Ospf Timer Retransmit - 3Com 5500-EI PWR Reference Manual

Description
Use the ospf timer poll command to configure the poll interval at which the interface sends hello
packets to the neighbor in the Down state.
Use the undo ospf timer poll command to restore the default.
By default, the poll interval is 40 seconds.
On an NBMA network, if a neighbor becomes invalid, Hello packets will be transmitted at intervals of
poll seconds. You can configure the poll seconds to specify how often the interface transmits Hello
packets before it establishes neighbor relationship with the router. The poll interval should be no less
than 4 times the Hello interval.
Examples
# Configure to transmit poll Hello packet through interface VLAN-interface 20 every 130 seconds.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Vlan-interface 20
[Sysname-Vlan-interface20] ospf timer poll 130

ospf timer retransmit

Syntax
ospf timer retransmit interval
undo ospf timer retransmit
View
Interface view
Parameters
interval: Interval, in seconds, for retransmitting LSA on an interface. It ranges from 1 to 3600.
Description
Use the ospf timer retransmit command to configure the interval for retransmitting an LSA on an
interface.
Use the undo ospf timer retransmit command to restore the default.
By default, the interval for retransmitting an LSA is 5 seconds.
If a router running OSPF transmits a link state advertisement (LSA) to the peer, it needs to wait for the
acknowledgement packet from the peer. If no acknowledgement is received from the peer within the
LSA retransmission interval, this LSA will be retransmitted.
The LSA retransmit between adjacent routers should not be set too short; otherwise, unexpected
retransmission will occur (See RFC2328).
Examples
# Set the interval for retransmitting LSA between the interface VLAN-interface 10 and the adjacent
routers to 12 seconds.
<Sysname> system-view
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