Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 254)

IETF RFC and internet draft support
The implementation of OSPF Graceful Restart supports the following IETF RFC:
• RFC 3623: Graceful OSPF Restart
NOTE
A secondary management module must be installed for the device to function as a graceful restart
device. If the device functions as a graceful restart helper device only, there is no requirement for a
secondary management module.
Dynamic OSPF activation and configuration
OSPF is automatically activated when you enable it. The protocol does not require a software reload.
You can configure and save the following OSPF changes without resetting the system:
• All OSPF interface-related parameters (for example: area, hello timer, router dead time cost,
priority, re-transmission time, transit delay)
• All area parameters
• All area range parameters
• All virtual-link parameters
• All global parameters
• creation and deletion of an area, interface or virtual link
• Changes to address ranges
• Changes to global values for redistribution
• Addition of new virtual links
Configuring OSPF
1. Enable OSPF on the router.
2. Assign the areas to which the router will be attached.
3. Assign individual interfaces to the OSPF areas.
4. Configure route map for route redistribution, if desired.
5. Enable redistribution, if desired.
6. Modify default global and port parameters as required.
7. Modify OSPF standard compliance, if desired.
Configuration rules
The configuration rules are as follows:
• Brocade ICX 6650 devices support a maximum of 676 OSPF interfaces.
• If a router is to operate as an ASBR, you must enable the ASBR capability at the system level.
• Redistribution must be enabled on routers configured to operate as ASBRs.
• All router ports must be assigned to one of the defined areas on an OSPF router. When a port is
assigned to an area, all corresponding subnets on that port are automatically included in the
assignment.
IETF RFC and internet draft support
254 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
53-1003087-04