If a Citrix ADC has a bottleneck on a 10G port and you want to increase total bandwidth, which action should you take?

If a Citrix ADC has a bottleneck on a 10G port and you want to increase total bandwidth, which action should you take?

• A. Purchase another Citrix ADC MPX appliance.
• B. Plug another 10G Citrix ADC port into the router.
• C. Add two more 10G Citrix ADC ports to the network and configure VLAN.
• D. Add another 10G Citrix ADC port to the switch, and configure Link Aggregation Control Protocol (LACP).

Answer: (D)

The key idea is boosting bandwidth by combining multiple physical links into one logical path so traffic can be spread across them. By adding another 10G port on the ADC side and connecting it to the switch, then configuring Link Aggregation Control Protocol (LACP) to create a port-channel, you effectively create a single wider pipe (and redundancy) between the ADC and the network. LACP negotiates with the switch to form a multi-link active-standby or active-active bundle, so traffic can be distributed across both 10G links instead of being limited to a single 10G path. This increases total throughput beyond 10G and provides failover if one link or port fails. It requires the switch to support LACP and the ADC to participate in the port-channel; once set up, the workload is balanced across the aggregated links. Other options don’t reliably increase the usable bandwidth. Simply plugging another 10G port into the router may end up with multiple, separate 10G paths that aren’t aggregated, so you don’t gain the combined throughput. Adding more ports and VLANs without an aggregated link still risks being bounded by the single upstream path. Purchasing a new appliance is a broader-scale change, not a targeted, efficient way to expand the existing link capacity.

The key idea is boosting bandwidth by combining multiple physical links into one logical path so traffic can be spread across them. By adding another 10G port on the ADC side and connecting it to the switch, then configuring Link Aggregation Control Protocol (LACP) to create a port-channel, you effectively create a single wider pipe (and redundancy) between the ADC and the network.

LACP negotiates with the switch to form a multi-link active-standby or active-active bundle, so traffic can be distributed across both 10G links instead of being limited to a single 10G path. This increases total throughput beyond 10G and provides failover if one link or port fails. It requires the switch to support LACP and the ADC to participate in the port-channel; once set up, the workload is balanced across the aggregated links.

Other options don’t reliably increase the usable bandwidth. Simply plugging another 10G port into the router may end up with multiple, separate 10G paths that aren’t aggregated, so you don’t gain the combined throughput. Adding more ports and VLANs without an aggregated link still risks being bounded by the single upstream path. Purchasing a new appliance is a broader-scale change, not a targeted, efficient way to expand the existing link capacity.