Contents

Introduction· 1

Prerequisites· 1

General restrictions and guidelines· 1

Example: Using Python script to set up an IRF fabric automatically· 1

Network configuration· 1

Restrictions and guidelines· 2

Procedures· 2

Preparing files· 2

Configuring Device C (the DHCP server) 16

Configuring the HTTP server 16

Verifying the configuration· 16

Configuration files· 17

 

Introduction

This document provides examples for using Python script to set up an IRF fabric automatically.

Prerequisites

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that the candidate IRF devices are operating in standalone mode.

This document assumes that you have basic knowledge of IRF, Python, and automatic IRF setup.

General restrictions and guidelines

The switch can form an IRF fabric only with switches of the same model. Make sure the following items are the same across all member devices:

·     Number of cards.

·     Card models.

·     Slot number for cards of the same model.

·     Operating mode for the same slot (set by using the switch-mode command).

Example: Using Python script to set up an IRF fabric automatically

Network configuration

As shown in Figure 1, the administrator has only remote access to Device A and Device B, which have been physically connected for IRF setup. To have the two devices automatically configured into an IRF fabric:

·     Edit a Python script file to configure Device A and Device B as follows:

¡     Enable the devices to merge into an IRF fabric automatically.

¡     Enable Telnet access to the IRF fabric, and configure password authentication on VTY lines.

·     Store the Python file on an HTTP file server.

·     Issue the Python script file to the devices through a DHCP server.

Figure 1 Network diagram

 

Restrictions and guidelines

When you set up an IRF fabric by using Python script, follow these restrictions and guidelines:

·     To do a successful automatic IRF setup, make sure the network environment has been set up as planned before you power on the candidate IRF member devices.

In this example, make sure the network has been set up as shown in Figure 1 before you power on Device A and Device B.

·     The devices can start python-based automatic IRF setup only upon initial power-on or when they do not have next-startup configuration files.

·     Two devices must run the same software version for a successful IRF setup. To ensure a successful IRF setup, edit the script to have the IRF member devices load the same software version.

·     As a best practice, do not edit the content format of the Python script file provided in this document. If the file contains errors such as redundant spaces or characters, you will receive the File "autocfgjuQccA", line n error message. The message indicates that the command at line n has failed to execute.

·     The IRF setup script contains steps to verify validity of the configuration files and software image file.

¡     If file validity check is desirable, save the configuration and software image files along with their correct MD5 files to the HTTP file server. Invalid MD5 files will result in a file download failure.

¡     If file validity check is not desirable, you do not need to save the MD5 files for the configuration and software image files on the server. The system will skip file validity check and continue with subsequent steps. In this situation, you will receive an MD5 file retrieval failure message, which does not require administrative action.

Procedures

Preparing files

1.     Create the Python script file for IRF setup and then store it on the HTTP server. In this example, the script file is named device.py.

Use the script to have each member device perform the following operations:

a.     (Optional.) Verifies that the flash memory has sufficient storage space for the downloaded files.

b.     Downloads the files for IRF setup from the HTTP server, including the configuration file, the software image file, and the sn.txt.

c.     Sets the software image file as the main startup image file.

d.     Assigns a unique IRF member ID to each member device based on their SNs.

e.     Specifies the configuration file as the main next-startup configuration file.

f.     Reboots.

The following is the sample Python script file content:

#!usr/bin/python

 

import comware

from time import strftime,gmtime,sleep

import signal

import os

import string

import commands

import hashlib

 

#python_config_file_mode

#'python_static'

#python_serial_number

#U can use 2 modes to obtain the config file

#- 'python_static'

#- 'python_serial_number'

python_config_file_mode = "python_serial_number"

 

#specify the minimum amount of storage space (in KB) required for saving the files

required_space = 500000

 

#transfer information

username = ""

password = ""

hostname = "192.168.1.40"

protocol = "http"

vrf = ""

config_timeout = 120

irf_timeout = 120

image_timeout = 2100

 

#Server file path

server_path = ""

 

#Local file path

local_path = "flash:/"

 

#Local config file name

config_local_name = "startup.cfg"

 

#Config file name on the server

config_server_name = "startup.cfg"

 

#Local boot file name (use the S10500X switch series as an exmaple)

boot_local_name = "s10500X.ipe"

 

#Boot file name on the server (use the S10500X switch series as an exmaple)

boot_server_name = "s10500X.ipe"

 

#Local SN file name

irf_local_name = "sn.txt"

 

#SN file name on the server

irf_server_name = "sn.txt"

 

python_log_name = ""

 

#Write the log file

def write2Log(info):

  global python_log_name, local_path

  if python_log_name == "":

    try:

      python_log_name = "%s%s_python_%s_script.log" %(local_path, strftime("%Y%m%d%H%M%S", gmtime()), os.getpid())

    except Exception as inst:

      print inst

  fd = open(python_log_name, "a")

  fd.write(info)

  fd.flush()

  fd.close()

 

#Get the file path according to the chassis ID and slot ID

def getPath(chassisID, slotID):

  global local_path

  path = ""

  obj = comware.get_self_slot()

  if (obj[0] == chassisID) and (obj[1] == slotID):

    return local_path

  if chassisID != -1:

    path = "chassis%d#" % chassisID

  if slotID != -1:

    path = "%sslot%d#%s" %(path, slotID, local_path)

  return path

 

#Remove files

def removeFile(filename):

  try:

    os.remove(filename)

  except os.error:

    pass

 

#Clear device temp files

def cleanDeviceFiles(str, oDevNode):

  global config_local_name, boot_local_name, irf_local_name

  sFilePath = getPath(oDevNode[0], oDevNode[1])

  if str == "error":

    removeFile("%s%s" %(sFilePath, config_local_name))

  removeFile("%s%s" %(sFilePath, boot_local_name))

  removeFile("%s%s" %(sFilePath, irf_local_name))

  removeFile("%s%s.md5" %(sFilePath, config_local_name))

  removeFile("%s%s.md5" %(sFilePath, boot_local_name))

  removeFile("%s%s.md5" %(sFilePath, irf_local_name))

  write2Log("\ndelete %s all files\n" %sFilePath)

  print "\ndelete %s all files" %sFilePath

 

#Clear files

def cleanupFiles(str):

  aSlotRange = []

  if ("get_standby_slot" in dir(comware)):

    aSlotRange = aSlotRange + comware.get_standby_slot()

 

  aSlotRange.append(comware.get_self_slot())

  i = 0

  while i < len(aSlotRange):

    if(aSlotRange[i] != None):

      cleanDeviceFiles(str, aSlotRange[i])

    i = i + 1

 

#Verify if free space is available for downloading the configuration file and software image file

def verifyfreespace(path):

  global required_space

  try:

    s = os.statvfs(path)

    freespace = (s.f_bavail * s.f_frsize) /1024

    write2Log("\nthe %s free space is %s" %(path, freespace))

    print "\n####the %s free space is %s####" %(path, freespace)

    if required_space > freespace:

      write2Log("\nthe %s space is not enough" % path)

      print "\n####the %s space is not enough####" % path

      return False

  except Exception as inst:

    write2Log("\nverify %s free space exception: %s" % (path, inst))

    print "\n####verify %s free space exception: %s####" % (path, inst)

    return False

  return True

 

#Verify if the free space is sufficient.

def verifyDeviceFree(obj):

  path = getPath(obj[0], obj[1])

  if True != verifyfreespace(path):

    return False

  return True

 

#Check the free space of all MPUs

def verifyAllFreeSpace():

  aSlotRange = []

  if ("get_standby_slot" in dir(comware)):

    aSlotRange = aSlotRange + comware.get_standby_slot()

 

  aSlotRange.append(comware.get_self_slot())

  bAllEnough = True

  i = 0

  while i < len(aSlotRange):

    if(aSlotRange[i] != None) and (True != verifyDeviceFree(aSlotRange[i])):

      bAllEnough = False

    i = i + 1

  return bAllEnough

 

def doExit(str):

  if str == "success":

    write2Log("\nThe script is running success!")

    print "\n#### The script is running success! ####" 

    cleanupFiles("success")

    comd = "reboot force"

    comware.CLI(comd, False) 

    exit(0)

  if str == "error":

    write2Log("\nThe script is running failed!")

    print "\n#### The script is running failed! ####"

    cleanupFiles("error")

    exit(1)

  else:

    exit(0)

 

#Get Chassis and Slot

def getChassisSlot(style):

  if style == "master":

    obj = comware.get_self_slot()

  if len(obj) <= 0:

    write2Log("\nget %s chassis and slot failed" % style)

    print "\n####get %s chassis and slot failed####" % style

    return None

  return obj

 

#Signal terminal handler function

def sig_handler_no_exit(signum, function):

  write2Log("\nSIGTERM Handler while configuring boot-loader variables")

  print "\n####SIGTERM Handler while configuring boot-loader variables####"

 

#Signal terminal handler

def sigterm_handler(signum, function):

  write2Log("\nSIGTERM Handler")

  print "\n####SIGTERM Handler####"

  cleanupFiles("error")

  doExit("error")

 

#Transfer files

def doCopyFile(src = "", des = "", login_timeout = 10):

  global username, password, hostname, protocol, vrf

  print "INFO: Starting Copy of %s" % src

  try:

    removeFile(des)

    obj = comware.Transfer(protocol, hostname, src, des, vrf, login_timeout, username, password)

    if obj.get_error() != None:

      write2Log("\ncopy %s failed: %s" % (src, obj.get_error()))

      print "\n####copy %s failed: %s####" % (src, obj.get_error())

      return False

  except Exception as inst:

    write2Log("\ncopy %s exception: %s" % (src, inst))

    print "\n####copy %s exception: %s####" % (src, inst)

    return False

  write2Log("\ncopy file %s to %s success" % (src, des))

  print "INFO: Completed Copy of %s" % src

  return True

 

#Get MD5SUM from md5ConfigFile

def getMD5SumGiven(keyword, filename):

  try:

    file = open(filename, "r")

    line = file.readline()

    while "" != line:

      if not string.find(line, keyword, 0, len(keyword)):

        line = line.split("=")

        line = line[1]

        line = line.strip()

        file.close()

        return line

      line = file.readline()

    file.close()

  except Exception as inst:

    write2Log("\nget %s md5 exception: %s" % (filename, inst))

    print "\n####get %s md5 exception: %s####" % (filename, inst)

  return ""  

 

#Verify MD5SUM of the file

def verifyMD5sumofFile(md5sumgiven, filename):

  if md5sumgiven == "":

    write2Log("\nverify %s md5 error: the %s md5 file is error" %(filename, filename))

    print "\n####verify %s md5 error: the %s md5 file is error####" %(filename, filename)

    return False

  try:

    m = hashlib.md5()

    f = open(filename, 'rb')

    buffer = 8192

    while 1:

      chunk = f.read(buffer)

      if not chunk:

        break

      m.update(chunk)

    f.close()

    md5calculated = m.hexdigest()

  except Exception as inst:

    write2Log("\nverify %s md5 exception: %s" % (filename, inst))

    print "\n####verify %s md5 exception: %s####" % (filename, inst)

    return False

  if md5sumgiven == md5calculated:

    return True

  write2Log("\nverify %s md5 error: md5sumgiven is %s filemd5 is %s" %(filename, md5sumgiven, md5calculated))

  print "\n####verify %s md5 error: md5sumgiven is %s filemd5 is %s####" %(filename, md5sumgiven, md5calculated)

  return False

 

#Check MD5 file

def checkFile(src, dest):

  src = "%s.md5" % src

  destmd5 = "%s.md5" % dest

  bFlag = doCopyFile(src, destmd5, 120)

  if (True == bFlag) and (True == verifyMD5sumofFile(getMD5SumGiven("md5sum", destmd5), dest)):

    write2Log("\ncheckFile success: %s" % destmd5)

    print "\n####checkFile success: %s####" % destmd5

    return True

  elif (True != bFlag):

    write2Log("\n%s is not exist! Don't verify the MD5 file!" % destmd5)

    print "INFO: %s is not exist! Don't verify the MD5 file!" % destmd5

    return True

  return False

 

#Get config file according to the mode

def getCfgFileName():

  global config_server_name

  if (python_config_file_mode == "python_serial_number") and (os.environ.has_key('DEV_SERIAL')):   

    config_server_name = "%s.cfg" % os.environ['DEV_SERIAL']

    return config_server_name

  else:

    return config_server_name

 

#Copy file to all standby slots

def syncFileToStandby(sSrcFile, sFileName):

  try:

    aSlotRange = []

    if ("get_standby_slot" in dir(comware)):

      aSlotRange = aSlotRange + comware.get_standby_slot()

      

    i = 0

    while i < len(aSlotRange):

      if(aSlotRange[i] != None):

        sDestFile = "%s%s" %(getPath(aSlotRange[i][0], aSlotRange[i][1]), sFileName)

        removeFile(sDestFile)

        open(sDestFile,"wb").write(open(sSrcFile,"rb").read())

        write2Log("\nsync file to standby %s" % (sDestFile))

        print "\n####sync file to standby %s####" % (sDestFile)

      i = i + 1

  except Exception as inst:

    write2Log("\nsync file to standby %s exception: %s" % (sSrcFile, inst))

    print "\n####sync file to standby %s exception: %s####" % (sSrcFile, inst)

 

#Procedure to copy config file by using global information

def copyAndCheckFile(src, dest, timeout):

  global server_path, local_path

  srcTmp = "%s%s" % (server_path, src)

  sDestFile = "%s%s" % (local_path, dest)

  if (True == doCopyFile(srcTmp, sDestFile, timeout)) and (True == checkFile(srcTmp, sDestFile)):

    syncFileToStandby(sDestFile, dest)

    return True

  else:

    srcTmp = "%sdefault_%s" %(server_path, src)

    if (True == doCopyFile(srcTmp, sDestFile, timeout)) and (True == checkFile(srcTmp, sDestFile)):

      syncFileToStandby(dest)

      return True

  return False

 

# Split the Chassis and Slot 

def splitChassisSlot(chassisID, slotID):

  chassis_slot = ""

  if chassisID != -1:

    chassis_slot = " chassis %d"  % chassisID

  if slotID != -1:

    chassis_slot = "%s slot %d" %(chassis_slot, slotID)

  return chassis_slot

 

#download startup image package from the HTTP server

def copyBootImage():

  global image_timeout, local_path, boot_server_name, boot_local_name

  src = "%s" % boot_server_name

  return copyAndCheckFile(src, boot_local_name, image_timeout)

 

#download the configuration file from the HTTP server

def copyCfgFile():

  global config_timeout, local_path, config_local_name

  src = "%s" % getCfgFileName()

  return copyAndCheckFile(src, config_local_name, config_timeout)

 

#download the sn.txt file from the HTTP server

def copyIrfStack():

  global irf_timeout, local_path, irf_local_name, irf_server_name

  src = "%s" % irf_server_name

  return copyAndCheckFile(src, irf_local_name, config_timeout)

 

# Procedure to install boot image

def installBoot(chassis_slot, sFile, style):

  result = None

  write2Log("\ninstall%s%s begin" %(chassis_slot, style))

  print "INFO: Install%s%s Start, Please Wait..." %(chassis_slot, style)

  comd = "boot-loader file %s%s%s" % (sFile, chassis_slot, style)

  try:

    result = comware.CLI(comd, False)

    if result == None:

      write2Log("\nboot-loader file %s%s%s failed" % (sFile, chassis_slot, style))

      print "\n####boot-loader file %s%s%s failed####" % (sFile, chassis_slot, style)

      return False

  except Exception as inst:

    write2Log("\nboot-loader %s exception: %s" % (sFile, inst))

    print "\n####boot-loader %s exception: %s####" % (sFile, inst)

    return False 

  return True

 

#Procedure to install boot image

def installBootImage():

  global boot_local_name

  aSlotRange = [comware.get_self_slot()]

  if ("get_standby_slot" in dir(comware)):

    aSlotRange = aSlotRange + comware.get_standby_slot()

  bInstallOk = True

  i = 0

  while i < len(aSlotRange):

    sFile = "%s%s" %(getPath(aSlotRange[0][0], aSlotRange[0][1]), boot_local_name)

    if False == installBoot(splitChassisSlot(aSlotRange[i][0], aSlotRange[i][1]), sFile, " main"):

      bInstallOk = False

    i = i + 1

  return bInstallOk

 

#execute the startup saved-configuration command to specify the next-startup configuration file

def startupCfg():

  global local_path, config_local_name

  result = None

  dest = "%s%s" %(local_path, config_local_name)

  write2Log("\nstartup saved-configuration %s begin" %dest)

  print "INFO: Startup Saved-configuration Start"

  comd = "startup saved-configuration %s main" % dest

  try:

    result = comware.CLI(comd, False)

    if result == None:

      write2Log("\nstartup saved-configuration %s failed" % dest)

      print "\n####startup saved-configuration %s failed####" % dest

      return False

  except Exception as inst:

    write2Log("\nstartup %s exception: %s" % (dest, inst))

    print "\n####startup %s exception: %s####" % (dest, inst)

    return False

  write2Log("\nstartup saved-configuration %s success" % dest)

  print "INFO: Completed Startup Saved-configuration"

  return True

 

def getIrfCfg(line, num):

  line = line.split()

  number = None

  if 3 == len(line):

    number = line[num]

  else :

    number = None

  return number 

 

def getMemberID():

  aMemId = comware.get_self_slot()

  memId = None

  if aMemId[0] == -1 :

    memId = aMemId[1]

  else :

    memId = aMemId[0]

  return memId

 

def getNewMemberID():

  global irf_local_name, local_path, env

  filename = "%s%s" %(local_path, irf_local_name)

  serNum = os.environ['DEV_SERIAL']

  reNum = None

  try:

    file = open(filename, "r")

    line = file.readline()

    while "" != line:

      if (serNum == getIrfCfg(line, 0)):

        file.close()

        reNum = getIrfCfg(line, 2)

        return reNum

      line = file.readline()

    file.close()

  except Exception as inst:

    write2Log("\nget renumberID exception: %s" % inst)

    print "\n####get renumberID exception: %s####" % inst

  write2Log("\nget %s renumberID failed" % filename)

  print "\n#### get %s renumberID failed ####" % filename

  return reNum

 

#determine whether the IRF fabric has been built successfully

def isIrfDevice():

  try:

    result = comware.CLI("display irf", False)

    if result == None:

      return False

  except Exception as inst:

    return False

  return True

 

#parse the sn.txt file and renumber the member ID as configured in the file

def getIrfComd():

  comd = None

  newMemberID = getNewMemberID()

  aMemId = comware.get_self_slot()

  if None == newMemberID:

    return None

  if False == isIrfDevice():

    comd = "system-view ; irf member %s ; chassis convert mode irf" % newMemberID

  else:

    comd = "system-view ; irf member %s renumber %s" % (getMemberID(), newMemberID)

  return comd

 

def stackIrfCfg():

  global env

  if (not os.environ.has_key('DEV_SERIAL')):

    write2Log("\nenviron variable 'DEV_SERIAL' is not found!")

    print "\n####environ variable 'DEV_SERIAL' is not found!####" 

    return False

  comd = getIrfComd()

  if None == comd:

    return False

  result = None

  write2Log("\nstartup stack irf begin")

  print "INFO: Startup stack irf Start"

  try:

    result = comware.CLI(comd, False)

    if result == None:

      write2Log("\nstartup stack irf failed: %s" % comd)

      print "\n####startup stack irf failed: %s####" %comd

      return False

  except Exception as inst:

    write2Log("\nstartup stack irf exception: %s command: %s" % (inst, comd))

    print "\n####startup stack irf exception: %s command: %s####" % (inst, comd)

    return False

  write2Log("\nstartup stack irf success")

  print "INFO: Completed Startup Stack Irf"

  return True

 

#Check if all standby slots are ready

def ifAllStandbyReady():

  if (("get_slot_range" in dir(comware)) == False):

    return True

 

  aSlotRange = comware.get_slot_range()

  bAllReady = True

  for i in range(aSlotRange["MinSlot"], aSlotRange["MaxSlot"]):

    oSlotInfo =  comware.get_slot_info(i)

    if (oSlotInfo != None) and (oSlotInfo["Role"] == "Standby") and (oSlotInfo["Status"] == "Fail"):

      bAllReady = False

      write2Log("\nSlot %s is not ready!" %i)

      print "\n####Slot %s is not ready!####" %i

  return bAllReady

 

# If any standby slots are not ready, wait

def waitStandbyReady():

  while ifAllStandbyReady() == False:

    sleep(10)

 

#python main

 

# User can stop the script when downloading files

waitStandbyReady()

signal.signal(signal.SIGTERM, sigterm_handler)

 

if (True == verifyAllFreeSpace()) and (True == copyBootImage()) and (True == copyCfgFile()) and (True == copyIrfStack()):

  # User cannot stop the script after downloading files

  signal.signal(signal.SIGTERM, sig_handler_no_exit)

  if (True == installBootImage()) and (True == startupCfg()) and (True == stackIrfCfg()):

    doExit("success")

doExit("error")

2.     Create a configuration file for each device and save the configuration files to the HTTP server.

Name the configuration files in serial_number.cfg format, where the serial_number argument represents the serial number of the device.

In the configuration files, specify the configuration for IRF setup and parameters for device login (telnet in this example), including login authentication settings.

 

NOTE: To obtain the serial number, use one of the following methods: ·     Examine the label on the chassis rear panel. ·     Execute the display device manuinfo command.

 

This example uses the following configuration files:

¡     210235A045B05B0004354.cfg:

#

telnet server enable

#

 irf mac-address persistent timer

 irf auto-update enable

 undo irf link-delay

 irf member 1 priority 1

 irf mode normal

#

irf-port 1/2

 port group mdc 1 interface Ten-GigabitEthernet1/0/1 mode enhanced

#

interface Ten-GigabitEthernet1/0/1

 port link-mode bridge

#

interface M-GigabitEthernet0/0/0

 ip address 192.168.0.63 255.255.255.0

#

line vty 0 63

 user-role network-admin

 set authentication password simple 123

#

¡     210235A045B05B0004350.cfg:

#

telnet server enable

#

 irf mac-address persistent timer

 irf auto-update enable

 undo irf link-delay

 irf member 2 priority 1

 irf mode normal

#

irf-port 2/1

 port group mdc 1 interface Ten-GigabitEthernet1/0/1 mode enhanced

#

interface Ten-GigabitEthernet1/0/1

 port link-mode bridge

#

interface M-GigabitEthernet0/0/0

 ip address 192.168.0.63 255.255.255.0

#

line vty 0 63

 user-role network-admin

 set authentication password simple 123

#

3.     Create the sn.txt file to store serial number and member ID mappings for the member devices, and then save the file to the HTTP server. The device will run the python script to parse the sn.txt file, change its member ID as configured, and then self-configure with the settings for that member ID.

sn                         Irf group                  Irf number

210235A045B05B0004354          100                           1

210235A045B05B0004350          100                           2

 

Column	Description
sn	Serial numbers of the member devices. Each SN uniquely represents a device. The script uses these SNs to assign a unique IRF member ID to each member device and configure the member devices based on their member IDs. To obtain the serial number, use one of the following methods: ·     Examine the label on the chassis rear panel. ·     Execute the display device manuinfo command.
Irf group	IRF group number administratively used for easy identification of IRF fabric memberships. This number is not used for IRF setup. You can use any numbering plan for your management purposes.
Irf number	IRF member ID. Each device must use a unique member ID.

 

4.     Save the startup software image file (s10500X.ipe in this example) to the HTTP server. (Details not shown.)

You must upgrade software for consistency if the member devices use different versions of software.

5.     Save MD5 files for the configuration files and software image file to the HTTP server if file verification is required. You must save the MD5 files in the same directory as the configuration files and software image file. (Details not shown.)

Configuring Device C (the DHCP server)

# Enable DHCP. Configure an address pool to assign IP addresses to the subnet that contains the member switches. This example uses the 192.168.1.0/24 subnet.

<DeviceC> system-view

[DeviceC] dhcp enable

[DeviceC] dhcp server ip-pool 1

[DeviceC-dhcp-pool-1] network 192.168.1.0 24

# Specify the URL of the script file for the clients.

[DeviceC-dhcp-pool-1] bootfile-name http://192.168.1.40/device.py

[DeviceC-dhcp-pool-1] quit

Configuring the HTTP server

# Configure the HTTP server and enable HTTP service, as described in the HTTP server user guide. (Details not shown.)

Verifying the configuration

Telnet to any one of the IRF member devices to verify the IRF setup. In this example, telnet to a port on Device A.

# Verify that you can use the configured password to Telnet to the IRF fabric.

Password:

******************************************************************************

* Copyright (c) 2004-2019 New H3C Technologies Co., Ltd. All rights reserved. *

* Without the owner's prior written consent,                                 *

* no decompiling or reverse-engineering shall be allowed.                    *

******************************************************************************

 

<DeviceA>

# Verify that Device A and Device B have formed an IRF fabric.

<DeviceA> display irf

MemberID  Slot  Role    Priority  CPU-Mac         Description

   1      1     Standby 1         00e0-fc0f-8c02  ---

 *+2      1     Master  1         00e0-fc0f-8c14  ---

--------------------------------------------------

 * indicates the device is the master.

 + indicates the device through which the user logs in.

 The Bridge MAC of the IRF is: 000c-1000-1111

 Auto upgrade                : yes

 Mac persistent              : 6 min

 Domain ID                   : 0

 Auto merge                  : yes

 IRF mode                    : normal

Configuration files

·     Device A and Device B:

#

telnet server enable

#

 irf mac-address persistent timer

 irf auto-update enable

 undo irf link-delay

 irf member 1 priority 1

 irf member 2 priority 1

 irf mode normal

#

irf-port 1/2

port group mdc 1 interface Ten-GigabitEthernet1/0/1 mode enhanced

#

irf-port 2/1

 port group mdc 1 interface Ten-GigabitEthernet1/0/1 mode enhanced

#

interface Ten-GigabitEthernet1/0/1

 port link-mode bridge

#

 

interface M-GigabitEthernet0/0/0

 ip address 192.168.0.63 255.255.255.0

#

line vty 0 63

 user-role network-admin

 set authentication password hash $h$6$40hhbS6PeVJORuQu$X/9nQ9PSpPbtGDukVYGOW2Ao

9yJaekVbzovWv23pEKCVwzqqRP8Elnm1qRm4TEIbAetmwQG5gWyREMC3zRCOaQ==

#

·     Device C:

#

 dhcp enable

#

dhcp server ip-pool 1

 network 192.168.1.0 mask 255.255.255.0

 bootfile-name http://192.168.1.40/device.py

#