User guide

Configuring Automatic Fabric Configuring Automatic Fabric
OmniSwitch AOS Release 7 Switch Management Guide March 2015 page 14-25
• Automatic Fabric strops trying to learn IP routing protocols and neighbors on interfaces not already
configured with a routing protocol. The configuration for IP interfaces on which routing protocols were
previously discovered is not removed.
Use the show auto-fabric config command and the show auto-fabric config interface command to
verify the Automatic Fabric status for the switch and switch ports.
Configuring the Discovery Status for Specific Protocols
Discovery for the LACP, SPB, and MVRP protocols can be enabled or disabled globally or on a per-port
basis. For the IP routing protocols (OSPFv2, OSPFv3, and IS-IS), the discovery status is set on a global
basis and is used to specify which IP protocols the switch will attempt to detect and configure on active IP
interfaces.
When the Automatic Fabric discovery window is started, only those protocols that are enabled for
discovery are processed. By default, the discovery status for all the Automatic Fabric protocols is enabled.
To globally enable or disable protocol discovery, use the auto-fabric protocols command. For example:
-> auto-fabric protocols lacp admin-state disable
-> auto-fabric protocols mvrp admin-state enable
-> auto-fabric protocols ip ospfv2 admin-state enable
-> auto-fabric protocols ip ospfv3 admin-state disable
-> auto-fabric protocols ip isis admin-state disable
In this example, discovery is only attempted for MVRP and OSPFv2. Discovery for LACP, OSPFv3, and
IS-IS is disabled.
To enable or disable protocol discovery on a specific port, use the auto-fabric protocols command with
the interface parameter. For example:
-> auto-fabric protocols spb interface 1/3 admin-state disable
-> auto-fabric protocols lacp interface 1/10-15 admin-state disabled
It is important to note that the port level setting for Automatic Fabric discovery overrides the global switch
setting. For example, if discovery is globally enabled for SPB but disabled on port 1/2, Automatic Fabric
will not include that port in the discovery window for SPB.
The auto-fabric protocols command is also used to enable or disable loopback detection. For example:
-> auto-fabric protocols loopback-detection admin-state disable
When enabled, Loopback Detection is activated on UNP SPB access ports that are bound to a SAP.
Configuring the Discovery Interval
When Automatic Fabric is enabled for the switch, the discovery interval time specifies how often the
switch will automatically start the Automatic Fabric discovery process. For example, if this value is set to
30 minutes, every 30 minutes the switch will start the discovery process.
Setting the discovery interval value to a time that is more than twice the value of the switch MAC address
aging time is recommended. For example, if the MAC address aging time is set to 5 minutes, set the
discovery interval time to 11 minutes. Otherwise, inactive MAC addresses may not have aged out on
Automatic Fabric ports by the next discovery interval start time.