链路聚合

3.1  与思科设备对接操作指导

3.1.1  互通性分析

表7 互通性分析

3.1.2  采用静态聚合模式对接案例

1. 组网需求

如图10所示，H3C设备与Cisco设备通过各自的二层以太网接口相互连接。现要求在H3C设备和Cisco设备上分别配置静态链路聚合，实现增加链路带宽、提高链路可靠性的目的。

图10 采用静态聚合模式对接配置组网图

2. 配置步骤

·     配置H3C设备

# 创建三层聚合接口1，并为该接口配置IP地址和子网掩码。

<H3C> system-view

[H3C] interface Route-aggregation 1

[H3C-Route-Aggregation1] ip address 16.1.105.33 24

[H3C-Route-Aggregation1] quit

# 将三层以太网接口GigabitEthernet1/0/1加入三层聚合组1中。

[H3C] interface gigabitethernet 1/0/1

[H3C-GigabitEthernet1/0/1] port link-aggregation group 1

[H3C-GigabitEthernet1/0/1] quit

# 将三层以太网接口GigabitEthernet1/0/2加入三层聚合组1中。

[H3C] interface GigabitEthernet 1/0/2

[H3C-GigabitEthernet1/0/2] port link-aggregation group 1

[H3C-GigabitEthernet1/0/2] quit

·     配置Cisco设备

# 如下配置以Cisco Nexus9000 C9236C为例进行介绍，设备具体信息如下：

Cisco# show version

Cisco Nexus Operating System (NX-OS) Software

TAC support: http://www.cisco.com/tac

Copyright (C) 2002-2017, Cisco and/or its affiliates.

All rights reserved.

The copyrights to certain works contained in this software are

owned by other third parties and used and distributed under their own

licenses, such as open source.  This software is provided "as is," and unless

otherwise stated, there is no warranty, express or implied, including but not

limited to warranties of merchantability and fitness for a particular purpose.

Certain components of this software are licensed under

the GNU General Public License (GPL) version 2.0 or

GNU General Public License (GPL) version 3.0  or the GNU

Lesser General Public License (LGPL) Version 2.1 or

Lesser General Public License (LGPL) Version 2.0.

A copy of each such license is available at

***.***/licenses/gpl-2.0.php and

***.***/licenses/gpl-3.0.html and

***.***/licenses/lgpl-2.1.php and

***.***/licenses/old-licenses/library.txt.

Software

 BIOS: version 07.56

 NXOS: version 7.0(3)I4(6)

 BIOS compile time:  06/08/2016

 NXOS image file is: bootflash:///nxos.7.0.3.I4.6.bin

 NXOS compile time:  3/9/2017 22:00:00 [03/10/2017 07:05:18]

Hardware

 cisco Nexus9000 C9236C chassis

Intel(R) Xeon(R) CPU  @ 1.80GHz with 16400984 kB of memory.

 Processor Board ID FDO20511FC7

Device name: switch

 bootflash:   53298520 kB

Kernel uptime is 17 day(s), 20 hour(s), 9 minute(s), 30 second(s)

Last reset

Reason: Unknown

 System version: 7.0(3)I4(6)

 Service:

plugin

 Core Plugin, Ethernet Plugin

Active Package(s):

# 配置聚合口的IP地址。

Cisco# configure terminal

Cisco(config)# interface channel-group 1

Cisco(config-if)# ip address 16.1.105.34 255.255.255.0

Cisco(config-if)# exit

# 设置接口Ethernet1/3的聚合模式为手动方式。

Cisco(config)# interface Ethernet 1/3

Cisco(config-if)# channel-group 1 mode on

Cisco(config-if)# exit

# 设置接口Ethernet1/5的聚合模式为手动方式。

Cisco(config-if)# interface Ethernet 1/5

Cisco(config-if)# channel-group 1 mode on

Cisco(config-if)# end

3. 验证配置

# 在H3C设备上验证聚合组的详细信息。

[H3C] display link-aggregation verbose

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

        D -- Synchronization, E -- Collecting, F -- Distributing,

        G -- Defaulted, H -- Expired

Aggregate Interface: Route-Aggregation1

Aggregation Mode: Static

Loadsharing Type: Shar

Management VLANs: None

  Port             Status  Priority Oper-Key

  GE1/0/1(R)       S       32768    1        

  GE1/0/2          S       32768    1        

# 在H3C设备上能Ping通对端设备。

[H3C ] ping 16.1.105.34

Ping 16.1.105.34 (16.1.105.34): 56 data bytes, press CTRL_C to break

56 bytes from 16.1.105.34: icmp_seq=0 ttl=255 time=2.537 ms

56 bytes from 16.1.105.34: icmp_seq=1 ttl=255 time=2.000 ms

56 bytes from 16.1.105.34: icmp_seq=2 ttl=255 time=1.935 ms

56 bytes from 16.1.105.34: icmp_seq=3 ttl=255 time=2.044 ms

56 bytes from 16.1.105.34: icmp_seq=4 ttl=255 time=2.143 ms

--- Ping statistics for 16.1.105.34 ---

5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss

round-trip min/avg/max/std-dev = 1.935/2.132/2.537/0.214 ms

3.1.3  采用动态聚合模式对接案例

1. 组网需求

如图11所示，H3C设备与Cisco设备通过各自的二层以太网接口相互连接。现要求在H3C设备和Cisco设备上分别配置动态链路聚合，实现增加链路带宽、提高链路可靠性的目的。

图11 采用动态聚合模式对接配置组网图

2. 配置步骤

·     配置H3C设备

# 创建三层聚合接口1，并为该接口配置IP地址和子网掩码。

<H3C> system-view

[H3C] interface Route-aggregation 1

[H3C-Route-Aggregation1] ip address 16.1.105.33 24

# 配置三层聚合接口1对应的聚合组工作在动态聚合模式下。

[H3C-Route-Aggregation1] link-aggregation mode dynamic

[H3C-Route-Aggregation1] quit

# 将三层以太网接口GigabitEthernet1/0/1加入三层聚合组1中。

[H3C] interface gigabitethernet 1/0/1

[H3C-GigabitEthernet1/0/1] port link-aggregation group 1

[H3C-GigabitEthernet1/0/1] quit

# 将三层以太网接口GigabitEthernet1/0/2加入三层聚合组1中。

[H3C] interface gigabitethernet 1/0/2

[H3C-GigabitEthernet1/0/2] port link-aggregation group 1

[H3C-GigabitEthernet1/0/2] quit

·     配置Cisco设备

# 如下配置以Cisco Nexus9000 C9236C为例进行介绍，设备具体信息如下：

Cisco# show version

Cisco Nexus Operating System (NX-OS) Software

TAC support: http://www.cisco.com/tac

Copyright (C) 2002-2017, Cisco and/or its affiliates.

All rights reserved.

The copyrights to certain works contained in this software are

owned by other third parties and used and distributed under their own

licenses, such as open source.  This software is provided "as is," and unless

otherwise stated, there is no warranty, express or implied, including but not

limited to warranties of merchantability and fitness for a particular purpose.

Certain components of this software are licensed under

the GNU General Public License (GPL) version 2.0 or

GNU General Public License (GPL) version 3.0  or the GNU

Lesser General Public License (LGPL) Version 2.1 or

Lesser General Public License (LGPL) Version 2.0.

A copy of each such license is available at

***.***/licenses/gpl-2.0.php and

***.***/licenses/gpl-3.0.html and

***.***/licenses/lgpl-2.1.php and

***.***/licenses/old-licenses/library.txt.

Software

 BIOS: version 07.56

 NXOS: version 7.0(3)I4(6)

 BIOS compile time:  06/08/2016

 NXOS image file is: bootflash:///nxos.7.0.3.I4.6.bin

 NXOS compile time:  3/9/2017 22:00:00 [03/10/2017 07:05:18]

Hardware

 cisco Nexus9000 C9236C chassis

Intel(R) Xeon(R) CPU  @ 1.80GHz with 16400984 kB of memory.

 Processor Board ID FDO20511FC7

Device name: switch

 bootflash:   53298520 kB

Kernel uptime is 17 day(s), 20 hour(s), 9 minute(s), 30 second(s)

Last reset

Reason: Unknown

 System version: 7.0(3)I4(6)

 Service:

plugin

 Core Plugin, Ethernet Plugin

Active Package(s):

# 启动LACP。

Cisco# configure terminal

Cisco(config)# feature lacp

# 设置聚合接口的IP地址。

Cisco(config)# interface channel-group 1

Cisco(config-if)# ip address 16.1.105.34 255.255.255.0

Cisco(config-if)# exit

# 将Ethernet1/3接口设置为LACP的active模式。

Cisco(config)# interface Ethernet 1/3

Cisco(config-if)# channel-group 1 mode active

Cisco(config-if)# exit

# 将Ethernet1/5接口设置为LACP的active模式。

Cisco(config-if)# interface Ethernet 1/5

Cisco(config-if)# channel-group 1 mode active

Cisco(config-if)# end

3. 验证配置

# 在H3C设备上验证聚合组的详细信息。

[H3C] display link-aggregation verbose

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

        D -- Synchronization, E -- Collecting, F -- Distributing,

        G -- Defaulted, H -- Expired

Aggregate Interface: Route-Aggregation1

Aggregation Mode: Dynamic

Loadsharing Type: Shar

Management VLANs: None

System ID: 0x8000, 1cab-3496-09f6

Local:

  Port               Status   Priority Index    Oper-Key               Flag

  GE1/0/1(R)          S        32768    1        1                    {ACDEF}

  GE1/0/2             S        32768    2        1                    {ACDEF}

Remote:

  Actor            Priority  Index    Oper-Key    SystemID               Flag  

   GE1/0/1         32768    265      32768    0x8000, 2c33-113a-eaef {ACDEF}

   GE1/0/2         32768    273      32768    0x8000, 2c33-113a-eaef {ACDEF}

# 在H3C设备上能Ping通对端设备。

[H3C] ping 16.1.105.34

Ping 16.1.105.34 (16.1.105.34): 56 data bytes, press CTRL_C to break

Request time out

56 bytes from 16.1.105.34: icmp_seq=1 ttl=255 time=2.331 ms

56 bytes from 16.1.105.34: icmp_seq=2 ttl=255 time=2.063 ms

56 bytes from 16.1.105.34: icmp_seq=3 ttl=255 time=2.202 ms

56 bytes from 16.1.105.34: icmp_seq=4 ttl=255 time=2.219 ms

--- Ping statistics for 16.1.105.34 ---

5 packet(s) transmitted, 4 packet(s) received, 20.0% packet loss

round-trip min/avg/max/std-dev = 2.063/2.204/2.331/0.095 ms

思科也配置动态链路聚合，注意思科动态聚合支持lacp和pagp，选择lacp就可以了