300-370 · Question #73
Which two statements describe the software v7.0 implementation of LAG on a Cisco controller? (Choose two.)
The correct answer is A. It is supported on Cisco WLC 2500. C. Fewer IP addresses are required. Cisco WLC v7.0 supports Link Aggregation Group (LAG) on 2500 series controllers, and its implementation requires fewer IP addresses due to a single logical interface.
Question
Which two statements describe the software v7.0 implementation of LAG on a Cisco controller? (Choose two.)
Options
- AIt is supported on Cisco WLC 2500.
- BIt is supported on the Cisco FlexConnect 7500 controller.
- CFewer IP addresses are required.
- DThe LAG port becomes port 15.
- EThe LAG port becomes port 29.
- FThe switch channel group negotiates with LAGP.
- GThe switch channel group negotiates with PaGP.
How the community answered
(40 responses)- A88% (35)
- B3% (1)
- D8% (3)
- E3% (1)
Why each option
Cisco WLC v7.0 supports Link Aggregation Group (LAG) on 2500 series controllers, and its implementation requires fewer IP addresses due to a single logical interface.
Cisco WLC 2500 series controllers, among others, gained support for Link Aggregation Group (LAG) with software version 7.0 and later to bundle multiple physical ports into a single logical link.
The Cisco FlexConnect 7500 controller is not explicitly associated with LAG support in the context of WLC v7.0; LAG is typically configured on centralized controllers for their physical ports.
When LAG is configured, all bundled ports operate as a single logical interface, meaning only one IP address is required for the management interface, reducing IP address consumption.
The LAG port does not become a specific port number like 15; LAG is a logical grouping of multiple physical ports.
The LAG port does not become a specific port number like 29; LAG is a logical grouping of multiple physical ports.
LAG (Link Aggregation Group) typically uses LACP (Link Aggregation Control Protocol) for negotiation, not LAGP, which is not a standard protocol.
PaGP (Port Aggregation Protocol) is a Cisco proprietary protocol for EtherChannel, and while similar, LACP is the open standard negotiation protocol commonly referred to with LAG.
Concept tested: Cisco WLC LAG Implementation v7.0
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-0/configuration/guide/c70/c70lag.html
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