Engineering Terms Flashcards
BE6K
Cisco Phone Server Business Edition 6000
Physical Server with Cisco logo on it that runs VMWARE with Linux servers typically CUCM CUC and CUPS
CUCM
Cisco Unity Call Manger Server - Primary Phone Server where phones and teleconference equipment can register too for call routing
This is a virtual server appliance that can be accessed via the web, SSH or through VMware ESXi web interface.
CIMC / iDRAC / iLO
Management interfaces for different vendors server hardware
CIMC - Cisco Integrated Management Controller (Web Interface)
iDRAC - Integrated Dell Remote Access Controller (Web Interface)
iLO - HP Integrated Lights Out (Web Interface)
This allows remote access to Servers when access to the Operating system is not possible or even when the server is in an off state.
Basic hardware health status can be obtained from the web interface as well as more advanced tools for RAID configurations in newer versions.
NAS
Network Attached Storage
NuWave uses a product called Synology
Synology only allow access through an locally host web interface that runs off Linux.
Synology offers tools to locate NAS units on the local network.
Synology units come with a 2 year warranty and NuWave recommends you replace them every 2-5 years depending on the nature of its contents
All NAS units utilize RAID and most utilize RAID 6 which offers the ability for up to two drives to fail concurrently without cause any data loss.
Almost all Synology NAS units at NuWave use ISCSI to connect to windows servers to be used for a disk drive where local backups are being stored from Veeam.
Often in larger units (12 bays or more) Solid state drives are utilized in bay 1 and 2.
SAN
Storage Area Network
NuWave user a product called HPE Nimble (HPE is HP Enterprise)
SAN are direct attached Storage for VMWare installations. The Storage is directly attached to VMWare and appears as local storage.
Additionally Nimble has SLA of 4 hours on hard drive failure including a tech to replace the bad unit.
Traditionally Nimble SAN’s are High Availability and run on all or some Solid State Drives
SSH
Secure SHell Protocol
Used when connecting to various Servers and Networking equipment.
SSHv1 is deprecated
SSH uses ciphers to encrypt traffic over a network or over the internet.
SSH is typically used for connecting to a Cisco Catalyst Switch or a Cisco ASA as they can only be configured via SSH
ASA
Cisco Adaptive Security Appliance
Traditional Cisco Firewall
Firewalls are also known as an Edge device as in the edge of the internal network.
The ASA performs NAT (Network address translation: External IP –> Internal IP and vice versa)
ASA
Cisco Adaptive Security Appliance
Traditional Cisco Firewall
Firewalls are also known as an Edge device as in the edge of the internal network.
The ASA performs NAT (Network address translation: External IP –> Internal IP and vice versa)
POE
Power Over Ethernet
Used to power devices over the existing ethernet network connection. Typically POE is a feature that is included with a network switch and is used to power phones, access points, or IP Cameras.
A POE Injector can be used in an environment where the switch does not put out POE power. The Injector is used inline with existing Ethernet and only requires a regular power cord.
There are many version of POE but most utilize POE Class 3 (15.4w) or Class 4 (30w)
It is important to note that some low end models and older cisco catalyst Switches can not power every port with POE as the Switch power supply cannot supply enough wattage for all ports concurrently.
ISP
Internet Service Provider
STP
Spanning Tree Protocol
Used for avoid redundant paths or loops on a network. Switch A is connected to Switch B via two separate connection. One of the two ports is Forwarding while the other is Blocking. If the Forwarding port becomes disabled the Blocking port should listen and learn to become the new forwarding path.
Became a standard the year Rob was born in 1985 but was not adopted fully until much much later.
CAUTION - be very careful when working on older equipment. This networking flaw was often contributed to early internet outages.
Meraki MX
Meraki Firewall / Security Appliance / Edge Device (The original Cisco icon for a router was a circle with a X on it)
Capabilities include:
NAT
SDWAN or Site to Site VPN
Content Filtering
VLANs and Routing
DHCP and DNS
Client VPN or Meraki Anyconnect
Traffic Shaping
Threat Detection (IDS and AMP)
Inbound and outbound Traditional Firewall blocking as well as Layer 7 Firewall Filtering.
Important note. Meraki does not make a unit called a Router as the features of a traditional router are instead shared by the MX and a Lawyer 3 MS
Meraki MS
Meraki Switch
Some variations
- Layer 2
- Layer 3
- Stacked Switch that can also be layer 2 or 3
Meraki MR
Meraki Radio
Wireless Access point and Wireless bridges
Meraki MV
Meraki Video
IP camera with built in storage (NO external video Server or storage required)