VLAN Trunks and EtherChannel Bundles Flashcards
Does VTP support having multiple VTP servers in a domain?
yes
In a VTP domain that is version 3 what must the primary VTP server be set to?
VTP primary
What does VTP use in order to advertise updates across trunk links to all switches in a VTP domain?
multicast address
What are the three types of VTP advertisements?
summary, subset, client requests
When does a VTP summary advertisement occur?
every 300 seconds or when a VLAN is added, removed or changed
When does a VTP subset advertisement occur?
after a VLAN configuration change occurs
When does VTP client request advertisement occur?
when a switch with a lower revision number joins a VTP domain that has a higher revision number
Should you reset every switch to a VTP revision number 1 or 0 before connecting it to a VTP domain?=
0
What happens to access ports when you remove a VLAN from a switch?
access ports are move to VLAN 1
Dynamic Trunk ports are established by switch ports sending what to negotiate whether the other end can be a trunk port.
DTP advertised packets
How often does DTP advertise itself to neighbors so that they are aware of it DTP status?
30 seconds
Ethernet network speeds are based on the powers of what?
10
10Mbps, 100Mpbs, 1Gbps …
What’s another name for a logical EtherChannel?
member interfaces
Does STP operate on a logical link or a physical link?
logical link
What is the primary advantage of using port channels-EtherChannel?
reduction in topology changes when member link goes down.
What does DWDM stand for?
What bandwidth are DWDM transceivers capability of?
Cisco Dense Wave Division Multiplexing
10-Gigabits
What are the port modes for PAgP - Port Aggregation Protocol?
Auto and Desirable
What are the port modes for LACP - Link Aggregation Protocol?
Passive and Active
What is LACP fast?
LACP is advertised every 1 second and links can be identified and removed in 3 seconds compared to 90 seconds.
Maximum number of port-channel interfaces need to be configured only on what?
For best practice and to accommodate load-balancing hashes, maximum number of port-channel interfaces should be configured in powers of?
master switch
two (ex. 2, 4, 8, 16)
The port-channel master switch control what, and how?
which member interfaces and associated links are active by the LACP port priority
What does the LACP system priority identify?
which is the master switch for a port channel
What is the master switch on a port channel responsible for choosing?
which member interfaces are active in a port channel
The traffic that flows across a port-channel is forwarded out member links based on what type of calculation?
calculated hash values across various packet header fields
