Vocab + misc Flashcards
What is an ASN?
Autonomous System number.
They are routing prefixes assigned in blocks, misconfiguration can cause BGP issues.
What is VTP?
VLAN Trunking Protocol.
VTP automatically propogates VLAN information over trunks.
What is LACP?
Link Aggregation Control Protocol.
LACP allows you to bundle seperate physical interfaces into one logical unit.
EtherChannel and Port Channeling refer to what?
NIC teaming
VLAN information is locally significant and does not pass to other switches on it’s own, what are two ways overcome this?
One way of solving this is by manually configuring the same VLAN forwarding settings on both switches.
Another is to set a switch as a VTP server and allow VTP to automatically propegate VLAN information between switches.
What is NIC teaming?
Multiple pairs of NIC ports that act as a single virtual NIC. Used for load balancing.
Imagine a 1Gbps port times 4! Now you have a 4Gbps link that is treated as its own connection.
The default behavior of a switch is to block redundant links to prevent loops. When may redundant connections be useful?
There are times where you need to aggregate the bandwidth of more than one links. (NIC teaming)
In order to use NIC teaming, what must be the same? What can be used to automatically configure these links?
NICs must have the same speed, duplex, VLANs, and trunking configuration.
LACP monitors and makes sure that before a virtual interface is aggregrated, that everything matches and is compatible.
For a trunk link, the ___ must match, otherwise unrecognized traffic will be dropped.
Native VLAN
