Skip to main content

In-Band vs Out of Band Management

There are always multiple ways of allocating IP address when it comes to management of routers and switches. There are dedicated management port as well as things like SVI ( Switch Virtual Interface) can always come into handy. Why to us SVI when you have a dedicated management port might always come into mind. Let me shortly explain the difference between SVI and dedicated management port and also its use case.

Out of Band Management

  • Dedicated management port with dedicate management plane 
  • Better in terms of security
  • More preferable
In-Band
  • Switch Virtual Interface (SVI) needs to be created 
  • Data Plane is used instead of dedicated management plane.
  • Not preferable in case of security kept in mind.
So why In-Band is required ? So , recently I came across a scenario where I had to connect back to back management port for vPC in Nexus 9000 series switch for peer link connectivity. So, I had to create a SVI interface for managing the device . This can be one of the scenario. The other one can be when you are trying to utilize your switches for its Layer 3 capabilities.
Labels:

Comments

Post a Comment

Popular posts from this blog

SSL Decryption FortiGate

  We have pretty much heard about SSL decryption and of malware hiding inside an encrypted traffic. A large amount of traffic in the internet is pretty much encrypted which basically means that bad things like malware, virus, ransomware can hide inside this encrypted traffic. If majority of these traffic are encrypted our Firewalls are not able to analyze these traffic which can easily infect our organization and the investment which we have done in these firewalls are wasted. There does come around a solution for this and as my topic suggest SSL Decryption also know as Deep Packet Inspection as by some IT folks. The image that I have attached down below clearly suggest about what I am trying to explain. Using deep packet inspection, the firewall simply decrypts the encrypted traffic happening  between client and server, inspects the content to find the threats and block them , then forwards it to the destination re-encrypting it . We will need to first setup the SSL/SSH in...
Post a Comment
Read more

SAN Switch Zoning with Brocade

Zoning in Brocade SAN Switch Let's begin with resetting the switch completely. In my environment I have two brocade SAN Switch connecting to 2 Dell R940 server configured with VMware. The SAN switch will be having connectivity between Dell Unity 500 storage and Dell R940 servers. Multipathing will be done between the server and storage with the help of SAN Switch. Multipathing, also called SAN multipathing or I/O multipathing, is the establishment of multiple physical routes between a server and the storage device that supports. It results in better fault tolerance and performance enhancement. DESIGN The idea behind zoning is that intended WWPN talk with each other . This is more like ACL in the world of Ethernet. To see the devices which are logged into the switch the following commands can be executed. SAN-A:admin> switchshow switchName: SAN-A switchType: 118.1 switchState: Online switchMode: Native switchRole: Principal switchDomain: 1 switchId: ...
Post a Comment
Read more

High Availability Palo Alto (Active/Standby)

 High Availability is usually performed in most of the data centers networks today which ensures application availability . High Availability is usually achieved in case one of the appliance goes down or have some physical or logical connectivity issues.  Achieving high availability in Palo Alto firewall is relatively very easy. Palo Alto firewall can work in both Active/Standby mode or in Active/Active. We will basically be talking about Active/Standby mode in this article. There are basically two links that needs to be configure in Palo Alto for HA. 1. Control Links Control Links are associated with control plane traffic which is mainly used for heartbeat exchanged, configuration synchronization. Dedicate HA ports are available in higher series of Palo Alto or even a HA interface can be created for some inband ports.   2. Data Links Data Links are mainly used for session synchronization, forwarding table synchronization. Dedicated HSCI Ports are available for highe...
Post a Comment
Read more