X-Link option 2A (MLAG to LAG) topology

This section covers details about X-Link option 2A topology.

Based on the X-Link option 2A topology and the uplink bandwidth option (10 Gbps or 40 Gbps) for the customer data center connection, use the following port connectivity diagram:

Figure 1. Customer data center network connection

Note

• The interconnect switch requires a single 1 Gbps copper connection (RJ45) from the out-of-band (OOB) management port on the interconnect switch to the management switch or the OOB interconnect network.

• Ports 51 and 54 of the interconnect switch do not have LED status indicators.

The following tables provide the ports from the interconnect switches which need to be connected to the customer data center network.

Table 1. 10 Gbps interconnect ports

Interconnect ports	Customer uplink device
Primary interconnect, Mgmt port	Device A – 1 Gbps available port
Primary interconnect, port 46	Device A
Primary interconnect, port 48	Device B
Secondary interconnect, Mgmt port	Device B - 1 Gbps available port
Secondary interconnect, port 46	Device A
Secondary interconnect, port 48	Device B

Table 2. 40 Gbps interconnect ports

Interconnect Ports	Customer Uplink Device
Primary interconnect, Mgmt port	Device A – 1 Gbps available port
Primary interconnect, port 53	Device A
Primary interconnect, port 54	Device B
Secondary interconnect, Mgmt port	Device B - 1 Gbps available port
Secondary interconnect, port 53	Device A
Secondary interconnect, port 54	Device B

Note

Choose either the 10 Gbps or the 40 Gbps option.

Table 3. X-Link option 2A topology specifications

Configuration	Customer side configured with LAG on each switch Network interconnect as Multi-enclosure link aggregation network (MLAG) Operates as one LAG forwarding and one LAG standby
OOB Interconnect Network	One access port for each interconnect switch connected to the management switch or VLAN
Requirements	LACP enabled STP Version 3 required: 1 logical interface forwarding 1 logical interface blocking

Note

The uplink VLAN must be different than the OOB management VLAN.

Figure 2. X-Link topology option 2A