Cisco Systems 3750E 用户手册

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

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.

NSF

1

 awareness

Enabled

2

. Allows Layer 3 switches to continue forwarding 

packets from a neighboring NSF-capable router during hardware 
or software changes.

NSF capability

Disabled. 

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.