Ospf Graceful Restart Configuration Example - H3C S3610-28P Operation Manual

Operation Manual – IPv4 Routing
H3C S3610&S5510 Series Ethernet Switches

3.10.6 OSPF Graceful Restart Configuration Example

I. Network requirements
Switch A, Switch B and Switch C that belong to the same autonomous system and
the same OSPF routing domain are GR capable.
Switch A acts as the non IETF standard GR Restarter whereas Switch B and
Switch C are the GR Helpers and remain OOB synchronized with Switch A
through the GR mechanism.
II. Network diagram
Vlan-int100
192.1.1.2/24
GR helper
Router ID: 2.2.2.2
Figure 3-26 Network diagram for OSPF-based GR configuration
III. Configuration procedure
1) Configure Switch A
<SwitchA> system-view
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] ip address 192.1.1.1 255.255.255.0
[SwitchA-Vlan-interface100] quit
[SwitchA] router id 1.1.1.1
[SwitchA] ospf 100
[SwitchA-ospf-100] enable link-local-signaling
[SwitchA-ospf-100] enable out-of-band-resynchronization
[RouterA-ospf-100] graceful-restart
[SwitchA-ospf-100] area 0
[SwitchA-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255
[SwitchA-ospf-100-area-0.0.0.0] return
2) Configure Switch B
<SwitchB> system-view
[SwitchB] acl number 2000
[SwitchB-acl-basic-2000] rule 10 permit source 192.1.1.1 0.0.0.0
[SwitchB-acl-basic-2000] quit
[SwitchB] interface vlan-interface 100
Router ID: 1.1.1.1
GR restarter
Switch A
Vlan-int100
192.1.1.1/24
Vlan-int100
192.1.1.3/24
Switch B Switch C
Router ID: 3.3.3.3
GR helper
3-63
Chapter 3 OSPF Configuration