Brocade Fabric OS FCIP Administrator's Guide v7.1.0 (53-1002748-01, March 2013)

Fabric OS FCIP Administrator’s Guide 51

53-1002748-01

Creating a multicircuit tunnel (example)

• “Creating an FCIP tunnel” on page 42

• “Creating additional FCIP circuits” on page 49

To create a tunnel between two switches or blades, you must first understand the IP network

infrastructure between the sites. Each circuit requires a pair of IP interface addresses (either IPv4

or IPv6). Therefore, to create an FCIP Tunnel with six circuits, you need 12 IP addresses: six for the

site A switch and six for the site B switch. In the simplest configuration (non-routed), the IP

addresses can all be on the same IP subnet with no iproutes. In routed configurations, you will also

define IP routes (IP gateway addresses). In the following example, six different IP subnets are used,

although this is not a requirement.

Use the following steps for the multicircuit tunnel example illustrated in Figure 13 on page 50.

1. Assign IP addresses to each switch GbE port using the portcfg ipif command. The portcfg ipif

command requires the IP address, subnet mask, and the MTU for that IP interface. The

following examples show how to create the IP interfaces (IPIFs) for this configuration.

Site A

portcfg ipif ge0 create 192.168.0.63 255.255.255.0 1500

portcfg ipif ge1 create 192.168.1.63 255.255.255.0 1500

portcfg ipif ge2 create 192.168.2.63 255.255.255.0 1500

portcfg ipif ge3 create 192.168.3.63 255.255.255.0 1500

portcfg ipif ge4 create 192.168.4.63 255.255.255.0 1500

portcfg ipif ge5 create 192.168.5.63 255.255.255.0 1500

Site B

portcfg ipif ge0 create 192.168.0.64 255.255.255.0 1500

portcfg ipif ge1 create 192.168.1.64 255.255.255.0 1500

portcfg ipif ge2 create 192.168.2.64 255.255.255.0 1500

portcfg ipif ge3 create 192.168.3.64 255.255.255.0 1500

portcfg ipif ge4 create 192.168.4.64 255.255.255.0 1500

portcfg ipif ge5 create 192.168.5.64 255.255.255.0 1500

2. Create the FCIP tunnel using the portcfg fciptunnel command. Note that the following example

creates an empty tunnel with hardware compression enabled to which you will add circuits.

Note that FCIP tunnels are represented in the switch as VE_Ports. There are several ways to

create this tunnel as shown by the following options:

• To create the tunnel with hardware compression, use the following commands.

Site A

portcfg fciptunnel 16 create -c 1

Site B

portcfg fciptunnel 16 create -c 1

• To use this tunnel for FICON traffic with hardware compression, create it with the following

commands.

Site A

portcfg fciptunnel 16 create --ficon -c 1