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Arista MLAG and Virtual Router Example

In this topology, I have 2 Arista switch and a Cisco switch. I will show an example of how MLAG configured on Arista devices. On Cisco side, due to LACP is not active, I used PAgP. On Arista side there is also virtual router configuration. Here are the configurations. First let’s look at the left…

FHRP Case 1

HSRP Approach In this topology, there is a gateway device (R3) and it has two routes to go to internet. These two routes are below and first one is R1 HSRP group 1 virtual IP address and second one is R2 HSRP group 2 virtual IP address. One of the router (R1 or R2) if…

Palo Alto CLI Commands

Here are some useful Palo Alto device CLI commands that I used before..

my python works

The screen below is the screen showing the main menu with daily operations. Proceed by entering the operation number. Operations are carried out using multi-threading on more than one device. In addition to printing the outputs to the screen, they are also written to separate text files as reports. After selecting the operation from the…

Some Linux howtodos

How to access internet through proxy, when we use yum? In the /etc/yum.conf file, add the line below, under the line that says [main]. How to access internet through proxy, when we use wget? In the /etc/wgetrc file, add the lines below How to check if a TCP port is open?

Juniper Aggregate and Generate Routes

Aggregate Routes Aggregated routes are used for route summarization, allowing us to represent a large number of routes with a broader network. This helps streamline configuration and reduces the clutter in routing tables. For example, let’s consider a scenario where one of the two routers, both engaged in dynamic routing, has three networks: 10.5.1.0/24, 10.5.2.0/24,…

Juniper Static Routing

Hello, in this article, we will explore how to configure static routes on Juniper devices. The main topics covered are summarized below: 1- Default Preference Value : 5 In the example below, a single static route is written on the device. When we want to see this route in the routing table, we can observe…

Configuring SNMPv3 on Palo Alto

SNMP is very useful for network engineers when we use Network Management Systems like PRTG and Solarwinds etc. Most likely it is must to have when we have hundreds or thousands of devices. SNMP v3 have authentication and encryption mechanism so it’s more secure than v2. SNMP v2 and v3 also have views to narrow…

Structured data with in Netmiko

Netmiko is very powerfull Python package. There are a lot of contributions. It cannot to be considered that it cannot support structured data. Sometimes manual parsing enough. Also when we get the command results as XML or JSON format, we have more possibilities. But what if we couldn’t get the the result as XML or…

Some PRTG API samples

Get a passhash code PRTG supports API, but we need to have a passhash code. It’s a link below that we can get a passhash for our user. Just you should adapt your PRTG. It returns a code like 111222333. 111222333 is our passhash. We will use it every API requests instead of using password.…