/16 20 NULL GE3/0/0 192.168.0.2 A/-/-/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set [RouterD] display isis route Route information for ISIS(1) ----------------------------- ISIS(1) Level-2 Forwarding Table -------------------------------- IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags -------------------------------------------------------------------------- 192.168.0.0/24 10 NULL GE3/0/0 Direct D/-/L/- 10.1.1.0/24 20 NULL GE3/0/0 192.168.0.1 A/-/-/- 10.1.2.0/24 20 NULL GE3/0/0 192.168.0.1 A/-/-/- 第5页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... 172.16.0.0/16 10 NULL GE2/0/0 Direct D/-/L/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set 配置文件 RouterA的配置文件 # sysname RouterA # isis 1 is-level level-1 network-entity 10.0000.0000.0001.00 # interface GigabitEthernet1/0/0 ip address 10.1.1.2 255.255.255.0 isis enable 1 # return RouterB的配置文件 # sysname RouterB # isis 1 is-level level-1 network-entity 10.0000.0000.0002.00 # interface GigabitEthernet1/0/0 ip address 10.1.2.2 255.255.255.0 isis enable 1 # return RouterC的配置文件 # sysname RouterC # isis 1 network-entity 10.0000.0000.0003.00 # interface GigabitEthernet1/0/0 ip address 10.1.1.1 255.255.255.0 isis enable 1 # interface GigabitEthernet2/0/0 ip address 10.1.2.1 255.255.255.0 isis enable 1 # interface GigabitEthernet3/0/0 ip address 192.168.0.1 255.255.255.0 isis enable 1 # return RouterD的配置文件 # sysname RouterD # isis 1 第6页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... is-level level-2 network-entity 20.0000.0000.0004.00 # interface GigabitEthernet1/0/0 ip address 192.168.0.2 255.255.255.0 isis enable 1 # interface GigabitEthernet2/0/0 ip address 172.16.1.1 255.255.0.0 isis enable 1 # return 父主题：配置举例 7.7.8.7.2 配置IS-IS的路由聚合示例组网需求如图1所示，现网有3台路由器通过IS-IS路由协议实现互联，且RouterA为Level-2路由器，RouterB为Level-1-2路由器，RouterC为Level-1路由器。但是由于IS-IS网络的路由条目过多造成RouterA系统资源负载过重，现要求降低 RouterA的系统资源的消耗。图1 配置IS-IS的路由聚合组网图配置思路采用如下的思路配置IS-IS路由聚合： 1. 配置各路由器的接口IP地址以及IS-IS路由协议，实现网络互联。 2. 在RouterB上配置路由聚合，使得在不影响数据转发的前提下减少RouterA中路由表规模，从而降低 RouterA系统资源的消耗。操作步骤 1. 配置各路由器接口的IP地址 #配置RouterA。 [RouterA] interface gigabitethernet 2/0/0 [RouterA-GigabitEthernet2/0/0] ip address 172.2.1.1 24 [RouterA-GigabitEthernet2/0/0] quit RouterB和RouterC的配置同RouterA（略） 2. 配置IS-IS基本功能 #配置RouterA。第7页共47页 2015/8/27 17:30

HEEX Startpage http://localhost:7890/printtopics.html?time=Thu Aug 27 2... [RouterA] isis 1 [RouterA-isis-1] is-level level-2 [RouterA-isis-1] network-entity 20.0000.0000.0001.00 [RouterA-isis-1] quit [RouterA] interface gigabitethernet 2/0/0 [RouterA-GigabitEthernet2/0/0] isis enable 1 [RouterA-GigabitEthernet2/0/0] quit #配置RouterB。 [RouterB] isis 1 [RouterB-isis-1] network-entity 10.0000.0000.0002.00 [RouterB-isis-1] quit [RouterB] interface gigabitethernet 2/0/0 [RouterB-GigabitEthernet2/0/0] isis enable 1 [RouterB-GigabitEthernet2/0/0] quit [RouterB] interface gigabitethernet 1/0/0 [RouterB-GigabitEthernet1/0/0] isis enable 1 [RouterB-GigabitEthernet1/0/0] quit #配置RouterC。 [RouterC] isis 1 [RouterC-isis-1] is-level level-1 [RouterC-isis-1] network-entity 10.0000.0000.0003.00 [RouterC-isis-1] quit [RouterC] interface gigabitethernet 1/0/0 [RouterC-GigabitEthernet1/0/0] isis enable 1 [RouterC-GigabitEthernet1/0/0] quit GigabitEthernet2/0/0、GigabitEthernet3/0/0和GigabitEthernet4/0/0的配置与GigabitEthernet1/0 /0相同，不再赘述。 3. 查看RouterA的IS-IS路由表信息 [RouterA] display isis route Route information for ISIS(1) ----------------------------- ISIS(1) Level-2 Forwarding Table -------------------------------- IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags ---------------------------------------------------------------------------- 172.1.1.0/24 30 NULL GE2/0/0 172.2.1.2 A/-/L/- 172.1.2.0/24 30 NULL GE2/0/0 172.2.1.2 A/-/L/- 172.1.3.0/24 30 NULL GE2/0/0 172.2.1.2 A/-/L/- 172.1.4.0/24 20 NULL GE2/0/0 172.2.1.2 A/-/L/- 172.2.1.0/24 10 NULL GE2/0/0 Direct D/-/L/- Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut, U-Up/Down Bit Set 4. 在RouterB上配置路由聚合 #在RouterB上将172.1.1.0/24、172.1.2.0/24、172.1.3.0/24、172.1.4.0/24聚合成172.1.0.0/16。 [RouterB] isis 1 [RouterB-isis-1] summary 172.1.0.0 255.255.0.0 level-1-2 [RouterB-isis-1] quit 5. 验证配置结果。 #查看RouterA的路由表，可以看到172.1.1.0/24、172.1.2.0/24、172.1.3.0/24和172.1.4.0/24聚合成了 172.1.0.0/16一条路由。 [RouterA] display isis route Route information for ISIS(1) ----------------------------- ISIS(1) Level-2 Forwarding Table -------------------------------- 第8页共47页 2015/8/27 17:30

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华为ISIS协议实验手册.pdf

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