Accton Technology ES4626 - Manual (Page 465)

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between 0~4294967295, and is defaulted at 0
Command Mode: OSPF protocol mode
Usage Guide: When routes are introduced into OSPF from other routing protocols, it is
required to advertise every route in a external LSA. This command is for advertise one
summary route for those introduced routes contained in specific network address and
masks, which could greatly reduces the size of the link state database.
Example: Switch#config terminal
Switch(config)#router ospf
Switch(config-router)#summary-address 172.16.0.0/16 tag 3
13.6.3.43 timers spf
Command: timers spf
no timers spf
Function: Adjust the value of the route calculating timer. The “no timers spf” command
restores relevant values to default
Parameter:
5 seconds by default
10 seconds by default
Command Mode: OSPF protocol mode
Usage Guide: This command configures the delay time between receiving topology
change and SPF calculation, further configured the hold item between two discontinuous
SPF calculation
Example: Switch#config terminal
Switch(config)#router ospf
Switch(config-router)#timers spf 5 10
13.6.4 OSPF Example
13.6.4.1 Configuration Example of OSPF
Scenario 1: OSPF autonomous system.
This scenario takes an OSPF autonomous system consists of five
ES4624-SFP/ES4626-SFP switch for example, where layer3 SwitchA and SwitchE make
up OSPF area 0, layer3 SwitchB and SwitchC form OSPF area 1 (assume vlan1
interface of layer3 SwitchA belongs to area 0), layer3 SwitchD forms OSPF area 2
(assume vlan2 interface of layer3 SwitchE belongs to area 0). SwtichA and SwitchE are
backbone layer3 switches, SwtichB and SwitchD are area edge layer3 switches, and
SwitchC is the inside-area layer3 switch.