David Sudjiman

Just passed JNCIA-ER (JNO-341) few minutes ago. Juniper is offering a free JNCIA-ER and JNCIS-ER exam. These includes free downloadable material and free exam voucher.

Got nothing to loose, I’ve subscribed the track last month.

For JNCIA-ER, the subject is not that difficult. Just need to understand how to do stuff in Junos, H/W specifications, and a bit of internal forwarding.

For those who want to join JNCIA-ER and JNCIS-ER track, check this link.

This track is separated in two primary goals. The first one is to complete the JNCIA-ER. You will be presented with free reading material and other web-based training then at the end you need to pass the pre-assessment. Several days after you passed the pre-assessment, you will receive an email with your voucher number to use it within 30 days for your exam.

The second one, well haven’t done it so I don’t know much. But it should be similar steps like previous one.

Here some scrab notes I did when I studied JNCIA-ER. Hope it helps!

cisco										Junos
=====										=====
sh int								sh int terse
sh int | include Fa0/1						sh int terse | match se-3
sh int | exclude Fa0/1						sh int terse | exceprt fe-
											sh int terse | last	# show last page of #
											sh int terse | count # show how many lines are #
conf t										conf
int s1/0/0									edit int se-1/0/0
											edit unit 0
ip addr 10.210.1.1 255.255.255.252			set family inet addrress 10.210.1.1/30
no ip addr 10.210.1.1 255.255.255.252		delete family inet addrress 10.210.1.1/30 (leaves ip unumbered)
											delete family inet
											up (going up one hierarchy)
											top (going top of the hierarchy)
											set interfaces se-1/0/0 unit 0 family inter address 10.210.1.1/30
speed 100									set speed 100m
duplex full									set link-mode full-duplex

sh ip route									sh route

sh ip bgp summary							sh bgp summary
sh ip bgp neighbors							sh bgp neighbors
sh ip bgp nei advertised-routes				sh route advertising-protocol bgp 

sh ip ospf									sh ospf
sh ip ospf nei								sh ospf nei
sh ip ospf interface fe0/0/1				sh ospf interface fe0/0/1
sh ip route ospf							sh route protocol ospf

wr											save 

Junos Candidate Configuration
=============================
- Junos has 6 top hierachies (system, interfaces, protocols, policy-options, firewall, and snmp)

- When entering configuration mode, you will be prompted with notification that current other user configuration change has been made but not committed if there is a change.

- If you want to get exclusive change so that other users won’t be able to change, user command “configure exlusive”

- fe : Fast Ethernet
- ge : Gigabit Ethernet
- so : SONET
- t3 : DS3
- lo0: Loopback
- fxp0: OOB Fast Ethernet
- serial-options : serial
- e1-options: E1 interfaces
- e3-options: E3 interfaces
- t1-options: T1 interfaces
- t3-options: T3 interfaces
- sonet-options: SONET/SDH interfaces

- inet : IPv4
- inet6: IPv6
- mpls : MPLS

- “>” is operational mode where we can do sh command
- “#” configuration mode where we can configure. To do operational mode on this level do “run sh ….”

Invoke Auto instalation and confirm result
=============================================
conf
load merge ojre/autoinstallation-stanza
show compare
run monitor start autod
commit and-quit

Load factory default
====================
conf
load factory-default
show
edit system root-auth
set plain-text-password
commit

Performing initial configuration
================================
lab@london> configure
lab@london# show | display set
lab@london# load factory-default
lab@london# show
lab@london# edit system
lab@london# set host-name London
lab@London# set root-auth plain-text-password
lab@London# set login user lab class superuser
lab@London# set login user lab auth plain-text-password
lab@London# set services telnet
lab@London# set service ssh
lab@London# top edit interfaces
lab@London# show
lab@London# set lo0 unit 0 family inet address 192.168.36.1
lab@London# set se-1/0/1 description “to-Tokyo se-1/0/0″
lab@London# set se-1/0/1 unit 0 family inet address 10.222.2.2/24
lab@London# show | compare

lab@London# commit
lab@London# save 

Reload and commit previous saved configuration
==============================================
conf
load override

commit and-quit

Monitor System and Chassis Operation Using the CLI
==================================================
> sh system storage
> sh system uptime
> sh system users
> sh chassis hardware detail
> sh chassis environment # check temp #
> sh chassis pic fpc-slot 2 pic-slot 0
	OR
> sh chassis extensive
> sh int se-1/0/1 | match cos
> sh int se-1/0/1 extensive | match pps
> sh int se-1/0/1 extensive | match error
> sh int se-1/0/1 detail | find media

Testing interface
=================
> monitor interface  (CTRL-C to break the monitoring)
> monitor traffic int 
> ping rapid count 2000 size 1500 

License Management
==================
> sh system license usage
> sh system license installed
> request system license save  ( saving license as file)
> request system license delete ?
> request system license delete

> request system license add 

RIP
===
> sh route protocol rip
> sh route advertising-protocol rip
> sh rip nei se-1/0/0.2
> sh route 192.168.36.1

[edit protocols rip]
# show traceoptions | display set
# sh traceoptions
> monitor start rip-trace
> configure
# delete protocols rip traceoptions (delete rip debug)
# commit and-quit

Cleaning UP Routing protocols
==========================
> conf
# delete protocols
# delete policy-options
# commit and-quit

OSPF
=====
> conf
# delete protocols ospf
# delete routing-options router-id
# commit and-quit

[edit protocol ospf]
# show
# show | display set
> sh ospf interface
> sh ospf interface detail
> sh ospf nei
> sh ospf database
> sh ospf database router detail advertising-router 192.168.36.1
> clear ospf nei
> clear ospf database purge
> sh route protocol ospf 192.168.0.0/16
> monitor start ospf-trace | match “OSPF hello from”