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NETGEAR 8800 Chassis Switch CLI Manual configure ospf restart-helper configure ospf [vlan [all | ] | area | virtual-link ] restart-helper [none | planned | unplanned | both] Description Configures the router as a graceful OSPF restart helper router. Syntax Description vlan-name all area-identifier router-identifier none planned unplanned both Specifies a VLAN name. Specifies all VLANs Specifies an OSPF area. Specifies the router ID of the remote router of the virtual link. Do not act as a graceful OSPF restart helper router. Only act as a graceful OSPF restart helper router for planned restarts. Only act as a graceful OSPF restart helper router for unplanned restarts. Act as a graceful OSPF restart helper router for both planned and unplanned restarts. Default The router default is none. Usage Guidelines This command configures the router as a graceful OSPF restart helper router for a single or multiple routers. When the router is acting as a helper, it will continue to advertise the restarting router as if it was fully adjacent. One OSPF interface may not help more than one restarting router. An OSPF interface may not enter helper mode when the router is performing a graceful restart. All the interfaces to a neighbor router must be configured as graceful restart helpers, or the router will not support graceful restart for its neighbor. Example The following command configures a router to be a graceful OSPF helper router for planned restarts for all routers in area 10.20.30.40: configure ospf area 10.20.30.40 restart-helper planned configure ospf routerid configure ospf routerid [automatic | ] Chapter 23. OSPF Commands | 1013

Section	Page
NETGEAR 8800 Chassis Switch CLI Manual	1
Contents	3
1. Command Reference Overview	6
Introduction	6
Audience	6
Structure of this Guide	7
Understanding the Command Syntax	7
Access Levels	7
Syntax Symbols	8
Syntax Helper	8
Object Names	9
Command Shortcuts	10
Port Numbering	10
Numerical Ranges	10
Line-Editing Keys	11
Command History	12
2. Commands for Accessing the Switch	13
3. Commands for Managing the Switch	57
SNMP	57
Telnet	58
TFTP	58
System Redundancy with Dual Management Modules Installed	58
Power Supply Management	58
Simple Network Time Protocol	59
4. Commands for Managing the NETGEAR 8800 Software	157
5. Commands for Configuring Slots and Ports on a Switch	190
6. Commands for Configuring LLDP	269
7. PoE Commands	300
Summary of PoE Software Features	300
8. Commands for Status Monitoring and Statistics	330
Event Management System	330
sFlow Statistics	331
RMON	331
9. VLAN Commands	425
10. FDB Commands	453
11. Commands for Virtual Routers	472
12. Policy Manager Commands	481
13. ACL Commands	487
14. QoS Commands	520
15. Security Commands	554
SSH	554
SSL	554
User Authentication	554
Denial of Service	555
16. Network Login Commands	679
17. STP Commands	737
STP	737
RSTP	737
MSTP	738
Spanning Tree Domains	738
Member VLANs	738
Carrier VLAN	738
Protected VLAN	739
STPD Modes	739
Encapsulation Modes	740
STP Rules and Restrictions	741
18. VRRP Commands	793
19. IP Unicast Commands	814
20. IPv6 Unicast Commands	904
21. RIP Commands	950
22. RIPng Commands	973
23. OSPF Commands	994
OSPF Edge Mode	995
24. OSPFv3 Commands	1036
OSPF Edge Mode	1037
25. BGP Commands	1075
26. IP Multicast Commands	1163
27. IPv6 Multicast Commands	1242
28. MSDP Commands	1261
29. vMAN (PBN) Commands	1296
A. Configuration and Image Commands	1306
B. Troubleshooting Commands	1345
Event Management System	1345