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

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

Based on the X-Link option 2B 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


Diagrams of port connectivity for customer data center connection
Note:

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 2B topology specifications

Configuration

  • Customer side configured with LAG

  • 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 required

Note:

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

Figure 2. X-Link option 2B topology
Diagram of the X-Link option 2B topology