Total Overview Pt 2 Flashcards
mGRE
Multipoint generic routing encapsulation-A tunneling protocol allowing multiple communications in a single tunnel
- commonly used with DMVPN to create site to site vpn connections between offices in a company. O between company and cloud provider
- mGRE creates tunneling dynamically(when needed)
MIB
A a hierarchal collection of information used to store information about net work devices
MPLS
Multipoint protocol label switching-A telecommunications protocol which give a packet a short number or label to be used for routing decisions
- use cases:
iSP and large enterprise networking for VPN or more efficient routing with QOS capability
- labels are assigned by a LSR (label switching edge router
MSS
Maximum segment size- the maximum size the payload of a top segment can be
-does not conclude header size
-mss= MTU - IP header - TCP header
Use cases- network performance through less fragmentation and less packet loss
NAC
A security framework that uses policies, procedures and technologies to allow and monitor access to a network
- - before a device joins it goes through a pre-admission check with will check devices security posture and use service like 802.1x, TACACS+ or RADIUS to verify user authentication and authorization
- - Then while a device is in the net it is continually checked for compliance
NAS
A specialized network storage device that connects to the internet rather then a system and provides file level access the multiple users
Capabilities-
-File level storage
-Its own OS which is the normal os of -the device it’s on like AFP or NFS
-integrates with directory services like LDAP and AD to provide user authentication and access control
- comes with built in back up capabilities
NFV
Network function virtualization- A type of network architecture setup where hardware components like router firewalls, switches and load balancer are run as a software component on a standard server
- benefits- lower cost, scalability, resource utilization
PAT
Port address translation- a type of NAT allowing multiple internal devices to use a single public ip and differentiating between each internal session by linking the internal ip to a unique port number
QOS
A set of technologies used to prioritize and manage types of traffic on the network ieee 802.1p
- QOS classifys the traffic then prioritizes off the at classification as well as reversing bandwidth for higher priority traffic types and shaping the traffic or controlling the speed at which it flows
Traffic shaping
A network management technique which controls the flow of traffic into and out of the network
QSFP
A small form factor transcriber used for high speed data communication
-used to connect switches, and routers, and server
-supports infiniband, SAS( serial attached scsi) and fiber channel
-40 to 400gbos depending on model
SFP
1gbps, gigabit eth and fiber application
SFP+
10 gbps, gigabit eth and fiber application
QSFP
40gbps using 4 lanes of 10gbps each
QSFP+
40 to 56 gbps using 4 lanes of 10 or 14 gbps each
