1.부팅시 스페이스 연타로 부트로더로 들어간다.

2. loader>boot -s 
   를 누르면 싱글유저 모드로 부팅

3. 부팅 중 아래와 같이 나오면 recovery 입력
   Enter full path name of shell or 'recovery' for root password recovery or RETURN for /bin/sh:  recovery
----------------------------------------------------------------------------------------------
패스워드 설정 안해도 되는 초기화법

1. 위의 3번에서 recovery 치지말고 그냥 엔터

2. mount -a
    mkdir /config/temp
    mv /config/*.gz /config/temp
    shutdown -r now 

입력 하면 재부팅 되면서 초기설정으로 들어감.

request system zeroize    공장초기화
리부팅 

set system root-authentication plain-text-password
usb 설치 하고 부팅 
install file:///jinstall-ex-3200-12.3R6.6-domestic-signed.tgz
request system power-off at now    시스템 종료
================================================================
show chassis hardware  하드웨어 보는 명령어

<load-configuration format="xml">
<configuration>
    <interfaces>
        <interface>
            <name>et-0/0/0</name>
            <unit>
                <name>0</name>
                <family>
                    <inet>
                        <filter>
                            <input>
                                <filter-name>fw_filter</filter-name>
                            </input>
                        </filter>
                    </inet>
                </family>
            </unit>
        </interface>
<interface>
            <name>et-0/0/10</name>
            <unit>
                <name>0</name>
                <family>
                    <inet>
                        <filter>
                            <input>
                                <filter-name>fw_filter</filter-name>
                            </input>
                        </filter>
                    </inet>
                </family>
            </unit>
        </interface>
        <interface>
            <name>et-0/0/20</name>
            <unit>
                <name>0</name>
                <family>
                    <inet>
                        <filter>
                            <input>
                                <filter-name>fw_filter</filter-name>
                            </input>
                        </filter>
                    </inet>
                </family>
            </unit>
        </interface>
    </interfaces>
    <forwarding-options>
        <port-mirroring>
            <instance>
                <name>tcp80</name>
                <family>
                    <inet>
                        <output>
                            <interface>
                                <name>et-0/0/30.0</name>
                                <next-hop>
                                    <name>200.0.10.2</name>
                                </next-hop>
                            </interface>
                        </output>
                    </inet>
                </family>
            </instance>
            <instance>
                <name>tcp443</name>
                <family>
                    <inet>
                        <output>
                            <interface>
                                <name>et-0/0/30.0</name>
                                <next-hop>
                                    <name>200.0.10.2</name>
                                </next-hop>
                            </interface>
                        </output>
                    </inet>
                </family>
            </instance>
            <instance>
                <name>udp123</name>
                <family>
                    <inet>
                        <output>
                            <interface>
                                <name>et-0/0/30.0</name>
                                <next-hop>
                                    <name>200.0.10.2</name>
                                </next-hop>
                            </interface>
                        </output>
                    </inet>
                </family>
            </instance>
        </port-mirroring>
    </forwarding-options>
    <firewall>
        <family>
            <inet>
                <filter>
                    <name>fw_filter</name>
                    <term>
                        <name>tcp80</name>
                        <from>
                            <destination-address>
                                <name>1.1.1.1/32</name>
                            </destination-address>
                            <protocol>tcp</protocol>
                            <destination-port>80</destination-port>
                        </from>
                        <then>
                            <port-mirror-instance>tcp80</port-mirror-instance>
                            <discard>
                            </discard>
                        </then>
                    </term>
                    <term>
                        <name>tcp443</name>
                        <from>
                            <destination-address>
                                <name>2.2.2.2/32</name>
                            </destination-address>
                            <protocol>tcp</protocol>
                            <destination-port>443</destination-port>
                        </from>
                        <then>
                            <port-mirror-instance>tcp443</port-mirror-instance>
                            <discard>
                            </discard>
                        </then>
                    </term>
                    <term>
                        <name>udp123</name>
                        <from>
                            <source-address>
                                <name>3.3.3.3/32</name>
                            </source-address>
                            <protocol>udp</protocol>
                            <source-port>123</source-port>
                        </from>
                        <then>
                            <port-mirror-instance>udp123</port-mirror-instance>
                            <discard>
                            </discard>
                        </then>
                    </term>
                    <term>
                        <name>default</name>
                        <then>
                            <accept/>
                        </then>
                    </term>
                </filter>
            </inet>
        </family>
    </firewall>
</configuration>
</load-configuration>
<commit/>

Juniper EX S/W Factory Reset

[edit]
user@switch# load factory-default

[edit]
user@switch# run request system zeroize

[edit]
user@switch# delete system commit factory-settings
[edit]
user@switch# set system root-authentication plain-text-password
[edit]
user@switch# commit

Firmware Upgrade

root@SW2# run request system software add /var/tmp/jinstall-ex-4300-14.1X53-D45.3-domestic-signed.tgz reboot

root@SW2# run monitor traffic interface ge-0/2/0 size 1500