A service provider is implementing an nV Edge system with two Cisco ASR 9000 chassis.
Each chassis has two RSPs.
Which two cabling methods reflect the minimum configuration needed for full synchronization between the two Cisco ASR 9000 chassis? (Choose two.)
The nV Edge system enables two or more ASR 9000 chassis to operate as a single logical entity, with one control plane and one management plane. This provides operational simplicity, higher availability, and easier capacity expansion. To synchronize the two ASR 9000 chassis, certain cabling methods need to be implemented. The minimum configuration for full synchronization between the two Cisco ASR 9000 chassis requires the following two cabling methods:
A. Create the IRL connections between the two chassis via Layer 1 connections using the EOBC 10 Gbps ports of the RSPs.
This cabling method involves using the Inter-Router Link (IRL) to connect the two chassis. The IRL connection is established between the Ethernet Out-of-Band Channel (EOBC) 10 Gbps ports of the RSPs. The EOBC is a dedicated Ethernet management port on the RSP that provides access to the RSP's management plane. The IRL connection carries the control and management traffic between the two chassis. This cabling method uses Layer 1 connections, which are physical connections that provide electrical or optical connectivity between the devices. This method provides high-speed connectivity between the two chassis, and the use of the EOBC ports ensures that the control and management traffic is isolated from the data traffic.
C. Create the IRL connections between the two chassis via Layer 1 connections using the 10 Gbps ports of the line cards.
This cabling method is similar to method A, but instead of using the EOBC ports of the RSPs, it uses the 10 Gbps ports of the line cards to establish the IRL connections. This method provides additional flexibility, as it allows the use of any 10 Gbps ports on the line cards for the IRL connections. However, this method requires the line cards to be configured with the appropriate IRL protocol and VLAN tagging.
Therefore, the correct answers are A and C, as they represent the minimum configuration needed for full synchronization between the two Cisco ASR 9000 chassis.