Author Archives: Ruben

Juniper Open Learning: JNCIE-ENT Certification Exam Preparation

Tuesday, June 11, 2019 7:00 AM PST If you are considering taking or actively preparing for the Enterprise Routing and Switching, Expert (JNCIE-ENT) exam (and joining the #JNCIEClub2019), then join us for a free certification prep session. This session will address many of the common questions candidates have prior to taking a JNCIE exam and it will give you an opportunity to ask your own questions. As a BONUS, registrants will also receive a 25% discount voucher for the purchase of a JNCIE-ENT Self-Study Bundle. You will receive your discount voucher via email within 1-2 days after the event has run. Hurry up, seats re filling fast.

To register for the webcast follow this ink

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CLEUR Barcelona 2019 Day 1

A very exciting first day with swags, Cisco Champion giffs, and do networking with really nice people about new trends and challenges in the industry. Why Cisco Live? it’s the opportunity to talk with your peers, explore, connect, and be inspired by Cisco’s top experts, partners, and customers. It’s an event you don’t want to miss.

CCIE Security Techtorial – TECCCIE-3202

I was really interested on this session, but it turns out that it was just a lecture instead of a hands-on session like in other tracks. The session went smooth with some questions about ISE, ESA and WSA. A few videos were provided as well on how to configure certain tasks on some of the platforms mentioned before, not a big deal.

It was awesome to meet all the team and have some chat. I would like to say thank you to Yusuf Bhaiji, Ziaul Hussain, Vivek Santuka, Ana Peric

If you are looking to start your CCIE Security journey find here CCIE Security Study Material  the most relevant materials for study.

How to upgrade Arista switches

This is a quick guide on how to upgrade Arista switches, you need to have a support contract with Arista to donwload their latest version of software.

Confirm the actual version

ARISTA-7504-02(s1)(config)#show version
Arista DCS-7504N
Hardware version: 12.00
Serial number: HSH18100113
System MAC address: 2899.3a61.db81Software image version: 4.19.8M
Architecture: i386
Internal build version: 4.19.8M-8840164.4198M
Internal build ID: c419af27-06da-4a41-b1c3-567309a30adeUptime: 19 hours and 46 minutes
Total memory: 31583780 kB
Free memory: 28199196 kB

Entering in bash mode


Arista Networks EOS shell

[[email protected] ~]$ scp [email protected]:EOS-4.20.8M.swi /mnt/flash/EOS-4 .20.8M.swiEOS-4.20.8M.swi
Warning: Permanently added ‘’ (RSA) to the list of known hosts.
[email protected]’s password:
EOS-4.20.8M.swi 100% 596MB 85.1MB/s 00:07

Copying the firmware required, it’s possible to copy it using different methods

[[email protected] ~]$ exit
ARISTA-7504-01(s1)#conf t
ARISTA-7504-01(s1)(config)#install source ?
certificate: Source path
extension: Source path
file: Source path
flash: Source path
ftp: Source path
http: Source path
https: Source path
scp: Source path
sftp: Source path
sslkey: Source path
terminal: Source path
tftp: Source path

After copy the firmware over, it’s time to install and reboot it

ARISTA-7504-01(s1)(config)#install source flash:EOS-4.20.8M.swiEOS-4.20.8M.swi reload now
Preparing new boot-config… done.
Committing changes… done.
Reloading…Broadcast message from [email protected] (Thu Sep 13 13:28:29 2018):The system is going down for reboot NOW!

Once rebooted, the new version is ready!

ARISTA-7504-01(s1)#show version
Arista DCS-7504N
Hardware version: 12.00
Serial number: HSH18100137
System MAC address: 2899.3a61.db99

Software image version: 4.20.8M
Architecture: i386
Internal build version: 4.20.8M-9384033.4208M
Internal build ID: 5c08e74b-ab2b-49fa-bde3-ef7238e2e1ca

Uptime: 3 weeks, 4 days, 3 hours and 52 minutes
Total memory: 31579144 kB
Free memory: 28315128 kB

Magic Quadrant for Enterprise Network Firewalls 2018

Security landscape is evolving fast, so fast detection and mitigation is important for customers.   Many enterprises are looking to firewall vendors to provide cloud-based malware detection instances to aid them in their advanced threat detection efforts, as a cost-effective alternative to stand-alone sandboxing appliances.
SSL Decryption is one of the key topics, since TLS 1.2 to the TLS 1.3 standard will undoubtedly force changes in how enterprise firewall vendors process the traffic.
Policy Orchestration and Automation Become Critical on SDN deployments, some vendors haven’t provide much attention om this topic. Firewall Services Within IaaS Environments Become an Area of Differentiation.

Magic Quadrant for Enterprise Network Firewalls

Full Report on Report Magic Quadrant for Enterprise Network Firewalls 2018