Config Ospf Add Vlan Area - Extreme Networks ExtremeWare Command Reference Manual

config ospf add vlan area

config ospf add vlan [<vlan name> | all] area <area identifier> {passive}
Description
Enables OSPF on one or all VLANs (router interfaces).
Syntax Description
vlan name
all
area identifier
passive
Default
Disabled.
Usage Guidelines
None.
Using OSPF and MPLS. The following detailed information pertains to using OSPF in conjuction with
MPLS. When the peer LSR is also an Extreme switch, the following options are available for ensuring
that an OSPF route is advertised for the tunnel endpoint IP address:
• A route is advertised when OSPF is enabled on the VLAN to which the IP address is assigned (using
the
config ospf add vlan
• A route is advertised when the peer switch is configured to distribute direct routes into the OSPF
domain (via the
the tunnel LSP needs to cross OSPF area boundaries or when the Extreme Standby Routing Protocol
(ESRP) is enabled on the VLAN to which the IP address is assigned.
In either case, LDP must be configured to advertise label mappings for direct routing interfaces.
In some configurations, you may want to enable loopback mode on the VLAN to which the tunnel
endpoint IP address is assigned. One situation where loopback mode may be useful is when multiple
physical interfaces, associated with different VLANs, are connected to the MPLS backbone. In this case,
use of loopback-mode can provide redundancy by enabling TLS traffic to continue even when the
physical interfaces associated with the tunnel endpoint IP address VLAN fail.
Example
The following command enables OSPF on a VLAN named accounting:
config ospf add vlan accounting area 0.0.0.1
History
This command was available in ExtremeWare 2.0. This command was modified in an ExtremeWare IP
Technology Services Release based on ExtremeWare v6.1.8b12 to support MPLS modules.
ExtremeWare Software 7.0.0 Command Reference Guide
Specifies a VLAN name.
Specifies all VLANs.
Specifies the area to which the VLAN is assigned.
Specifies to stop sending and receiving hello packets on this interface.
command on the peer switch).
enable ospf export direct
command). The export option should be used when
config ospf add vlan area
925