ISIS实验配置

  |   0浏览

ISIS:主要用于运营商的内部网络ISIS特点:

①IS指路由器②ISIS属于大型内部网关路由协议类似OSPF,多用于运营商,企业网很少使用③使用SPF算法,链路状态类路由协议④ISIS封装数据包是基于OSI模型,OSPF、RIP、以及常见的以太网数据包封装都是基于TCP/IP模型⑤ISIS划分区域是基于路由器。即一个路由器只能属于一个区域⑥ISIS也是两层架构(骨干区域、常规区域)

ISIS路由器的种类:

①Level 1 路由器:仅收发L1的isis报文②Level 2 路由器:仅收发L2的isis报文③Level 1 2 路由器:可以收发L1和L2的isis报文

骨干区域

连续一片Level 2路由器(包含L 1 2)的集合

注意:

①默认情况下所有运行ISIS的路由器都是Level 1 2路由器②L 1 2路由器类型OSPF中的ABRL2路由器类似OSPF中骨干区域路由器L1路由器类似OSPF中常规区域路由器

ISIS实验配置

配置各个路由器的IP地址

R1——设置IP地址

<Huawei>system-view     //进入系统视图[Huawei]undo info-center enable     //关闭信息告警提示[Huawei]sysname R1     // 改名[R1]interface g0/0/0     //进入接口[R1-GigabitEthernet0/0/0]ip address 12.1.1.1 24     //设置IP地址 [R1-GigabitEthernet0/0/0]quit     //退出 [R1]interface LoopBack 0     //进入环回接口 [R1-LoopBack0]ip address 1.1.1.1 24     //设置IP地址 [R1-LoopBack0]quit     //退出 [R1]interface LoopBack 8     //进入环回接口 [R1-LoopBack8]ip address 8.8.8.8 24     //设置IP地址 [R1-LoopBack8]quit     //退出 [R1]

R2——设置IP地址

<Huawei>system-view     //进入系统视图 [Huawei]undo info-center enable      //关闭信息告警[Huawei]sysname R2     //改名[R2]interfac g0/0/0     //进入接口[R2-GigabitEthernet0/0/0]ip address 12.1.1.2 24     //设置IP地址[R2-GigabitEthernet0/0/0]quit     // 退出[R2]interface LoopBack 0     // 进入环回接口[R2-LoopBack0]ip address 2.2.2.2 24     //设置Ip地址[R2-LoopBack0]quit     // 退出[R2]interface g0/0/1     // 进入接口[R2-GigabitEthernet0/0/1]ip address 23.1.1.2 24     // 设置IP地址[R2-GigabitEthernet0/0/1]quit     // 退出[R2]

R3——设置IP地址

<Huawei>system-view     //进入系统视图 [Huawei]undo info-center enable     //  关闭信息告警提示[Huawei]sysname R3     // 改名[R3]interface g0/0/0     //进入接口 [R3-GigabitEthernet0/0/0]ip address 23.1.1.3 24     // 设置IP地址[R3-GigabitEthernet0/0/0]quit     // 退出[R3]interface LoopBack 0     // 进入环回接口[R3-LoopBack0]ip address 3.3.3.3 24     // 设置IP地址[R3-LoopBack0]quit     // 退出[R3]interface g0/0/1     // 进入接口[R3-GigabitEthernet0/0/1]ip address 34.1.1.3 24     // 设置IP地址[R3-GigabitEthernet0/0/1]quit     // 退出[R3]

R4——设置IP地址

<Huawei>system-view     //进入系统视图 [Huawei]undo info-center enable     // 关闭信息告警提示[Huawei]sysname R4     // 改名[R4]interface g0/0/0     // 进入接口[R4-GigabitEthernet0/0/0]ip address 34.1.1.4 24     // 设置IP地址[R4-GigabitEthernet0/0/0]quit     // 退出[R4]interface LoopBack 0     // 进入环回接口[R4-LoopBack0]ip address 4.4.4.4 24     // 设置IP地址[R4-LoopBack0]quit     // 退出[R4]interface g0/0/1     // 进入接口[R4-GigabitEthernet0/0/1]ip address 45.1.1.4 24     // 设置IP地址[R4-GigabitEthernet0/0/1]quit     // 退出[R4]

R5——设置IP地址

<Huawei>system-view      //进入系统视图 [Huawei]undo info-center enable     // 关闭信息告警提示[Huawei]sysname R5     // 改名[R5]interface g0/0/0     // 进入接口[R5-GigabitEthernet0/0/0]ip address 45.1.1.5 24     //设置IP地址 [R5-GigabitEthernet0/0/0]quit     // 退出[R5]interface LoopBack 0     // 进入环回接口[R5-LoopBack0]ip address 5.5.5.5 24     // 设置IP地址[R5-LoopBack0]quit     // 退出[R5]

配置路由器所在ISIS系统中所在区域和系统ID

配置网络实体标识,类似OSPF中的Router-ID,标识该中间系统(路由器)的身份信息。其中49.0002表示路由器所在的区域0000.0000.1111表示系统ID即Router-ID.00固定格式

R1——设置ISIS的系统ID

[R1]isis     // 进入ISIS[R1-isis-1]network-entity 49.0002.0000.0000.1111.00     //设置路由器所在区域和路由器ID[R1-isis-1]quit     //退出 [R1]

R2——设置ISIS的系统ID

[R2]isis     //进入ISIS   [R2-isis-1]network-entity 49.0002.0000.0000.2222.00     //设置路由器所在区域和路由器ID[R2-isis-1]quit     //退出[R2]

R3——设置ISIS的系统ID

[R3]isis     //进入ISIS   [R3-isis-1]network-entity 49.0001.0000.0000.3333.00     //设置路由器所在区域和路由器ID [R3-isis-1]quit     //退出 [R3]

R4——设置ISIS的系统ID

[R4]isis     //进入ISIS   [R4-isis-1]network-entity 49.0003.0000.0000.4444.00     //设置路由器所在区域和路由器ID [R4-isis-1]quit     //退出 [R4]

R5——设置ISIS的系统ID

[R5]isis     //进入ISIS   [R5-isis-1]network-entity 49.0003.0000.0000.5555.00     //设置路由器所在区域和路由器ID [R5-isis-1]quit     //退出 [R5]

宣告ISIS区域路由器中的网段

R1——宣告直连、环回网段和RIP区域

[R1]interface g0/0/0     //进入接口[R1-GigabitEthernet0/0/0]isis enable 1     //宣告网段[R1-GigabitEthernet0/0/0]quit     //退出[R1]interface LoopBack 0     //进入环回接口   [R1-LoopBack0]isis enable 1     //宣告网段[R1-LoopBack0]quit     //退出[R1]rip     //进入RIP[R1-rip-1]version 2     //协议2[R1-rip-1]undo summary     //关闭自动汇总[R1-rip-1]network 8.0.0.0     //宣告网段[R1-rip-1]quit     //退出[R1]

R2——宣告直连、环回网段

[R2]interface g0/0/0     //进入接口[R2-GigabitEthernet0/0/0]isis enable 1     //宣告网段[R2-GigabitEthernet0/0/0]quit     //退出[R2]interface g0/0/1     //进入接口[R2-GigabitEthernet0/0/1]isis enable 1     //宣告网段[R2-GigabitEthernet0/0/1]quit     //退出[R2]interface LoopBack 0     //进入环回接口[R2-LoopBack0]isis enable 1     //宣告网段[R2-LoopBack0]quit     //退出[R2]

R3——宣告直连、环回网段

[R3]interface g0/0/0     //进入接口[R3-GigabitEthernet0/0/0]isis enable 1     //宣告网段[R3-GigabitEthernet0/0/0]quit     //退出[R3]interface g0/0/1     //进入接口[R3-GigabitEthernet0/0/1]isis  enable 1     //宣告网段[R3-GigabitEthernet0/0/1]quit     //退出[R3]interface LoopBack 0     //进入换回接口[R3-LoopBack0]isis enable 1     //宣告网段[R3-LoopBack0]quit     //退出[R3]

R4——宣告直连、环回网段

[R4]interface g0/0/0     //进入接口[R4-GigabitEthernet0/0/0]isis enable 1     //宣告网段[R4-GigabitEthernet0/0/0]quit     //退出[R4]interface g0/0/1     //进入接口[R4-GigabitEthernet0/0/1]isis enable 1     //宣告网段[R4-GigabitEthernet0/0/1]quit     //退出[R4]interface LoopBack 0     //进入环回接口[R4-LoopBack0]isis enable 1     //宣告网段[R4-LoopBack0]quit     //退出[R4]

R5——宣告直连、环回网段

[R5]interface g0/0/0     //进入接口[R5-GigabitEthernet0/0/0]isis enable 1     //宣告网段[R5-GigabitEthernet0/0/0]quit     //退出[R5]interface LoopBack 0     //进入环回接口   [R5-LoopBack0]isis enable 1     //宣告网段[R5-LoopBack0]quit     //退出[R5]

查看路由器是否学习到所有的IP地址

R3——查看路由表

[R3]dis ip routing-table      //查看路由表Route Flags: R - relay, D - download to fib------------------------------------------------------------------------------Routing Tables: Public         Destinations : 19       Routes : 19       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface        1.1.1.0/24  ISIS-L2 15   20          D   23.1.1.2        GigabitEthernet0/0/0        2.2.2.0/24  ISIS-L2 15   10          D   23.1.1.2        GigabitEthernet0/0/0        3.3.3.0/24  Direct  0    0           D   3.3.3.3         LoopBack0        3.3.3.3/32  Direct  0    0           D   127.0.0.1       LoopBack0      3.3.3.255/32  Direct  0    0           D   127.0.0.1       LoopBack0        4.4.4.0/24  ISIS-L2 15   10          D   34.1.1.4        GigabitEthernet0/0/1        5.5.5.0/24  ISIS-L2 15   20          D   34.1.1.4        GigabitEthernet0/0/1       12.1.1.0/24  ISIS-L2 15   20          D   23.1.1.2        GigabitEthernet0/0/0       23.1.1.0/24  Direct  0    0           D   23.1.1.3        GigabitEthernet0/0/0       23.1.1.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0     23.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0       34.1.1.0/24  Direct  0    0           D   34.1.1.3        GigabitEthernet0/0/1       34.1.1.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1     34.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1       45.1.1.0/24  ISIS-L2 15   20          D   34.1.1.4        GigabitEthernet0/0/1      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[R3]//除了RIP的路由,其他路由都学到了

修改路由器的Level类型

默认情况下,骨干区域的路由不会发送到L1路由器(常规区域),且L1路由器会自动形成指向L12路由器的缺省路由(这种特性类似OSPF中的totally stub)

R1——将类型修改为Level 1

[R1]isis     //进入ISIS   [R1-isis-1]is-level level-1     //修改路由器的类型为L1[R1-isis-1]quit     //退出[R1]
R1——查看路由表
[R1]dis ip routing-table     //查看路由表    Route Flags: R - relay, D - download to fib------------------------------------------------------------------------------Routing Tables: Public         Destinations : 16       Routes : 16       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface        0.0.0.0/0   ISIS-L1 15   10          D   12.1.1.2        GigabitEthernet     //默认增加一条缺省路由0/0/0        1.1.1.0/24  Direct  0    0           D   1.1.1.1         LoopBack0        1.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0      1.1.1.255/32  Direct  0    0           D   127.0.0.1       LoopBack0        2.2.2.0/24  ISIS-L1 15   10          D   12.1.1.2        GigabitEthernet0/0/0        8.8.8.0/24  Direct  0    0           D   8.8.8.8         LoopBack8        8.8.8.8/32  Direct  0    0           D   127.0.0.1       LoopBack8      8.8.8.255/32  Direct  0    0           D   127.0.0.1       LoopBack8       12.1.1.0/24  Direct  0    0           D   12.1.1.1        GigabitEthernet0/0/0       12.1.1.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0     12.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0       23.1.1.0/24  ISIS-L1 15   20          D   12.1.1.2        GigabitEthernet0/0/0      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[R1]

R3——将类型修改为Level 2

[R3]isis     //进入ISIS   [R3-isis-1]is-level level-2          // 修改路由器的类型为L2[R3-isis-1]quit     // 退出[R3]

R5——将类型修改为Level 1

[R5]isis     // 进入ISIS  [R5-isis-1]is-level level-1     // 修改路由器的类型为L1[R5-isis-1]quit     // 退出[R5]

R5——查看路由表

[R5]dis ip routing-table     // 查看路由表Route Flags: R - relay, D - download to fib------------------------------------------------------------------------------Routing Tables: Public         Destinations : 13       Routes : 13       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface        0.0.0.0/0   ISIS-L1 15   10          D   45.1.1.4        GigabitEthernet          // 默认增加一条缺省路由0/0/0        4.4.4.0/24  ISIS-L1 15   10          D   45.1.1.4        GigabitEthernet0/0/0        5.5.5.0/24  Direct  0    0           D   5.5.5.5         LoopBack0        5.5.5.5/32  Direct  0    0           D   127.0.0.1       LoopBack0      5.5.5.255/32  Direct  0    0           D   127.0.0.1       LoopBack0       34.1.1.0/24  ISIS-L1 15   20          D   45.1.1.4        GigabitEthernet0/0/0       45.1.1.0/24  Direct  0    0           D   45.1.1.5        GigabitEthernet0/0/0       45.1.1.5/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0     45.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[R5]

查看ISIS的简要信息

R1——查看ISIS简要信息

[R1]dis isis brief     //查看ISIS简要信息                     ISIS Protocol Information for ISIS(1)                     -------------------------------------SystemId: 0000.0000.1111      System Level: L1     //类型为L1    Area-Authentication-mode: NULLDomain-Authentication-mode: NULLIpv6 is not enabledISIS is in invalid restart statusISIS is in protocol hot standby state: Real-Time BackupInterface: 12.1.1.1(GE0/0/0)Cost: L1 10        L2 10                Ipv6 Cost: L1 10   L2 10   State: IPV4 Up                          IPV6 DownType: BROADCAST                         MTU: 1497      Priority: L1 64   L2 64   Timers:     Csnp: L1 10    L2 10    ,Retransmit: L12 5   , Hello: L1 10 L2 10  ,Hello Multiplier: L1 3    L2 3     , LSP-Throttle Timer: L12 50  Interface: 1.1.1.1(Loop0)Cost: L1 0         L2 0                 Ipv6 Cost: L1 0    L2 0    State: IPV4 Up                          IPV6 DownType: P2P                               MTU: 1500      Priority: L1 64   L2  64   Timers:     Csnp: L12 10  , Retransmit: L12 5   , Hello: 10  ,Hello Multiplier: 3            , LSP-Throttle Timer: L12 50  [R1]

R3——查看ISIS简要信息

[R3]dis isis brief     //查看ISIS简要信息                      ISIS Protocol Information for ISIS(1)                     -------------------------------------SystemId: 0000.0000.3333      System Level: L2     //类型为L2    Area-Authentication-mode: NULLDomain-Authentication-mode: NULLIpv6 is not enabledISIS is in invalid restart statusISIS is in protocol hot standby state: Real-Time BackupInterface: 23.1.1.3(GE0/0/0)Cost: L1 10        L2 10                Ipv6 Cost: L1 10   L2 10   State: IPV4 Up                          IPV6 DownType: BROADCAST                         MTU: 1497      Priority: L1 64   L2 64   Timers:     Csnp: L1 10    L2 10    ,Retransmit: L12 5   , Hello: L1 10 L2 10  ,Hello Multiplier: L1 3    L2 3     , LSP-Throttle Timer: L12 50  Interface: 34.1.1.3(GE0/0/1)Cost: L1 10        L2 10                Ipv6 Cost: L1 10   L2 10   State: IPV4 Up                          IPV6 DownType: BROADCAST                         MTU: 1497      Priority: L1 64   L2 64   Timers:     Csnp: L1 10    L2 10    ,Retransmit: L12 5   , Hello: L1 10 L2 10  ,Hello Multiplier: L1 3    L2 3     , LSP-Throttle Timer: L12 50  Interface: 3.3.3.3(Loop0)Cost: L1 0         L2 0                 Ipv6 Cost: L1 0    L2 0    State: IPV4 Up                          IPV6 DownType: P2P                               MTU: 1500      Priority: L1 64   L2  64   Timers:     Csnp: L12 10  , Retransmit: L12 5   , Hello: 10  ,Hello Multiplier: 3            , LSP-Throttle Timer: L12 50  [R3]

R5——查看ISIS 简要信息

[R5]dis isis brief     //查看ISIS简要信息                     ISIS Protocol Information for ISIS(1)                     -------------------------------------SystemId: 0000.0000.5555      System Level: L1     //类型为L1    Area-Authentication-mode: NULLDomain-Authentication-mode: NULLIpv6 is not enabledISIS is in invalid restart statusISIS is in protocol hot standby state: Real-Time BackupInterface: 45.1.1.5(GE0/0/0)Cost: L1 10        L2 10                Ipv6 Cost: L1 10   L2 10   State: IPV4 Up                          IPV6 DownType: BROADCAST                         MTU: 1497      Priority: L1 64   L2 64   Timers:     Csnp: L1 10    L2 10    ,Retransmit: L12 5   , Hello: L1 10 L2 10  ,Hello Multiplier: L1 3    L2 3     , LSP-Throttle Timer: L12 50  Interface: 5.5.5.5(Loop0)Cost: L1 0         L2 0                 Ipv6 Cost: L1 0    L2 0    State: IPV4 Up                          IPV6 DownType: P2P                               MTU: 1500      Priority: L1 64   L2  64   Timers:     Csnp: L12 10  , Retransmit: L12 5   , Hello: 10  ,Hello Multiplier: 3            , LSP-Throttle Timer: L12 50  [R5]

修改ISIS接口发送报文类型Level

R2——修改接口发送报文类型

[R2]interface g0/0/0     //进入接口[R2-GigabitEthernet0/0/0]isis circuit-level level-1     //设置该接口只发送L1报文      [R2-GigabitEthernet0/0/0]quit     //退出  [R2]interface g0/0/1     //进入接口     [R2-GigabitEthernet0/0/1]isis circuit-level level-2     //设置该接口只发送L2报文  [R2-GigabitEthernet0/0/1]quit     //退出  [R2]
R1——测试是否可以ping通R3
<R1>ping 3.3.3.3     //测试是否可以ping 通R3设备  PING 3.3.3.3: 56  data bytes, press CTRL_C to break    Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=254 time=50 ms    Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=254 time=20 ms    Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=254 time=20 ms    Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=254 time=20 ms    Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=254 time=30 ms     //ping 通  --- 3.3.3.3 ping statistics ---    5 packet(s) transmitted    5 packet(s) received    0.00% packet loss    round-trip min/avg/max = 20/28/50 ms<R1>

R4——修改接口发送报文类型

[R4]interface g0/0/0     //进入接口 [R4-GigabitEthernet0/0/0]isis circuit-level level-2     //设置该接口只发送L2报文  [R4-GigabitEthernet0/0/0]quit     //退出  [R4]interface g0/0/1     //进入接口     [R4-GigabitEthernet0/0/1]isis circuit-level level-1     //设置该接口只发送L1报文  [R4-GigabitEthernet0/0/1]quit     //退出  [R4]
R5——测试是否可以ping通R3
<R5>ping 3.3.3.3     //测试是否可以ping 通R3设备   PING 3.3.3.3: 56  data bytes, press CTRL_C to break    Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=254 time=10 ms    Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=254 time=40 ms    Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=254 time=30 ms    Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=254 time=30 ms    Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=254 time=40 ms     //ping 通   --- 3.3.3.3 ping statistics ---    5 packet(s) transmitted    5 packet(s) received    0.00% packet loss    round-trip min/avg/max = 10/30/40 ms<R5>

查看邻居表

R3——查看邻居表

[R3]dis isis peer     //查看邻居表                              Peer information for ISIS(1)  System Id     Interface          Circuit Id       State HoldTime Type     PRI-------------------------------------------------------------------------------0000.0000.2222  GE0/0/0            0000.0000.3333.01 Up   21s      L2       64 0000.0000.4444  GE0/0/1            0000.0000.4444.01 Up   8s       L2       64 Total Peer(s): 2[R3]

查看拓扑表

R3——查看拓扑表

[R3]dis isis lsdb     //查看拓扑表                           Database information for ISIS(1)                        --------------------------------                          Level-2 Link State DatabaseLSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL-------------------------------------------------------------------------------0000.0000.2222.00-00  0x0000001e   0xed40        1084          114     0/0/0   0000.0000.3333.00-00* 0x0000000e   0x9ec3        1045          113     0/0/0   0000.0000.3333.01-00* 0x00000006   0xf484        1045          55      0/0/0   0000.0000.4444.00-00  0x00000017   0xc492        1153          114     0/0/0   0000.0000.4444.01-00  0x00000005   0xb261        1153          55      0/0/0   0000.0000.5555.00-00  0x0000000a   0x96c7        166           110     0/0/0   Total LSP(s): 6    *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),            ATT-Attached, P-Partition, OL-Overload[R3]

向ISIS引入其他自制系统的路由

R1——ISIS引入RIP

[R1]isis     //进入ISIS       [R1-isis-1]import-route rip 1 level-1     //接level 1指的是以level 1的形式引入[R1-isis-1]quit     //退出    [R1]
R3——查看路由表
[R3]dis ip routing-table     //查看路由表     Route Flags: R - relay, D - download to fib------------------------------------------------------------------------------Routing Tables: Public         Destinations : 20       Routes : 20       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface        1.1.1.0/24  ISIS-L2 15   20          D   23.1.1.2        GigabitEthernet0/0/0        2.2.2.0/24  ISIS-L2 15   10          D   23.1.1.2        GigabitEthernet0/0/0        3.3.3.0/24  Direct  0    0           D   3.3.3.3         LoopBack0        3.3.3.3/32  Direct  0    0           D   127.0.0.1       LoopBack0      3.3.3.255/32  Direct  0    0           D   127.0.0.1       LoopBack0        4.4.4.0/24  ISIS-L2 15   10          D   34.1.1.4        GigabitEthernet0/0/1        5.5.5.0/24  ISIS-L2 15   20          D   34.1.1.4        GigabitEthernet0/0/1        8.8.8.0/24  ISIS-L2 15   84          D   23.1.1.2        GigabitEthernet     //RIP路由信息成功引入0/0/0       12.1.1.0/24  ISIS-L2 15   20          D   23.1.1.2        GigabitEthernet0/0/0       23.1.1.0/24  Direct  0    0           D   23.1.1.3        GigabitEthernet0/0/0       23.1.1.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0     23.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0       34.1.1.0/24  Direct  0    0           D   34.1.1.3        GigabitEthernet0/0/1       34.1.1.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1     34.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1       45.1.1.0/24  ISIS-L2 15   20          D   34.1.1.4        GigabitEthernet0/0/1      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[R3]

原文地址:https://blog.51cto.com/13541307/2507816