VLAN Trunks and EtherChannel Bundles - EtherChannel Bundle
10 important questions on VLAN Trunks and EtherChannel Bundles - EtherChannel Bundle
An EtherChannel bundle or EtherChannel or Port Channel is defined in the 802.3AD Link Aggregation specification. What is it used for.
What 3 methods can be used to configure Etherchannels/Port Channels
2. Use LACP Link Aggregation Control Protocl
3. Use PAgP Port Aggregation Protocol
PAgP advertises messages to which multicast MAC address? And with which protocol code?
protocol code: 0x0104
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Which 2 modes does PAgP operate in?
2. Desirable: Initiates a Port Channel and transmits PAgP messages. Also responds when it receives PAgP messages.
What Multicast MAC address does LACP advertise it's messages to?
What 2 modes does LACP operate in?
2. Active: Initiates an Etherchannel connection and actively sends out LACP packets. Also responds to LACP packets it receives.
What benefit does the later added LACP Fast setting has over the original LACP standard.
However the setting has to match on both switches for the Port Channel to succesfully form.
Which 9 settings must match on member interfaces for an EtherChannel to be succesfully configured.
2. Port mode.
3. Native VLAN.
4. Allowed VLAN.
5. Speed
6. Duplex
7. MTU
8. Load interval
9. Storm Control
What are the 3 different traffic properties the switch can use in it's Load Balancing hashing algorythm?
2. Source and Destination IP address
3. Source and Destination TCP/UDP Ports
Why is it best to have links in Port Channels in powers of 2 (2, 4, 8)?
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