Technical data

Fabric OS FCIP Administrator’s Guide 19

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FCIP trunking

• Dual mode (10 Gbps and 1 Gbps) is not supported for 10GbE failover.

• Failover does not protect against Data Path (DP) complex failure.

• Disabling a VE_Port will not trigger 10GbE lossless failover. In this case, route failover will occur

if there is another route available, and may cause loss of frames.

There are two types of configuration supported:

• Active-active – Data will be sent on both 10GbE ports, thus balancing the load across the

ports.

• Active-passive – Data fails over to a passive circuit (one with a higher metric) if all active circuit

paths fail.

You must establish a metric for failover circuits. If no metric is provided, circuit data will be sent

through both ports and the load will be balanced. Circuits using the crossport interface use the

default metric of 0. A metric of 1 is required for a standby circuit.

Active-active configuration

The following examples shows an active-active configuration in which two circuits are configured

with the same metric, one circuit going over xge0 and the other circuit going over the crossport

using xge1 as the external port (for more information on configuring crossports, refer to

“Crossports” on page 13). The metric values of both the circuits are the same (default value), so

both circuits send data. The load is balanced across these circuits. Effective bandwidth of the

tunnel in this example is 2 Gbps.

1. Configure an IP address on interface xge0.

portcfg ipif 8/xge0 create 192.168.11.20 255.255.255.0 1500

2. Configure an IP address on crossport interface xge1.

portcfg ipif 8/xge1 create 192.168.10.10 255.255.255.0 1500 –x

3. Create a tunnel with one circuit going over xge0.

portcfg fciptunnel 8/22 create 192.168.11.20 192.168.11.21 1000000

4. Add another circuit, going over crossport xge1, to the tunnel.

portcfg fcipcircuit 8/22 create 1 192.168.10.10 192.168.10.11 1000000

NOTE

If the source and destination addresses are on different subnets, you must configure IP routes for

the crossport addresses. Refer to “Configuring IP routes with crossports” on page 14.

Active-passive configuration

The following example shows an active-passive configuration in which two circuits are configured

with the different metrics, one circuit going over xge0 and the other circuit going over the crossport

using xge1 as the external port. In this example, circuit 1 is a failover circuit because it has a higher

metric. When circuit 0 goes down, the traffic is failed over to circuit 1. Effective bandwidth of the

tunnel in this example is 1 Gbps

1. Configure an IP address on interface xge0.

portcfg ipif 8/xge0 create 192.168.11.20 255.255.255.0 1500

2. Configure an IP address on crossport interface xge1.

portcfg ipif 8/xge1 create 192.168.10.10 255.255.255.0 1500 –x