Why it’s Important to Have an Assessment of Your Network

By Brandon Duclos, Solution Architect

I have encountered many situations where a customer may not know what’s on their network. It’s understandable because as you add to the network over the years, you need to figure out what’s still connected to it. Also, you may not have the proper documentation. These scenarios could greatly benefit from having an assessment done of your network. In the video below, I explain why it’s important and what an assessment entails.

Champion delivers Networking Assessment & Discovery services to help you navigate the networking road head. A comprehensive assessment includes a discovery of your data center, remote office(s), and monitoring. We will uncover the discovery results, action items and recommendations, and any high level risk items that may be discovered.

DATA CENTER DISCOVERY

Security/Firewall:

  • Review current firewall configuration against best practices and document areas that will be impacted by network design changes
  • Review remote VPN clients that are currently terminating to the device and document routing tables
  • Review version of code that is running on the device
  • Review HA logs to determine configuration and document changes that will impact network design changes

Core Network:

  • Review current HA configuration (HSRP/VRRP etc.)
  • Review Connections to servers to determine if port channels are configured properly and how VLAN changes will impact the infrastructure
  • Review existing configuration and VLANs against industry best practices
  • Review security policies and if there is a remote logging host that will be affected by network design changes
  • Determine if edge devices are properly connected for HA in the event one device goes offline
  • Review STP Configuration against industry best practices
  • Review version of code and licensing to see if additional features can be enabled/disabled to ensure network is running at maximum efficiency
  • Document current running configuration of the network switches

Edge Network:

  • Review current HA configuration (HSRP/VRRP etc.)
  • Review Connections to determine if ether channel is configured properly and how VLAN changes will impact the infrastructure
  • Review existing configuration and VLANs against industry best practices
  • Review security policies and if there is a remote logging host that will be affected by network design changes
  • Determine if edge devices are properly connected for HA in the event one device goes offline
  • Review STP Configuration against industry best practices
  • Review version of code to determine if latest GA code is being utilized
  • Document current running configuration of the network switches

Routers:

  • Review current HA configuration (HSRP/VRRP etc.)
  • Review all connections to the router to determine if any advanced routing protocols are being utilized (BGP/OSPF/EIGRP etc.)
  • Review version of IOS to determine if latest GA code is being utilized
  • Document routing tables currently being utilized by the device
  • Document redundant ISP connections that are not being utilized today so that they can be implemented during network infrastructure changes
  • Document current running configuration for the routers

Server Environment:

  • Document connections coming into the servers
  • Document policies and configuration of the physical and virtual environment
  • Document version of firmware currently being utilized
  • Document VLAN’s that are being utilized by the physical and virtual infrastructure

REMOTE OFFICE DISCOVERY

Security/Firewall:

  • Review current firewall configuration against best practices and document areas that will be impacted by network design changes
  • Review remote VPN clients that are currently terminating to the device and document routing tables
  • Review version of code that is running on the device
  • Review HA logs to determine configuration and document changes that will impact network design changes

Access Network (Stacked Switches):

  • Review Connections to determine if ether channel is configured properly and how VLAN changes will impact the infrastructure
  • Review existing configuration and VLANs against industry best practices
  • Review security policies and if there is a remote logging host that will be affected by network design changes
  • Determine if edge devices are properly connected for HA in the event one device goes offline
  • Review STP Configuration against industry best practices
  • Review version of IOS to determine if latest GA code is being utilized
  • Document current running configuration of the network switches

Wireless Network (If Applicable):

  • Review existing configuration and VLANs against industry best practices
  • Review security policies and if there is a remote logging host that will be affected by network design changes
  • Determine if edge devices are properly connected for HA in the event one device goes offline
  • Review STP Configuration against industry best practices
  • Review version of IOS to determine if latest GA code is being utilized
  • Review SSID’s for Guest and Corporate environment
  • Review policies for Guest and Corporate environment
  • Document current running configuration of the wireless controller

Wireless Network (If Applicable):

  • Review existing configuration and VLANs against industry best practices
  • Review security policies and if there is a remote logging host that will be affected by network design changes
  • Determine if edge devices are properly connected for HA in the event one device goes offline
  • Review STP Configuration against industry best practices
  • Review version of IOS to determine if latest GA code is being utilized
  • Review SSID’s for Guest and Corporate environment
  • Review policies for Guest and Corporate environment
  • Document current running configuration of the wireless controller

MONITORING DISCOVERY

NetFlow Review:

  • Document license count purchased vs used
  • Document devices currently being monitored with NetFlow
  • Document version of NetFlow currently in use
  • Review used devices to pull NetFlow configuration

NPM Review:

  • Document license count purchased vs used
  • Document devices currently being monitored within the infrastructure
  • Determine if devices are not being fully monitored based on templates that have been applied to them

For more inforamtion, contact Champion at 800-771-7000 or submit a contact form here: https://www.championsg.com/contact/

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