Cisco Systems 3750E manual Ospf Nonstop Forwarding, 38-27

Chapter 38 Configuring IP Unicast Routing

Configuring OSPF

Table 38-5	Default OSPF Configuration (continued)
Feature		Default Setting
Distance OSPF		dist1 (all routes within an area): 110.
		dist2 (all routes from one area to another): 110.
		and dist3 (routes from other routing domains): 110.
OSPF database filter		Disabled. All outgoing link-state advertisements (LSAs) are
		flooded to the interface.
IP OSPF name lookup		Disabled.
Log adjacency changes		Enabled.
Neighbor		None specified.
Neighbor database filter		Disabled. All outgoing LSAs are flooded to the neighbor.
Network area		Disabled.
NSF1 awareness		Enabled2. Allows Layer 3 switches to continue forwarding
		packets from a neighboring NSF-capable router during hardware
		or software changes.
NSF capability		Disabled.
		Note The Catalyst 3750-E switch stack supports OSPF
		NSF-capable routing for IPv4.
Router ID		No OSPF routing process defined.
Summary address		Disabled.
Timers LSA group pacing		240 seconds.
Timers shortest path first (spf)		spf delay: 5 seconds.
		spf-holdtime: 10 seconds.
Virtual link		No area ID or router ID defined.
		Hello interval: 10 seconds.
		Retransmit interval: 5 seconds.
		Transmit delay: 1 second.
		Dead interval: 40 seconds.
		Authentication key: no key predefined.
		Message-digest key (MD5): no key predefined.

1.NSF = Nonstop forwarding

2.OSPF NSF awareness is enabled for IPv4 on Catalyst 3750-E and 3560-E switches running the IP services feature set.

OSPF Nonstop Forwarding

The switch stack supports two levels of nonstop forwarding (NSF):

•OSPF NSF Awareness, page 38-28

•OSPF NSF Capability, page 38-28

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		38-27